CTCI — Audit Report / Information 2025

Apr 10, 2026

CTCI CORPORATION

PARENT COMPANY ONLY FINANCIAL

STATEMENTS AND INDEPENDENT AUDITORS’

REPORT DECEMBER 31, 2025 AND 2024

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For the convenience of readers and for information purpose only, the auditors’ report and the accompanying financial statements have been translated into English from the original Chinese version prepared and used in the Republic of China. In the event of any discrepancy between the English version and the original Chinese version or any differences in the interpretation of the two versions, the Chinese-language auditors’ report and financial statements shall prevail.

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INDEPENDENT AUDITORS’ REPORT

To the Board of Directors and Shareholders of CTCI Corporation

Opinion

We have audited the accompanying parent company only balance sheets of CTCI Corporation (the “Company”) as at December 31, 2025 and 2024, and the related parent company only statements of comprehensive income, of changes in equity and of cash flows for the years then ended, and notes to the parent company only financial statements, including a summary of material accounting policies.

In our opinion, based on our audits and the reports of other auditors (please refer to the Other matter section), the accompanying parent company only financial statements present fairly, in all material respects, the financial position of the Company as at December 31, 2025 and 2024, and its financial performance and its cash flows for the years then ended in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers.

Basis for opinion

We conducted our audits in accordance with the Regulations Governing Financial Statement Audit and Attestation Engagements of Certified Public Accountants and Standards on Auditing of the Republic of China. Our responsibilities under those standards are further described in the Auditors’ responsibilities for the audit of the parent company only financial statements section of our report. We are independent of the Company in accordance with the Norm of Professional Ethics for Certified Public Accountant of the Republic of China, and we have fulfilled our other ethical responsibilities in accordance with these requirements. Based on our audits and the reports of other auditors, we believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.

資誠聯合會計師事務所 PricewaterhouseCoopers, Taiwan 110208 臺北市信義區基隆路一段 333 號 27 樓

27F, No. 333, Sec. 1, Keelung Rd., Xinyi Dist., Taipei 110208, Taiwan T: +886 (2) 2729 6666, F:+ 886 (2) 2729 6686

www.pwc.com

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Key audit matters

Key audit matters are those matters that, in our professional judgement, were of most significance in our audit of the Company’s 2025 parent company only financial statements. These matters were addressed in the context of our audit of the parent company only financial statements as a whole and, in forming our opinion thereon, we do not provide a separate opinion on these matters.

Key audit matters for the Company’s 2025 parent company only financial statements are stated as follows:

Accuracy of construction revenue

Description

Refer to Note 4(29) for accounting policy on revenue recognition, Note 5(2) for significant accounting estimates and assumptions, and Note 6(25) for details of construction revenue.

For the construction services provided by the Company, construction revenue is recognized based on the stage of completion during the contract period. The percentage of completion will be calculated based on the actual cost as of the financial period-end in proportion to the estimated total contract cost. As a result of possible inaccuracy arising from estimated total cost which involves accounting estimates, and since the estimated total contract cost will affect the recognition of work completed and construction revenue, we considered the accuracy of construction revenue as a key area of focus for this year’s audit.

How our audit addressed the matter

We performed the following audit procedures on the above key audit matter:

• A. Obtained an understanding of the internal working procedures for evaluating estimated total cost and selected samples of estimated total cost on material construction to assess the consistency of valuation working flow and internal working procedures.

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• B. Selected samples of estimated total cost which was approved by the project management department, including supplementary works as well as construction changes, and the related supporting documents of significant constructions.

• C. Obtained the details of current costs and expenses, and selected samples from relevant evidences to verify against the carrying amounts to ensure the accuracy of input cost of current year, and recalculated the stage of completion.

Impairment assessment of accounts receivable of CTCI Americas, Inc., a subsidiary of the Company’s investee accounted for using equity method

Description

Refer to Note 4(11) for the accounting policy related to accounts receivable impairment, and Note 5(2)B. for the accounting estimates and assumption uncertainty on impairment on accounts receivable.

As described in Note 6(13)B. of the consolidated financial statements, a provision for expected credit loss was recognized on the accounts receivable of CTCI Americas, Inc. (“CTCI Americas”), a subsidiary of CTCI USA Holding, Inc., an investee accounted for using equity method by the Company for the year ended December 31, 2025. Considering that the aforementioned impairment assessment of accounts receivable involves significant accounting estimates, has high uncertainty and is susceptible to subjective judgment, we considered the impairment assessment of accounts receivable of CTCI Americas as a key area of focus for this year’s audit.

How our audit addressed the matter

We performed the following audit procedures on the above key audit matter:

• A. Obtained the impairment assessment report provided by the management for the accounts receivable evaluated by the management using collective assessment, reviewed the calculation logic, related supporting documents and verified it against the accounting records to ascertain the accuracy of customer types, classification of ageing range and calculations.

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• B. For significant accounts receivable individually identified by the management, the procedures performed are as follows:

• (a) Obtained the impairment assessment report of assets issued by the expert appointed by the management and reviewed the qualification of expert to assess the independence, objectivity and competency.

• (b) Appointed the auditor’s expert by the audit team to assess the appropriateness of the valuation model used by the management’s expert in determining the recoverable amounts and to evaluate the reasonableness of significant assumptions such as the discount rate adopted by the management’s expert.

Other matter – Reference to the audits of other auditors

The financial statements of certain investments accounted for under the equity method were audited by other auditors. Therefore, our opinion expressed herein, insofar as it relates to the amounts included in respect of these associates, is based solely on the reports of the other auditors. The balance of these investments accounted for under the equity method amounted to $4,720,573 thousand and $3,004,866 thousand, constituting 5.30% and 4.24% of the parent company only total assets as at December 31, 2025 and 2024, respectively, and the comprehensive income recognized from associates and joint ventures accounted for under the equity method amounted to $2,344,610 thousand and $1,797,404 thousand, constituting 198.74% and 81.86% of the parent company only total comprehensive income for the years then ended, respectively.

Responsibilities of management and those charged with governance for the parent company only financial statements

Management is responsible for the preparation and fair presentation of the parent company only financial statements in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers, and for such internal control as management determines is necessary to enable the preparation of parent company only financial statements that are free from material misstatement, whether due to fraud or error.

www.pwc.com

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In preparing the parent company only financial statements, management is responsible for assessing the Company’s ability to continue as a going concern, disclosing, as applicable, matters related to going concern and using the going concern basis of accounting unless management either intends to liquidate the Company or to cease operations, or has no realistic alternative but to do so.

Those charged with governance, including the audit committee, are responsible for overseeing the Company’s financial reporting process.

Auditors’ responsibilities for the audit of the parent company only financial

statements

Our objectives are to obtain reasonable assurance about whether the parent company only financial statements as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditors’ report that includes our opinion. Reasonable assurance is a high level of assurance, but is not a guarantee that an audit conducted in accordance with the Standards on Auditing of the Republic of China will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these parent company only financial statements.

As part of an audit in accordance with the Standards on Auditing of the Republic of China, we exercise professional judgement and professional skepticism throughout the audit. We also:

• A. Identify and assess the risks of material misstatement of the parent company only financial statements, whether due to fraud or error, design and perform audit procedures responsive to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal

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control.

• B. Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control.

• C. Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and related disclosures made by management.

• D. Conclude on the appropriateness of management’s use of the going concern basis of accounting and, based on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Company’s ability to continue as a going concern. If we conclude that a material uncertainty exists, we are required to draw attention in our auditors’ report to the related disclosures in the parent company only financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditors’ report. However, future events or conditions may cause the Company to cease to continue as a going concern.

• E. Evaluate the overall presentation, structure and content of the parent company only financial statements, including the disclosures, and whether the parent company only financial statements represent the underlying transactions and events in a manner that achieves fair presentation.

• F. Obtain sufficient appropriate audit evidence regarding the financial information of the entities or business activities within the Company to express an opinion on the parent company only financial statements. We are responsible for the direction, supervision and performance of the audit. We remain solely responsible for our audit opinion.

We communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal control that we identify during our audit.

www.pwc.com

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We also provide those charged with governance with a statement that we have complied with relevant ethical requirements regarding independence, and to communicate with them all relationships and other matters that may reasonably be thought to bear on our independence, and where applicable, related safeguards.

From the matters communicated with those charged with governance, we determine those matters that were of most significance in the audit of the parent company only financial statements of the current period and are therefore the key audit matters. We describe these matters in our auditors’ report unless law or regulation precludes public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication.

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Liao, Fu-Ming[Chen, Ching Chang ] For and on Behalf of PricewaterhouseCoopers, Taiwan March 9, 2026

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The accompanying parent company only financial statements are not intended to present the financial position and results of operations and cash flows in accordance with accounting principles generally accepted in countries and jurisdictions other than the Republic of China. The standards, procedures and practices in the Republic of China governing the audit of such financial statements may differ from those generally accepted in countries and jurisdictions other than the Republic of China. Accordingly, the accompanying parent company only financial statements and independent auditors’ report are not intended for use by those who are not informed about the accounting principles or auditing standards generally accepted in the Republic of China, and their applications in practice.

www.pwc.com

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CTCI CORPORATION

PARENT COMPANY ONLY BALANCE SHEETS DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars)

Assets	Notes 6(1) 6(2) 6(3) 6(4) 6(25) and 7 6(5) 6(5) 7 7 6(6) 6(3) 6(4) and 8 6(7) 6(8) 6(9) 6(28) 6(11), 7 and 8	December 31, 2025 AMOUNT % $ 26,752,059 30 4,005,496 5 61,764 - - - 14,268,070 16 - - 10,770,209 12 235,803 - 18,776 - 3,182,591 4 168,489 - 3,854,326 4 63,317,583 71 668,732 1 100,300 - 20,994,090 23 392,419 - 1,414,888 2 148,765 - 1,504,782 2 569,463 1 25,793,439 29 $ 89,111,022 100	December 31, 2024	December 31, 2024
		AMOUNT $ 26,752,059 4,005,496 61,764 - 14,268,070 - 10,770,209 235,803 18,776 3,182,591 168,489 3,854,326 63,317,583 668,732 100,300 20,994,090 392,419 1,414,888 148,765 1,504,782 569,463 25,793,439 $ 89,111,022	AMOUNT $ 9,455,913 2,416,126 85,076 7,254,039 18,094,453 1,633 3,195,914 248,665 147,655 1,554,788 168,484 2,881,731 45,504,477 532,269 100,300 18,986,825 369,429 1,721,521 134,620 1,012,812 2,572,726 25,430,502 $ 70,934,979	%
Current assets 1100 Cash and cash equivalents 1110 Financial assets at fair value through profit or loss - current 1120 Financial assets at fair value through other comprehensive income - current 1136 Financial assets at amortized cost - current 1140 Contract assets - current 1150 Notes receivable, net 1170 Accounts receivable, net 1180 Accounts receivable - related parties 1200 Other receivables 1210 Other receivables - related parties 1220 Current income tax assets 1410 Prepayments 11XX Total current assets Non-current assets 1517 Financial assets at fair value through other comprehensive income - non- current 1535 Financial assets at amortized cost - non-current 1550 Investments accounted for using equity method 1600 Property, plant and equipment 1755 Right-of-use assets 1780 Intangible assets 1840 Deferred income tax assets 1900 Other non-current assets 15XX Total non-current assets 1XXX Total assets				13 4 - 10 26 - 5 - - 2 - 4
				64
				1 - 27 1 2 - 1 4
				36
				100

(Continued)

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CTCI CORPORATION

PARENT COMPANY ONLY BALANCE SHEETS DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars)

Liabilities and Equity

December 31, 2025 December 31, 2024 Notes AMOUNT % AMOUNT % 6(12) $ - - $ 2,790,000 4 6(2) 158,706 - 222,331 - 6(25) and 7 35,743,872 40 16,698,739 24 24 - - - 6(13) 12,403,080 14 13,168,283 19 7 1,158,108 1 1,914,665 3 6(14) 2,818,609 3 2,006,132 3 7 4,854 - 11,951 - 313,647 - 156,192 - 6(21) 1,194,153 1 364,209 - 7 444,288 1 491,435 1 6(16) 1,699,900 2 2,999,431 4 6(15) 326,047 1 153,726 - 56,265,288 63 40,977,094 58 6(16) 10,591,055 12 7,189,414 10 6(28) 25,142 - 20,609 - 7 1,005,433 1 1,278,369 2 6(7)(17) 950,079 1 1,823,191 2 12,571,709 14 10,311,583 14 68,836,997 77 51,288,677 72 6(22) 8,945,506 10 8,122,571 12 ( 732) - ( 871) - 6(23) 6,592,349 8 6,516,072 9 6(24) 3,282,501 4 3,070,603 4 1,397,778 2 1,477,639 2 2,104,500 2 2,117,537 3 ( 2,036,042) ( 3) ( 1,645,414) ( 2 ) 6(22) ( 11,835) - ( 11,835) - 20,274,025 23 19,646,302 28 9 11 $ 89,111,022 100 $ 70,934,979 100

Current liabilities 2100 Short-term borrowings 2120 Financial liabilities at fair value through profit or loss - current 2130 Contract liabilities - current 2150 Notes payable 2170 Accounts payable 2180 Accounts payable - related parties 2200 Other payables 2220 Other payables - related parties 2230 Current income tax liabilities 2250 Current provisions 2280 Current lease liabilities 2320 Long-term liabilities, current portion 2399 Other current liabilities 21XX Total current liabilities Non-current liabilities 2530 Bonds payable 2570 Deferred income tax liabilities 2580 Non-current lease liabilities 2600 Other non-current liabilities 25XX Total non-current liabilities 2XXX Total liabilities Equity Share capital 3110 Common stock 3170 Share capital awaiting retirement Capital surplus 3200 Capital surplus Retained earnings 3310 Legal reserve 3320 Special reserve 3350 Unappropriated retained earnings Other equity interest 3400 Other equity interest 3500 Treasury stocks 3XXX Total equity Significant contingent liabilities and unrecognized contract commitments Significant events after the balance sheet date 3X2X Total liabilities and equity

The accompanying notes are an integral part of these parent company only financial statements.

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CTCI CORPORATION

PARENT COMPANY ONLY STATEMENTS OF COMPREHENSIVE INCOME YEARS ENDED DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars, except for earnings per share amount))

Items

Year ended December 31 2025 2024 Notes AMOUNT % AMOUNT % 6(25) and 7 $ 52,677,277 100 $ 61,616,019 100 6(26)(27) and 7 ( 52,664,324) ( 100) ( 61,614,774) ( 100) 12,953 - 1,245 - 2,033 - 2,032 - 14,986 - 3,277 - 6(26)(27) and 7 ( 1,108,752) ( 2) ( 909,301) ( 2) ( 136,723) - ( 107,294) - 12(2) ( 9,304) - ( 121,040) - ( 1,254,779) ( 2) ( 1,137,635) ( 2) ( 1,239,793) ( 2) ( 1,134,358) ( 2) 7 518,260 1 440,064 1 7 139,283 - 153,982 - 21,132 - ( 106,158) - ( 283,678) ( 1) ( 197,887) ( 1) 6(7) 2,507,784 5 3,017,599 5 2,902,781 5 3,307,600 5 1,662,988 3 2,173,242 3 6(28) 28,373 - ( 230,859) - $ 1,691,361 3 $ 1,942,383 3 6(18) $ 55,177 - $ 123,903 - 6(3) 113,151 - ( 126,915) - ( 10,110) - ( 6,776) - 6(28) ( 11,035) - ( 24,781) - ( 658,779) ( 1) 287,851 1 ($ 511,596) ( 1) $ 253,282 1 $ 1,179,765 2 $ 2,195,665 4 6(29) $ 1.91 $ 2.21 $ 1.72 $ 1.97

4000 Operating revenue 5000 Operating costs 5900 Net operating margin 5920 Realized profit on sales 5950 Gross profit Operating expenses 6200 General and administrative expenses 6300 Research and development expenses 6450 Impairment loss determined in accordance with IFRS 9 6000 Total operating expenses 6900 Operating loss Non-operating income and expenses 7100 Interest income 7010 Other income 7020 Other gains and losses 7050 Finance costs 7070 Share of profit of associates and joint ventures accounted for using equity method 7000 Total non-operating income and expenses 7900 Profit before income tax 7950 Income tax benefit (expense) 8200 Profit for the year Other comprehensive income Components of other comprehensive income (loss) that will not be reclassified to profit or loss 8311 Actuarial gains on defined benefit plan 8316 Unrealized gains or losses from investments in equity instruments measured at fair value through other comprehensive income 8330 Share of other comprehensive loss of associates and joint ventures accounted for using equity method, components of other comprehensive income that will not be reclassified to profit or loss 8349 Income tax related to components of other comprehensive income that will not be reclassified to profit or loss Components of other comprehensive income (loss) that will be reclassified to profit or loss 8361 Cumulative translation differences of foreign operations 8300 Other comprehensive (loss) income for the year 8500 Total comprehensive income for the year Earnings per share (in NT dollars) 9750 Basic earnings per share 9850 Diluted earnings per share

The accompanying notes are an integral part of these parent company only financial statements.

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CTCI CORPORATION

PARENT COMPANY ONLY STATEMENTS OF CHANGES IN EQUITY YEARS ENDED DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars)

Year ended December 31, 2024 Balance at January 1, 2024 Profit for the year Other comprehensive income (loss) Total comprehensive income (loss) Appropriations of 2023 earnings Legal reserve Special reserve Cash dividends Employee stock options exercised Employee stock options exercised by subsidiary Share-based payment transactions Restricted stock Issuance of convertible bonds Issuance of convertible bonds by subsidiary and converted into capital Recognition of change in equity of associates in proportion to the Group's ownership Disposal of investments in equity instruments measured at fair value through other comprehensive income Balance at December 31, 2024	Notes		Capital	Capital	Capital		Capital surplus				Retained Earnings						Other EquityInterest	Other EquityInterest	Other EquityInterest				Treasury stocks		Total equity
			Common stock		Share capital awaitingretirement				Legal reserve		Special reserve		Unappropriated retained earnings	d	Cumulative translation ifferences of foreign operations		Unrealized losses from financial assets measured at fair value through other comprehensive income		Revaluation surplus		Other equity,others
	6(24) 6(22)(23) 6(23) 6(23) 6(23) 6(23) 6(23) 6(23) 6(3)		$ 8,037,727 - - - - - - 89,017 - - ( 4,173 ) - - - - $ 8,122,571		($ 1,330 ) - - - - - - - - - 459 - - - - ($ 871 )		$ 5,464,774 - - - - - - 209,905 24,575 414 3,714 811,747 76 867 - $ 6,516,072		$ 2,883,788 - - - 186,815 - - - - - - - - - - $ 3,070,603		$ 1,248,071 - - - - 229,568 - - - - - - - - - $ 1,477,639		$ 2,076,640 1,942,383 98,537 2,040,920 ( 186,815 ) ( 229,568 ) ( 1,660,258 ) - - - 1,735 - - - 74,883 $ 2,117,537		($ 110,180 ) - 287,851 287,851 - - - - - - - - - - - $ 177,671		($ 1,418,640 ) - ( 133,106 ) ( 133,106 ) - - - - - - - - - - ( 74,883 ) ($ 1,626,629 )		$ 51,181 - - - - - - - - - - - - - - $ 51,181		($ 193,932 ) - - - - - - - - - ( 53,705 ) - - - - ($ 247,637 )		($ 11,835 ) - - - - - - - - - - - - - - ($ 11,835 )		$ 18,026,264 1,942,383 253,282 2,195,665 - - ( 1,660,258 ) 298,922 24,575 414 ( 51,970 ) 811,747 76 867 - $ 19,646,302

(Continued)

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CTCI CORPORATION

PARENT COMPANY ONLY STATEMENTS OF CHANGES IN EQUITY YEARS ENDED DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars)

Year ended December 31, 2025 Balance at January 1, 2025 Profit for the year Other comprehensive income (loss) Total comprehensive income Appropriations of 2024 earnings Legal reserve Special reserve Cash dividends Stock dividends Employee stock options exercised Employee stock options exercised by subsidiary Share-based payment transactions Restricted stock Convertible bonds converted into capital Issuance of convertible bonds by subsidiary and converted into capital Recognition of change in equity of associates in proportion to the Group's ownership Disposal of investments in equity instruments measured at fair value through other comprehensive income Balance at December 31, 2025	Notes		Capital	Capital	Capital		Capital surplus				Retained Earnings						Other EquityInterest	Other EquityInterest	Other EquityInterest				Treasury stocks		Total equity
			Common stock		Share capital awaitingretirement				Legal reserve		Special reserve		Unappropriated retained earnings	d	Cumulative translation ifferences of foreign operations		Unrealized losses from financial assets measured at fair value through other comprehensive income		Revaluation surplus		Other equity,others
	6(24) 6(22)(23) 6(23) 6(23) 6(23) 6(23) 6(23) 6(23)		$ 8,122,571 - - - - - - 812,727 57,045 - - ( 46,856 ) 19 - - - $ 8,945,506		($ 871 ) - - - - - - - - - - 139 - - - - ($ 732 )		$ 6,516,072 - - - - - - - 121,774 19,739 ( 185 ) ( 133,075 ) 75 92 67,857 - $ 6,592,349		$ 3,070,603 - - - 211,898 - - - - - - - - - - - $ 3,282,501		$ 1,477,639 - - - - ( 79,861 ) - - - - - - - - - - $ 1,397,778		$ 2,117,537 1,691,361 52,842 1,744,203 ( 211,898 ) 79,861 ( 812,727 ) ( 812,727 ) - - - 1,260 - - - ( 1,009 ) $ 2,104,500		$ 177,671 - ( 658,779 ) ( 658,779 ) - - - - - - - - - - - - ($ 481,108 )		($ 1,626,629 ) - 94,341 94,341 - - - - - - - - - - - 1,009 ($ 1,531,279 )		$ 51,181 - - - - - - - - - - - - - - - $ 51,181		($ 247,637 ) - - - - - - - - - - 172,801 - - - - ($ 74,836 )		($ 11,835 ) - - - - - - - - - - - - - - - ($ 11,835 )		$ 19,646,302 1,691,361 ( 511,596 ) 1,179,765 - - ( 812,727 ) - 178,819 19,739 ( 185 ) ( 5,731 ) 94 92 67,857 - $ 20,274,025

The accompanying notes are an integral part of these parent company only financial statements.

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CTCI CORPORATION

PARENT COMPANY ONLY STATEMENTS OF CASH FLOWS

YEARS ENDED DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars)

CASH FLOWS FROM OPERATING ACTIVITIES Profit before tax Adjustments Adjustments to reconcile profit (loss) Depreciation Amortization Impairment loss determined in accordance with IFRS 9 (Gain) loss on financial assets at fair value through profit or loss Gain on disposal of property, plant and equipment Compensation costs for employee stock options Compensation costs for restricted stock Share of profit of associates and joint ventures accounted for using equity method Realized gain from intercompany transactions Interest income Dividend income Gain from lease modification Interest expense Changes in operating assets and liabilities Changes in operating assets Financial assets at fair value through profit or loss - current Contract assets - current Notes receivable Accounts receivable (including related parties) Lease payments receivable Other receivables Other receivables - related parties Prepayments Other current assets Other non-current assets Changes in operating liabilities Contract liabilities - current Notes payable Accounts payable Accounts payable - related parties Other payables Other payables - related parties Current provisions Accrued pension labilities Other current liabilities Cash inflow generated from operations Interest received Interest paid Dividends received Income tax paid Net cash flows from operating activities

YearendedDecember 31 Notes 2025 2024 $ 1,662,988 $ 2,173,242 573,760 571,469 6(26) 99,921 93,651 12(2) 9,304 121,040 6(2) ( 176,539 ) 161,892 ( 122 ) ( 115 ) 6(27) ( 160 ) 14 6(27) ( 6,063 ) ( 38,861 ) 6(7) ( 2,507,784 ) ( 3,017,599 ) ( 2,033 ) ( 2,032 ) ( 518,260 ) ( 440,064 ) ( 45,055 ) ( 8,361 ) 6(9) ( 240 ) ( 95 ) 283,678 197,887 ( 1,577,277 ) ( 1,931,822 ) 3,819,409 ( 847,359 ) 1,633 4,333 ( 7,658,602 ) ( 173,259 ) 15,585 ( 3,152 ) 36,214 ( 1,833 ) ( 22,896 ) 10,066 ( 972,979 ) 953,644 - 645,335 - 209 19,045,133 509,595 24 ( 260 ) ( 753,760 ) 1,941,613 ( 756,557 ) 228,922 745,979 224,951 ( 7,097 ) 8,936 829,944 275,879 ( 20,516 ) ( 71,926 ) 172,321 169,875 12,269,953 1,755,815 515,251 306,797 ( 93,465 ) ( 126,962 ) 2,198,151 2,222,831 ( 319,292 ) ( 219,646 ) 14,570,598 3,938,835

(Continued)

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CTCI CORPORATION

PARENT COMPANY ONLY STATEMENTS OF CASH FLOWS

YEARS ENDED DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars)

CASH FLOWS FROM INVESTING ACTIVITIES Increase in other receivables - related parties Interest received - related parties Proceeds from disposal of financial assets at fair value through other comprehensive income - current Proceeds from disposal of financial assets at amortized cost Acquisition of financial assets at amortized cost Acquisition of property, plant and equipment Proceeds from disposal of property, plant and equipment Increase in investments accounted for using the equity method Proceeds from disposal of investment in associates accounted for using equity method Acquisition of intangible assets Proceeds from capital reduction of associates Increase in refundable deposits (shown in other non- current assets) Net cash flows from (used in) investing activities CASH FLOWS FROM FINANCING ACTIVITIES (Decrease) increase in short-term borrowings Payment of lease liabilities Issuance of bonds payable Repayment of bonds payable Cash dividends paid Proceeds from employee stock options exercised Increase in deposits received Net cash flows (used in) from financing activities Net increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year

YearendedDecember 31 Notes 2025 2024 ($ 1,602,583 ) ($ 302,457 ) 93,350 47,242 - 115,215 7,254,039 - - ( 6,903,554 ) 6(31) ( 88,461 ) ( 70,619 ) 589 327 6(31) ( 825,608 ) ( 358,660 ) - 22 ( 113,829 ) ( 87,955 ) 6(7) 269,994 134,997 ( 313,517 ) ( 4,534 ) 4,673,974 ( 7,429,976 ) 6(30) ( 2,790,000 ) 2,790,000 6(30) ( 546,523 ) ( 535,515 ) 4,991,602 6,283,362 6(16) ( 3,000,000 ) ( 6,000,000 ) 6(24) ( 812,727 ) ( 1,660,258 ) 178,819 298,922 30,403 177,641 ( 1,948,426 ) 1,354,152 17,296,146 ( 2,136,989 ) 9,455,913 11,592,902 $ 26,752,059 $ 9,455,913

The accompanying notes are an integral part of these parent company only financial statements.

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CTCI CORPORATION

NOTES TO THE PARENT COMPANY ONLY FINANCIAL STATEMENTS

YEARS ENDED DECEMBER 31, 2025 AND 2024

(Expressed in thousands of New Taiwan dollars, except as otherwise indicated)

1. HISTORY AND ORGANIZATION

CTCI Corporation (the “Company”) was incorporated as a company limited by shares under the provisions of the Company Law of the Republic of China on April 6, 1979 and commenced its operations on May 1, 1979. The main business activities of the Company are the design, survey, construction and inspection of various engineering and construction projects, plants, machinery and equipment and environmental protection projects. The Company’s shares have been listed and traded on the Taiwan Stock Exchange since May 1993.

1. THE DATE OF AUTHORIZATION FOR ISSUANCE OF THE PARENT COMPANY ONLY FINANCIAL STATEMENTS AND PROCEDURES FOR AUTHORIZATION

These parent company only financial statements were authorized for issuance by the Board of Directors on March 9, 2026.

1. APPLICATION OF NEW STANDARDS, AMENDMENTS AND INTERPRETATIONS

2. (1) Effect of the adoption of new issuances of or amendments to International Financial Reporting Standards (“IFRS[®] ”) Accounting Standards that came into effect as endorsed by the Financial Supervisory Commission (“FSC”)

New standards, interpretations and amendments endorsed by the FSC and became effective from 2025 are as follows:

Effective date by International Accounting New Standards, Interpretations and Amendments Standards Board Amendments to IAS 21, ‘Lack of exchangeability’ January 1, 2025

The above standards and interpretations have no significant impact to the Company’s financial condition and financial performance based on the Company’s assessment.

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(2) Effect of new issuances of or amendments to IFRS Accounting Standards as endorsed by the FSC but

not yet adopted by the Company

New standards, interpretations and amendments endorsed by the FSC effective from 2026 are as follows:

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Effective date by
International Accounting
New Standards, Interpretations and Amendments Standards Board
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New Standards,InterpretationsandAmendments	StandardsBoard
Specific provisions of Amendments to IFRS 9 and IFRS 7, ‘Amendments	January 1, 2026
to the classification and measurement of financial instruments’
Amendments to IFRS 9 and IFRS 7, ‘Contracts referencing nature-	January 1, 2026
dependent electricity’
IFRS 17, ‘Insurance contracts’	January 1, 2023
Amendments to IFRS 17, ‘Insurance contracts’	January 1, 2023
Amendment to IFRS 17, ‘Initial application of IFRS 17 and IFRS 9 –	January 1, 2023
comparative information’
Annual Improvements to IFRS Accounting Standards—Volume 11	January 1, 2026

The above standards and interpretations have no significant impact to the Company’s financial condition and financial performance based on the Company’s assessment.

(3) IFRS Accounting Standards issued by IASB but not yet endorsed by the FSC

New standards, interpretations and amendments issued by IASB but not yet included in the IFRS Accounting Standards as endorsed by the FSC are as follows:

New Standards,Interpretations and Amendments	Effective date by International Accounting Standards Board
Amendments to IFRS 10 and IAS 28, ‘Sale or contribution of assets between an investor and its associate or joint venture’ IFRS 18, ‘Presentation and disclosure in financial statements’ IFRS 19, ‘Subsidiaries without public accountability: disclosures’ Amendments to IAS 21, ‘Translation to a Hyperinflationary Presentation Currency’	To be determined by International Accounting Standards Board January 1, 2027 (Note) January 1, 2027 January 1, 2027

Note ： The FSC has announced in a press release on September 25, 2025 that public companies will apply IFRS 18 starting from the fiscal year 2028. Additionally, entities can choose to adopt IFRS 18 earlier based on their requirements after the FSC endorses IFRS 18.

Except for the following, the above standards and interpretations have no significant impact to the Company’s financial condition and financial performance based on the Company’s assessment. IFRS 18, ‘Presentation and disclosure in financial statements’

IFRS 18, ‘Presentation and disclosure in financial statements’ replaces IAS 1. The standard introduces a defined structure of the statement of profit or loss, disclosure requirements related to management-

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defined performance measures, and enhanced principles on aggregation and disaggregation which apply to the primary financial statements and notes.

4. SUMMARY OF MATERIAL ACCOUNTING POLICIES

The principal accounting policies applied in the preparation of these parent company only financial statements are set out below. These policies have been consistently applied to all the periods presented, unless otherwise stated.

(1) Compliance statement

These parent company only financial statements of the Company have been prepared in accordance with the “Regulations Governing the Preparation of Financial Reports by Securities Issuers”.

• (2) Basis of preparation

• A. Except for the following items, the parent company only financial statements have been prepared under the historical cost convention:

  • (a) Financial assets and financial liabilities (including derivative instruments) at fair value through profit or loss.

  • (b) Financial assets at fair value through other comprehensive income.

  • (c) Defined benefit liabilities recognized based on the net amount of pension fund assets less present value of defined benefit obligation.

• B. The preparation of financial statements in conformity with International Financial Reporting Standards, International Accounting Standards, IFRIC® Interpretations, and SIC® Interpretations that came into effect as endorsed by the FSC (collectively referred herein as the “IFRSs”) requires the use of certain critical accounting estimates. It also requires management to exercise its judgment in the process of applying the Company’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the parent company only financial statements are disclosed in Note 5.

• (3) Foreign currency translation

The parent company only financial statements are presented in New Taiwan Dollars, which is the Company’s functional currency.

• A. Foreign currency transactions and balances

• (a) Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of the transactions or valuation where items are remeasured. Foreign exchange gains and losses resulting from the settlement of such transactions are recognized in profit or loss in the period in which they arise.

• (b) Monetary assets and liabilities denominated in foreign currencies at the period end are retranslated at the exchange rates prevailing at the balance sheet date. Exchange differences arising upon re-translation at the balance sheet date are recognized in profit or loss.

• (c) Non-monetary assets and liabilities denominated in foreign currencies held at fair value through profit or loss are re-translated at the exchange rates prevailing at the balance sheet date; their translation differences are recognized in profit or loss. Non-monetary assets and

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liabilities denominated in foreign currencies held at fair value through other comprehensive income are re-translated at the exchange rates prevailing at the balance sheet date; their translation differences are recognized in other comprehensive income. However, nonmonetary assets and liabilities denominated in foreign currencies that are not measured at fair value are translated using the historical exchange rates at the dates of the initial transactions.

• B. Translation of foreign operations

  • (a) The operating results and financial position of all the entities, associates and joint arrangements that have a functional currency different from the presentation currency are translated into the presentation currency as follows:

    • i. Assets and liabilities for each balance sheet presented are translated at the closing exchange rate at the date of that balance sheet;

    • ii. Income and expenses for each statement of comprehensive income are translated at average exchange rates of that period; and

    • iii. All resulting exchange differences are recognized in other comprehensive income.

  • (b) When a foreign operation partially disposed of or sold is an associate or joint arrangements, exchange differences that were recorded in other comprehensive income are proportionately reclassified to profit or loss as part of the gain or loss on sale. In addition, even when the Company retains partial interest in the former foreign associate or joint arrangements after losing significant influence over the former foreign associate, or losing joint control of the former joint arrangements, such transactions should be accounted for as disposal of all interest in these foreign operations.

• (4) Classification of current and non-current items

• A. As the operating cycle for construction contracts usually exceeds one year, the Company uses the ～

• operating cycle (typically 3 4 years) as its criteria for classifying current and non-current assets and liabilities related to construction contracts. For other assets and liabilities, the criterion is one year.

• B. Assets that meet one of the following criteria are classified as current assets:

  • (a) Assets that are expected to be realised, or are intended to be sold or consumed in the normal operating cycle;

  • (b) Assets held primarily for the purpose of trading;

  • (c) Assets that are expected to be realised within twelve months after the reporting period;

  • (d) Cash and cash equivalents, excluding restricted cash and cash equivalents and those that are to be exchanged or used to settle liabilities for at least twelve months after the reporting period.

The Company classifies all assets that do not meet the above criteria as non-current assets.

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• C. Liabilities that meet one of the following criteria are classified as current liabilities:

• (a) Liabilities that are expected to be settled in the normal operating cycle;

• (b) Liabilities arising primarily from trading activities;

• (c) Liabilities that are due to be settled within twelve months after the reporting period;

• (d) It does not have the right at the end of the reporting period to defer settlement of the liability at least twelve months after the reporting period.

The Company classifies all liabilities that do not meet the above criteria as non-current liabilities.

• (5) Cash and cash equivalents

Cash equivalents refer to short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value. Time deposits that meet the definition above and are held for the purpose of meeting short-term cash commitments in operations are classified as cash equivalents.

• (6) Financial assets at fair value through profit or loss

• A. Financial assets at fair value through profit or loss are financial assets that are not measured at amortized cost or fair value through other comprehensive income.

• B. On a regular way purchase or sale basis, financial assets at fair value through profit or loss are recognized and derecognized using trade date accounting.

• C. At initial recognition, the Company measures the financial assets at fair value and recognizes the transaction costs in profit or loss. The Company subsequently measures the financial assets at fair value, and recognizes the gain or loss in profit or loss.

• D. The Company recognizes the dividend income when the right to receive payment is established, future economic benefits associated with the dividend will flow to the Company and the amount of the dividend can be measured reliably.

• (7) Financial assets at fair value through other comprehensive income

• A. Financial assets at fair value through other comprehensive income comprise equity securities which are not held for trading, and for which the Company has made an irrevocable election at initial recognition to recognize changes in fair value in other comprehensive income and debt instruments which meet all of the following criteria:

  • (a) The objective of the Company’s business model is achieved both by collecting contractual cash flows and selling financial assets; and

  • (b) The assets’ contractual cash flows represent solely payments of principal and interest.

• B. On a regular way purchase or sale basis, financial assets at fair value through other comprehensive income are recognized and derecognized using trade date accounting.

• C. At initial recognition, the Company measures the financial assets at fair value plus transaction costs. The Company subsequently measures the financial assets at fair value:

  • (a) The changes in fair value of equity investments that were recognized in other comprehensive income are reclassified to retained earnings and are not reclassified to profit or loss following the derecognition of the investment. Dividends are recognized as revenue when the right to

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receive payment is established, future economic benefits associated with the dividend will flow to the Company and the amount of the dividend can be measured reliably.

• (b) Except for the recognition of impairment loss, interest income and gain or loss on foreign exchange which are recognized in profit or loss, the changes in fair value of debt instruments are taken through other comprehensive income. When the financial asset is derecognized, the cumulative gain or loss previously recognized in other comprehensive income is reclassified from equity to profit or loss.

(8) Financial assets at amortized cost

• A. Financial assets at amortized cost are those that meet all of the following criteria:

• (a) The objective of the Company’s business model is achieved by collecting contractual cash flows.

• (b) The assets’ contractual cash flows represent solely payments of principal and interest.

• B. On a regular way purchase or sale basis, financial assets at amortized cost are recognized and derecognized using trade date accounting.

• C. At initial recognition, the Company measures the financial assets at fair value plus transaction costs. Interest income from these financial assets is included in finance income using the effective interest method. A gain or loss is recognized in profit or loss when the asset is derecognized or impaired.

• D. The Company’s time deposits which do not fall under cash equivalents are those with a short maturity period and are measured at initial investment amount as the effect of discounting is immaterial.

(9) Impairment of financial assets

For debt instruments measured at fair value through other comprehensive income and financial assets at amortized cost, at each reporting date, the Company recognizes the impairment provision for 12 months expected credit losses if there has not been a significant increase in credit risk since initial recognition or recognizes the impairment provision for the lifetime expected credit losses (ECLs) if such credit risk has increased since initial recognition after taking into consideration all reasonable and verifiable information that includes forecasts. On the other hand, for accounts receivable or contract assets that do not contain a significant financing component, the Company recognizes the impairment provision for lifetime ECLs.

(10) Derecognition of financial assets

The Company derecognizes a financial asset when one of the following conditions is met:

• A. The contractual rights to receive the cash flows from the financial asset expire.

• B. The contractual rights to receive cash flows of the financial asset have been transferred and the Company has transferred substantially all risks and rewards of ownership of the financial asset.

• C. The contractual rights to receive cash flows of the financial asset have been transferred; however, the Company has not retained control of the financial asset.

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• －

• (11) Leasing arrangements (lessor) lease receivables/operating leases

• Based on the terms of a lease contract, a lease is classified as a finance lease if the lessee assumes substantially all the risks and rewards incidental to ownership of the leased asset.

• A. At commencement of the lease term, the lessor should record a finance lease in the balance sheet as ‘lease receivables’ at an amount equal to the gross investment in the lease (including initial direct costs). The difference between gross lease receivable and the present value of the receivable is recognized as ‘unearned finance income of finance lease’.

• B. The lessor should allocate finance income over the lease term based on a systematic and rational basis reflecting a constant periodic rate of return on the lessor’s net investment in the finance lease.

• C. Lease payments (excluding costs for services) during the lease term are applied against the gross investment in the lease to reduce both the principal and the unearned finance income.

• (12) Investments accounted for using the equity method-subsidiaries and associates

• A. Subsidiaries are all entities (including structured entities) controlled by the Company. The Company controls an entity when the Company is exposed, or has rights, to variable returns from its involvement with the entity and has the ability to affect those returns through its power over the entity.

• B. Inter-company transactions, balances and unrealized gains or losses on transactions between the Company and subsidiaries are eliminated. Accounting policies of subsidiaries have been adjusted where necessary to ensure consistency with the policies adopted by the Company.

• C. The Company’s share of its subsidiaries’ post-acquisition profits or losses is recognized in profit or loss, and its share of post-acquisition movements in other comprehensive income is recognize in other comprehensive income. When the Company’s share of losses in a subsidiary equals or exceeds its interest in the subsidiary, the Company continues to recognize the losses in proportion to the ownership.

• D. Changes in a parent’s ownership interest in a subsidiary that do not result in the parent losing control of the subsidiary (transactions with non-controlling interests) are accounted for as equity transactions, i.e. transactions with owners in their capacity as owners. Any difference between the amount by which the non-controlling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity.

• E. Associates are all entities over which the Company has significant influence but not control. In general, it is presumed that the investor has significant influence, if an investor holds, directly or indirectly 20 percent or more of the voting power of the investee. Investments in associates are accounted for using the equity method and are initially recognized at cost.

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• F. The Company’s share of its associates’ post-acquisition profits or losses is recognized in profit or loss, and its share of post-acquisition movements in other comprehensive income is recognized in other comprehensive income. When the Company’s share of losses in an associate equals or exceeds its interest in the associate, including any other unsecured receivables, the Company does not recognize further losses, unless it has incurred legal or constructive obligations or made payments on behalf of the associate.

• G. When changes in an associate’s equity do not arise from profit or loss or other comprehensive income of the associate and such changes do not affect the Company’s ownership percentage of the associate, the Company recognizes change in ownership interests in the associate in ‘capital surplus’ in proportion to its ownership.

• H. Unrealized gains on transactions between the Company and its associates are eliminated to the extent of the Company’s interest in the associates. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the asset transferred. Accounting policies of associates have been adjusted where necessary to ensure consistency with the policies adopted by the Company.

• I. In the case that an associate issues new shares and the Company does not subscribe or acquire new shares proportionately, which results in a change in the Company’s ownership percentage of the associate but maintains significant influence on the associate, then ‘capital surplus’ and ‘investments accounted for using the equity method’ shall be adjusted for the increase or decrease of its share of equity interest. If the above condition causes a decrease in the Company’s ownership percentage of the associate, in addition to the above adjustment, the amounts previously recognized in other comprehensive income in relation to the associate are reclassified to profit or loss proportionately on the same basis as would be required if the relevant assets or liabilities were disposed of.

• J. When the Company disposes its investment in an associate and loses significant influence over this associate, the amounts previously recognized in other comprehensive income in relation to the associate, are reclassified to profit or loss, on the same basis as would be required if the relevant assets or liabilities were disposed of. If it retains significant influence over this associate, the amounts previously recognized in other comprehensive income in relation to the associate are reclassified to profit or loss proportionately in accordance with the aforementioned approach.

• K. Pursuant to the Rules Governing the Preparation of Financial Statements by Securities Issuers, profit (loss) of the current period and other comprehensive income in the parent company only financial statements shall equal to the amount attributable to owners of the parent in the consolidated financial statements. Owners’ equity in the parent company only financial statements shall equal to equity attributable to owners of the parent in the consolidated financial statements.

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(13) Property, plant and equipment

• A. Property, plant and equipment are initially recorded at cost. Borrowing costs incurred during the construction period are capitalized.

• B. Subsequent costs are included in the asset’s carrying amount or recognized as a separate asset, as appropriate, only when it is probable that future economic benefits associated with the item will flow to the Company and the cost of the item can be measured reliably. The carrying amount of the replaced part is derecognized. All other repairs and maintenance are charged to profit or loss during the financial period in which they are incurred.

• C. Land is not depreciated. Other property, plant and equipment apply cost model and are depreciated using the straight-line method to allocate their cost over their estimated useful lives. Each part of an item of property, plant, and equipment with a cost that is significant in relation to the total cost of the item must be depreciated separately.

• D. The assets’ residual values, useful lives and depreciation methods are reviewed, and adjusted if appropriate, at each financial year-end. If expectations for the assets’ residual values and useful lives differ from previous estimates or the patterns of consumption of the assets’ future economic benefits embodied in the assets have changed significantly, any change is accounted for as a change in estimate under IAS 8, “Accounting Policies, Changes in Accounting Estimates and Errors”, from the date of the change. The estimated useful lives of property, plant and equipment are as follows:

Buildings and structures 35 ~ 50 years

• Machinery 3 ~ 5 years

• Transportation equipment 3 ~ 10 years

Office equipment 2 ~ 7 years Other equipment 3 ~ 20 years

• (14) Leasing arrangements (lessee) － right-of-use assets/lease liabilities

• A. Leases are recognized as a right-of-use asset and a corresponding lease liability at the date at which the leased asset is available for use by the Company. For short-term leases or leases of low-value assets, lease payments are recognized as an expense on a straight-line basis over the lease term.

• B. Lease liabilities include the net present value of the remaining lease payments at the commencement date, discounted using the incremental borrowing interest rate. Lease payments are comprised of the fixed payments, less any lease incentives receivable. The Company subsequently measures the lease liability at amortized cost using the interest method and recognizes interest expense over the lease term. The lease liability is remeasured and the amount of remeasurement is recognized as an adjustment to the right-of-use asset when there are changes in the lease term or lease payments and such changes do not arise from contract modifications.

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• C. At the commencement date, the right-of-use asset is stated at cost. The cost is the amount of the initial measurement of lease liability. The right-of-use asset is measured subsequently using the cost model and is depreciated from the commencement date to the earlier of the end of the asset’s useful life or the end of the lease term. When the lease liability is remeasured, the amount of remeasurement is recognized as an adjustment to the right-of-use asset.

(15) Intangible assets

• Computer software is stated at cost and amortized on a straight-line basis over its estimated useful life of 3 to 5 years.

(16) Impairment of non-financial assets

• The Company assesses at each balance sheet date the recoverable amounts of those assets where there is an indication that they are impaired. An impairment loss is recognized for the amount by which the asset’s carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset’s fair value less costs to sell or value in use. When the circumstances or reasons for recognizing impairment loss for an asset in prior years no longer exist or diminish, the impairment loss shall be reversed to the extent of the loss previously recognized in profit or loss.

• (17) Borrowings

• Borrowings comprise long-term and short-term bank borrowings. Borrowings are recognized initially at fair value, net of transaction costs incurred. Borrowings are subsequently stated at amortized cost; any difference between the proceeds (net of transaction costs) and the redemption value is recognized in profit or loss over the period of the borrowings using the effective interest method.

(18) Notes and accounts payable

• A. Accounts payable are liabilities for purchases of raw materials, goods or services and notes payable are those resulting from operating and non-operating activities.

• B. The short-term accounts and notes payable without bearing interest are subsequently measured at initial invoice amount as the effect of discounting is immaterial.

(19) Financial liabilities at fair value through profit or loss

• A. Financial liabilities are classified in this category of held for trading if acquired principally for the purpose of repurchasing in the short-term. Derivatives are also categorized as financial liabilities held for trading unless they are designated as hedges.

• B. At initial recognition, the Company measures the financial liabilities at fair value. All related transaction costs are recognized in profit or loss. The Company subsequently measures these financial liabilities at fair value with any gain or loss recognized in profit or loss.

(20) Bonds payable

• Ordinary corporate bonds issued by the Company are initially recognized at fair value less transaction costs. Any difference between the proceeds (net of transaction costs) and the redemption value is presented as an addition to or deduction from bonds payable, which is amortized to profit or loss over the period of bond circulation using the effective interest method as an adjustment to

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‘finance costs’.

(21) Convertible bonds payable

• Convertible bonds issued by the Company contain conversion options (that is, the bondholders have the right to convert the bonds into the Company’s common shares by exchanging a fixed amount of cash for a fixed number of common shares), call options and put options. The Company classifies the bonds payable upon issuance as a financial asset, a financial liability or an equity instrument in accordance with the contract terms. They are accounted for as follows:

• A. The embedded call options and put options are recognized initially at net fair value as ‘financial assets or financial liabilities at fair value through profit or loss’. They are subsequently remeasured and stated at fair value on each balance sheet date; the gain or loss is recognized as ‘gain or loss on valuation of financial assets or financial liabilities at fair value through profit or loss’.

• B. The host contracts of bonds are initially recognized at fair value. Any difference between the initial recognition and the redemption value is accounted for as the premium or discount on bonds payable and subsequently is amortized in profit or loss as an adjustment to ‘finance costs ’ over the period of circulation using the effective interest method.

• C. The embedded conversion options which meet the definition of an equity instrument are initially recognized in ‘capital surplus—share options’ at the residual amount of total issue price less the amount of financial assets or financial liabilities at fair value through profit or loss and bonds payable as stated above. Conversion options are not subsequently remeasured.

• D. Any transaction costs directly attributable to the issuance are allocated to each liability or equity component in proportion to the initial carrying amount of each abovementioned item.

• E. When bondholders exercise conversion options, the liability component of the bonds (including bonds payable and ‘financial assets or financial liabilities at fair value through profit or loss’) shall be remeasured on the conversion date. The issuance cost of converted common shares is the total carrying amount of the abovementioned liability component and ‘capital surplus—share options’.

(22) Non-hedging derivatives

• Non-hedging derivatives are initially recognized at fair value on the date a derivative contract is entered into and recorded as financial assets or financial liabilities at fair value through profit or loss. They are subsequently remeasured at fair value and the gains or losses are recognized in profit or loss.

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(23) Provisions

Provisions (onerous contracts) are recognized when the Group has a present legal or constructive obligation as a result of past events, and it is probable that an outflow of economic resources will be required to settle the obligation and the amount of the obligation can be reliably estimated. Provisions are measured at the present value of the expenditures expected to be required to settle the obligation on the balance sheet date.

(24) Employee benefits

• A. Short-term employee benefits

Short-term employee benefits are measured at the undiscounted amount of the benefits expected to be paid in respect of service rendered by employees in a period and should be recognized as expenses in that period when the employees render service.

• B. Pensions

• (a) Defined contribution plan

For the defined contribution plan, the contributions are recognized as pension expenses when they are due on an accrual basis. Prepaid contributions are recognized as an asset to the extent of a cash refund or a reduction in the future payments.

  - (b) Defined benefit plan

     - i. Net obligation under a defined benefit plan is defined as the present value of an amount of pension benefits that employees will receive on retirement for their services with the Company in current period or prior periods. The rate used to discount is determined by using interest rates of high-quality corporate bonds that are denominated in the currency in which the benefits will be paid, and that have terms to maturity approximating the terms of related pension liability; when there is no deep market in high-quality corporate bonds, the Company uses interest rates of government bonds (at the balance sheet date) instead.

     - ii. Remeasurements arising on defined benefit plan are recognized in other comprehensive income in the period in which they arise and are recorded as retained earnings.

     - iii. Past service costs are recognized immediately in profit or loss.

• C. Employees’ compensation and directors’ remuneration

  • Employees’ compensation and directors’ remuneration are recognized as expenses and liabilities, provided that such recognition is required under legal obligation or constructive obligation and those amounts can be reliably estimated. Any difference between the resolved amounts and the subsequently actual distributed amounts is accounted for as changes in estimates.

• (25) Employee share based payment

• A. For the equity-settled share-based payment arrangements, the employee services received are measured at the fair value of the equity instruments granted at the grant date, and are recognized as compensation cost over the vesting period, with a corresponding adjustment to equity. The fair value of the equity instruments granted shall reflect the impact of market vesting conditions and non-market vesting conditions. Compensation cost is subject to adjustment based on the

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service conditions that are expected to be satisfied and the estimates of the number of equity instruments that are expected to vest under the non-market vesting conditions at each balance sheet date. Ultimately, the amount of compensation cost recognized is based on the number of equity instruments that eventually vest.

• B. Restricted stocks

  • (a) Restricted stocks issued to employees are measured at the fair value of the equity instruments granted at the grant date, and are recognized as compensation cost over the vesting period.

  • (b) For restricted stocks where those stocks do not restrict distribution of dividends to employees and employees are not required to return the dividends received if they resign during the vesting period, the Company recognizes the fair value of the dividends received by the employees who are expected to resign during the vesting period as compensation cost at the date of dividends declared.

• (26) Income tax

• A. The tax expense for the period comprises current and deferred tax. Tax is recognized in profit or loss, except to the extent that it relates to items recognized in other comprehensive income or items recognized directly in equity, in which cases the tax is recognized in other comprehensive income or equity.

• B. The current income tax charge is calculated on the basis of the tax laws enacted or substantively enacted at the balance sheet date in the countries where the Company operates and generate taxable income. Management periodically evaluates positions taken in tax returns with respect to situations in accordance with applicable tax regulations. It establishes provisions where appropriate based on the amounts expected to be paid to the tax authorities. An additional tax is levied on the unappropriated retained earnings and is recorded as income tax expense in the year the stockholders resolve to retain the earnings.

• C. Deferred tax assets are recognized only to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. At each balance sheet date, unrecognized and recognized deferred tax assets are reassessed.

• D. Deferred tax assets are recognized only to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. At each balance sheet date, unrecognized and recognized deferred tax assets are reassessed.

• E. Current tax assets and liabilities are offset and the net amount reported in the balance sheet when there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis or realize the asset and settle the liability simultaneously. Deferred tax assets and liabilities are offset on the balance sheet when the entity has the legally enforceable right to offset current tax assets against current tax liabilities and they are levied by the same taxation authority on either the same entity or different entities that intend to settle on a net basis or realize the asset and settle the liability simultaneously.

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• F. A deferred tax asset shall be recognized for the carryforward of unused tax credits resulting from acquisitions of equipment or technology, research and development expenditures to the extent that it is possible that future taxable profit will be available against which the unused tax credits can be utilized.

• (27) Share capital

• A. Ordinary shares are classified as equity. Incremental costs directly attributable to the issue of new shares or stock options are shown in equity as a deduction, net of tax, from the proceeds.

• B. Where the Company repurchases the Company’s equity share capital that has been issued, the consideration paid, including any directly attributable incremental costs (net of income taxes) is deducted from equity attributable to the Company’s equity holders. Where such shares are subsequently reissued, the difference between their carrying amount and any consideration received, net of any directly attributable incremental transaction costs and the related income tax effects, is included in equity attributable to the Company’s equity holders.

• (28) Dividends

Dividends are recorded in the Company’s financial statements in the period in which they are approved by the Company’s shareholders. Cash dividends are recorded as liabilities; stock dividends are recorded as stock dividends to be distributed and are reclassified to ordinary shares on the effective date of new shares issuance.

• (29) Revenue recognition

• A. Construction Engineering Revenue

  • (a) The Company provides engineering construction related services. Revenue from providing services is recognized in the accounting period in which the services are rendered. For fixedprice contracts, revenue is recognized based on the actual service provided to the end of the reporting period as a proportion of the total services to be provided. This is determined based on the actual costs incurred relative to the total expected costs. The customer pays at the time specified in the payment schedule. If the services rendered exceed the payment, a contract asset is recognized. If the payments exceed the services rendered, a contract liability is recognized.

  • (b) Some contracts include sales and installation services of equipment. The equipment and the installation services provided by the Company are not distinct and are identified to be one performance obligation satisfied over time since the installation services involve significant customization and modification. The Company recognizes revenue on the basis of costs incurred relative to the total expected costs of that performance obligation.

  • (c) The Company recognizes revenue to the extent that it is highly probable that the revenue will not be reversed and can be measured reliably, including the original amount agreed in the contract, plus any contract-related amendments. When a contract modification is approved in writing, orally, or in accordance with customary business practices, the impact of the amendment to the stage of completion or contract price is considered, and the status of the

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contract is reassessed on an accrual basis at the balance sheet date.

• (d) The Company’s estimate about revenue, costs and progress towards complete satisfaction of a performance obligation is subject to a revision whenever there is a change in circumstances. Any increase or decrease in revenue or costs due to an estimate revision is assessed periodically by the management and reflected in profit or loss.

• B. Service Revenue

The Company provides operation service of water resource treatment that is charged at a fixed rate. The Company recognizes revenue and accounts receivable at the amount to which it has the right to invoice when monthly bills to customers are issued.

5. CRITICAL ACCOUNTING JUDGEMENTS, ESTIMATES AND KEY SOURCES OF ASSUMPTION UNCERTAINTY

The preparation of these parent company only financial statements requires management to make critical judgements in applying the Company’s accounting policies and make critical assumptions and estimates concerning future events. Assumptions and estimates may differ from the actual results and are continually evaluated and adjusted based on historical experience and other factors. Such assumptions and estimates have a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within the next financial year; and the related information is addressed below:

(1) Critical judgements in applying the Company’s accounting policies

• None.

• (2) Critical accounting estimates and assumptions

• Revenue recognition

The Company relies on the project condition and objective factors to estimate total cost. The revenue is recognized based on the percentage of input cost to the estimated total cost, and the reasonableness of estimates is reviewed regularly. The estimated total cost will be affected by industry environment transition and construction status to adjust the revenue recognition amount.

1. DETAILS OF SIGNIFICANT ACCOUNTS

(1) Cash and cash equivalents

TAILS OF SIGNIFICANT ACCOUNTS Cash and cash equivalents
Cash on hand and revolving funds Checking accounts and demand deposits Time deposits	December31,2025 41,302 $ 9,828,338 16,882,419 26,752,059 $	December31,2024
		42,076 $ 8,009,613 1,404,224
		9,455,913 $

• A. The Company transacts with a variety of financial institutions all with high credit quality to disperse credit risk, so it expects that the probability of counterparty default is remote.

• B. Details of the Company’s cash and cash equivalents pledged to others as collateral are provided in Note 8.

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(2) Financial assets and liabilities at fair value through profit or loss – current

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----- Start of picture text -----

Items December 31, 2025 December 31, 2024
Current items:
Financial assets mandatorily measured
at fair value through profit or loss
Beneficiary certificates $ 3,720,597 $ 2,384,215
Derivatives 150,202 5,347
-
Equity securities 77,558
3,948,357 2,389,562
Valuation adjustment 57,139 26,564
$ 4,005,496 $ 2,416,126
Financial liabilities mandatorily measured
at fair value through profit or loss
Derivatives $ 107,107 $ 138,931
Convertible bonds - call/put options 51,599 83,400
$ 158,706 $ 222,331
----- End of picture text -----

• A. Amounts recognized in profit or loss in relation to financial assets at fair value through profit or loss are listed below:

loss are listed below:
		For the years ended			December 31,
		2025			2024
Financial assets mandatorily measured at fair
value through profit or loss
Beneficiary certificates	$	54,664		$	68,132
Derivatives		341,492			92,141
Equity securities		9,263			2,470
	$	405,419		$	162,743
Financial liabilities mandatorily measured at
fair value through profit or loss
Derivatives	($	260,679)	($		268,835)
Convertible bonds - call/put options		31,799	(		55,800)
	($	228,880)	($		324,635)

~31~

• B. The Company entered into contracts relating to derivative financial assets and liabilities which were not accounted for under hedge accounting. The information is listed below:

Foreign exchange contract-buy (1 item) Non-delivery foreign exchange contract-buy (3 items) Non-delivery foreign exchange contract-sell (20 items) Foreign exchange swap contract (6 items) Merchandise exchange contract (35 items)	December31,2025	December31,2025
	Contract Amount (notionalprincipal) 500 EUR 3,000 USD 58,400 USD 58,000 USD 75,846 USD	Contract Period
		2025.12.30~2026.01.20 2025.04.18~2026.04.28 2025.08.22~2026.07.20 2025.11.20~2026.06.26 2025.03.26~2026.12.16

Foreign exchange contract-sell (12 items) Non-delivery foreign exchange contract-buy (8 items) Non-delivery foreign exchange contract-sell (4 items) Non-delivery foreign exchange contract-sell (1 items) Foreign exchange swap contract (13 items) Merchandise exchange contract (20 items)	December 31, 2024	December 31, 2024
	Contract Amount (notionalprincipal) 10,874 USD 2,479,309 JPY 664,662 JPY 2,000 USD 77,000 USD 20,414 USD	Contract Period
		2024.12.04~2027.05.12 2024.09.24~2025.09.29 2024.11.29~2025.09.29 2024.10.07~2025.01.09 2024.09.02~2025.05.02 2024.04.10~2025.07.16

The Company entered into contracts relating to derivative financial products to hedge exchange rate risk of import or export proceeds and price fluctuation risk of materials (copper). However, these contracts are not accounted for under hedge accounting.

(3) Financial assets at fair value through other comprehensive income

Items Current items: Equity instruments Listed stocks Valuation adjustment ( Non-current items: Equity instruments Unlisted stocks Valuation adjustment (	December31,2025 71,395 $ 9,631) 61,764 $ 1,362,819 $ 694,087) ( 668,732 $	December31,2024
		71,395 $ 13,681
		85,076 $
		1,362,819 $ 830,550)
		532,269 $

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• A. The Company has elected to classify investments that are considered to be strategic investments or steady dividend income as financial assets at fair value through other comprehensive income.

• B. In order to enhance the efficiency of capital utilization, the Company sold $115,215 of shares at fair value which resulted in cumulative gain on disposal of $74,883 during the year ended December 31, 2024.

• C. Amounts recognized in profit or loss and other comprehensive income in relation to the financial assets at fair value through other comprehensive income are listed below:

==> picture [487 x 299] intentionally omitted <==

----- Start of picture text -----

For the years ended December 31,
2025 2024
Equity instruments at fair value through other
comprehensive income
Fair value change recognized in other
comprehensive income $ 113,151 ($ 126,915)
Cumulative gains reclassified to
-
retained earnings due to derecognition $ $ 74,883
Dividend income recognized in profit or loss
Held at end of year $ 43,262 $ 8,361
- -
Derecognized during the year
$ 43,262 $ 8,361
Financial assets at amortized cost
Items December 31, 2025 December 31, 2024
Current items:
Time deposits with maturity over three months $ - $ 7,254,039
Non-current items:
Corporate bonds $ 100,000 $ 100,000
Pledged time deposits 300 300
$ 100,300 $ 100,300
----- End of picture text -----

(4) Financial assets at amortized cost

As at December 31, 2025 and 2024, without taking into account any collateral held or other credit enhancements, the maximum exposure to credit risk in respect of the amount that best represents the financial assets at amortized cost held by the Company were $100,300 and $7,354,339, respectively.

(5) Notes and accounts receivable

Notes receivable Accounts receivable Lease payments receivable Less: Allowance for uncollectible accounts (	December31,2025 - $ 10,896,748 - 126,539) ( 10,770,209 $	December31,2024 1,633 $ 3,225,284 94,839 124,209) 3,197,547 $

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• A. The ageing analysis of accounts receivable and notes receivable is as follows:

Not past due Up to 30 days 31 to 90 days 91 to 180 days Over 181 days	December31,2025 10,737,010 $ 29,350 2,993 3,081 124,314 10,896,748 $	December31,2024
		3,095,754 $ 341 8,293 - 122,529
		3,226,917 $

The above ageing analysis was based on past due date.

• B. As of December 31, 2025, December 31, 2024, and January 1, 2024, the balances of receivables (including notes receivable) from contracts with customers amounted to $10,896,748, $3,226,917, and $3,037,269, respectively.

• C. As of December 31, 2025 and 2024, without taking into account any collateral held or other credit enhancements, the maximum exposure to credit risk in respect of the amount that best represents the receivables (including notes receivable) held by the Company was the carrying amount.

• D. Information relating to credit risk is provided in Note 12(2) C(b).

(6) Prepayments

Prepayments
Prepayments for materials Prepayments for construction in progress Prepayments for insurance premiums Others	December31,2025 924,781 $ 1,545,704 1,099,796 284,045 3,854,326 $	December31,2024 1,514,218 $ 834,749 200,200 332,564
		2,881,731 $

(7) Investments accounted for using the equity method

			2025			2024
At January 1		$	17,994,718		$	15,284,132
Addition of investments accounted
for using equity method			3,221,409			1,816,814
Disposal of investments accounted
for using equity method			-	(		22)
Share of profit of investments
accounted for using equity method			2,507,784			3,017,599
Earnings distribution of investments
accounted for using equity method	(		2,153,096)	(		2,214,470)
Capital reduction of associates	(		269,994)	(		134,997)
Changes in capital surplus			87,663			12,253
Changes in other equity items	(		560,712)			213,409
At December 31		$	20,827,772		$	17,994,718

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			December31,2025			December31,2024
Investmentsaccountedforusing equitymethod
Subsidiaries
CTCI Smart Engineering Corporation		$	643,542		$	473,080
CTCI Advanced Systems Inc.			470,405			411,900
CTCI Development Corp.			536,592			1,808,240
CTCI Investment Corp.			950,474			909,794
ECOVE Environment Corp.			3,707,541			3,552,096
CTCI Engineering & Construction Sdn. Bhd.			156,514			145,007
CTCI USA Holding Inc.			530,416			436,280
MASTEQ Engineering Sdn. Bhd.			104,455			148,283
CTCI - HDEC (Chungli) Corp.			881,740			891,107
PT CTCI International Indonesia			633,809			522,802
CTME S. A. DE C. V.			6,339			5,873
CTCI STSP Water Resouces Corp.			2,447,133			10,018
CTCI (Thailand) Co., Ltd.			121,783			134,166
CTCI Machinery Corp.			581,954			696,271
Sinogal-waste Services Co., Ltd.			41,545			75,944
CTCI Overseas (BVI) Co., Ltd.			6,807,282			6,347,754
CTCI Singapore Pte.Ltd.			27,786			-
Associates
Blue Whale Water Technology Co., Ltd.			442,908			425,352
Pan Asia Corp.			533,329			463,284
EVER ECOVE Corp.			623,550			609,692
HDEC-CTCI (Linhai) Corp.			122,800			373,096
Bao Ding Reclaimed Water Co., Ltd.			306,775			292,813
ECOVE Chiayi Energy Corp.			315,418			253,973
		$	20,994,090		$	18,986,825
Other non-current liabilities
Subsidiaries
CTCI Arabia Ltd.	($		120,263)	($		96,312)
CTCI Singapore Pte. Ltd.			-	(		830,683)
CCJV P1 Engineering & Construction Sdn. Bhd.	(		46,055)	(		65,112)
	($		166,318)	($		992,107)

A. Associates

The carrying amount of the Company’s interests in all individually immaterial associates and the Company’s share of the operating results are summarized below:

As of December 31, 2025 and 2024, the carrying amount of the Company’s individually immaterial associates amounted to $2,344,780 and $2,418,210, respectively.

Total comprehensive income	For the years endedDecember31,	For the years endedDecember31,
	2025 382,054 $	2024
		285,909 $

~35~

• B. For information on the Company’s subsidiaries, refer to Note 4(3) in the Company’s consolidated financial statements for the year ended December 31, 2025.

• C. The total investment profit or loss and other comprehensive income accounted for under equity method in Pan Asia Corp., Blue Whale Water Technology Co., Ltd., EVER ECOVE Corporation, HDEC-CTCI (Linhai) Corporation, Bao Ding Reclaimed Water Co., Ltd., PT CTCI International Indonesia, Jing Ding Green Energy Technology Co., Ltd. indirectly invested by ECOVE Environment Corp. and certain subsidiaries indirectly invested by CTCI Overseas (BVI) Corp. amounted to $608,584 for the year ended December 31, 2025, which was recognized based solely on the audit reports of other independent auditors.

• D. The total investment profit or loss and other comprehensive income accounted for under equity method in Pan Asia Corp., Blue Whale Water Technology Co., Ltd., EVER ECOVE Corporation, HDEC-CTCI (Linhai) Corporation, Bao Ding Reclaimed Water Co., Ltd., Jing Ding Green Energy Technology Co., Ltd. indirectly invested by ECOVE Environment Corp. and certain subsidiaries indirectly invested by CTCI Overseas (BVI) Corp. amounted to $1,800,686 for the year ended December 31, 2024, which was recognized based solely on the audit reports of other independent auditors.

• E. The number of shares and amount that the Company additionally invested in the subsidiaries and associates for the years ended December 31, 2025 and 2024 are as follows:

• For the year ended December 31, 2025

For the year ended December 31, 2025
Investees	Investmentdate	Numberofshares		Bookvalue
CTCI STSP Water Resouces Corp. CTCI Singapore Pte.Ltd. For the year ended December 31, 2024 Investees	April 2025 November 2025 Investmentdate	77,000,000 26,500,000 Numberofshares		2,395,801 $ 825,608 3,221,409 $ Bookvalue
CTCI Arabia Ltd CTCI-HDEC (Chungli) Corp. Bao Ding Reclaimed Water Co., Ltd. Bao Ding Reclaimed Water Co., Ltd. Bao Ding Reclaimed Water Co., Ltd. CTCI STSP Water Resouces Corp. ECOVE Chiayi Energy Corp.	February 2024 August 2024 March 2024 August 2024 December 2024 September 2024 December 2024	34,500 5,406,000 1,460,000 4,000,000 4,000,000 1,000,000 20,000,000		1,458,154 $ 54,060 14,600 40,000 40,000 10,000 200,000 1,816,814 $

• F. In May 2025, the shareholders of the associate, HDEC-CTCI (Linhai) Corp., resolved to reduce its capital and returned cash amounting to $600,000. The proceeds from capital reduction in proportion to the Company’s shareholding ratio amounted to $269,994. As of December 31, 2025, the Company has received $269,994. The capital reduction ratio was 83% while the equity interest percentage remained unchanged.

~36~

(8) Property, plant and equipment

AtJanuary1,2025 Cost Accumulated depreciation 2025 Opening net book amount Additions Disposals Depreciation charge Reclassifications Closing net book amount At December31,2025 Cost Accumulated depreciation	Buildings Land and structures Machinery 116,229 $ 117,848 $ 293,221 $ - 79,910) ( 194,213) ( ( 116,229 $ 37,938 $ 99,008 $ 116,229 $ 37,938 $ 99,008 $ - - 42,094 - - 467) ( - 3,089) ( 43,332) ( - 19,059 - 116,229 $ 53,908 $ 97,303 $ 116,229 $ 136,907 $ 330,184 $ - 82,999) ( 232,881) ( ( 116,229 $ 53,908 $ 97,303 $	Transportation Office equipment equipment 11,590 $ 49,532 $ 11,590) 49,472) ( - $ 60 $ - $ 60 $ - 6,270 - - - 1,453) ( - 6,207 ( - $ 11,084 $ 11,590 $ 61,890 $ 11,590) 50,806) ( - $ 11,084 $	Unfinished construction Others Total 90,210 $ 142,713 $ 821,343 $ - 116,729) ( 451,914) ( 90,210 $ 25,984 $ 369,429 $ 90,210 $ 25,984 $ 369,429 $ 26,816 1,838 77,018 - - 467) ( - 5,687) ( 53,561) ( 25,266) - - 91,760 $ 22,135 $ 392,419 $ 91,760 $ 144,323 $ 892,883 $ - 122,188) ( 500,464) ( 91,760 $ 22,135 $ 392,419 $

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==> picture [734 x 266] intentionally omitted <==

----- Start of picture text -----

Buildings Transportation Office Unfinished
Land and structures Machinery equipment equipment construction Others Total
At January 1, 2024
Cost $ 116,229 $ 117,577 $ 383,162 $ 11,957 $ 53,160 $ 77,961 $ 144,026 $ 904,072
Accumulated depreciation - ( 77,651) ( 303,109) ( 11,957) ( 53,160) - ( 114,317) ( 560,194)
$ 116,229 $ 39,926 $ 80,053 $ - $ - $ 77,961 $ 29,709 $ 343,878
2024
- -
Opening net book amount $ 116,229 $ 39,926 $ 80,053 $ $ $ 77,961 $ 29,709 $ 343,878
Additions - 271 50,830 - 74 15,334 - 66,509
- - - - - -
Disposals ( 212) ( 212)
- - -
Depreciation charge ( 2,259) ( 33,343) ( 14) ( 5,130) ( 40,746)
Reclassifications - - 1,680 - - ( 3,085) 1,405 -
Closing net book amount $ 116,229 $ 37,938 $ 99,008 $ - $ 60 $ 90,210 $ 25,984 $ 369,429
At December 31, 2024
Cost $ 116,229 $ 117,848 $ 293,221 $ 11,590 $ 49,532 $ 90,210 $ 142,713 $ 821,343
Accumulated depreciation - ( 79,910) ( 194,213) ( 11,590) ( 49,472) - ( 116,729) ( 451,914)
$ 116,229 $ 37,938 $ 99,008 $ - $ 60 $ 90,210 $ 25,984 $ 369,429
----- End of picture text -----

A. No borrowing costs attributable to property, plant and equipment were capitalized for the years ended December 31, 2025 and 2024. B. No property, plant and equipment was pledged to others as collateral for the years ended December 31, 2025 and 2024.

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(9) Leasing arrangements-lessee

• A. The Company leases various assets including land, buildings, machinery and equipment, business vehicles, multifunction printers, etc. Rental contracts are typically made for periods of 1 to 10 years. Lease terms are negotiated on an individual basis and contain a wide range of different terms and conditions. The lease agreements do not impose covenants, but leased assets may not be used as security for borrowing purposes.

• B. Short-term leases with a lease term of 12 months or less comprise land, construction site dormitory, and business vehicles. On December 31, 2025 and 2024, payments of lease commitments for short-term leases amounted to $332,918 and $303,623, respectively.

• C. The carrying amount of right-of-use assets and the depreciation charge are as follows:

Land Buildings Machinery and equipment Transportation equipment (Business vehicles) Office equipment (Photocopiers) Others Land Buildings Machinery and equipment Transportation equipment (Business vehicles) Office equipment (Photocopiers) Others	December31,2025 December31,2024 Carryingamount Carryingamount 134,708 $ 116,631 $ 1,242,217 1,567,734 58 842 34,074 29,712 3,831 6,240 - 362 1,414,888 $ 1,721,521 $ 2025 2024 Depreciation charge Depreciationcharge 83,148 $ 116,844 $ 388,278 387,940 193 295 44,532 28,975 3,686 4,018 362 674 520,199 $ 538,746 $ For the years endedDecember31,	December31,2024 Carryingamount
		116,631 $ 1,567,734 842 29,712 6,240 362
		1,721,521 $
		Depreciationcharge
		116,844 $ 387,940 295 28,975 4,018 674
		538,746 $

• D. For the years ended December 31, 2025 and 2024, the additions to right-of-use assets were $240,435 and $133,595, respectively.

~39~

• E. The information on income and expense accounts relating to lease contracts is as follows:

		For the years ended	For the years ended	December31,
		2025		2024
Items affecting profit or loss
Interest expense on lease liabilities	$	13,118	$	15,569
Expense on short-term lease contracts		341,810		302,979
Expense on leases of low-value assets		2,011		3,002
Gain on lease modification		240		95

• F. For the years ended December 31, 2025 and 2024, the Company’s total cash outflow for leases were $890,344 and $841,496, respectively.

• (10) Leasing arrangements – lessor

• A. The Company leases buildings. Rental contracts are typically made for periods of 20 years.

• B. The Company leases buildings through finance leases, and recognizes lease payments receivable under IFRS 16. Details are provided in Note 6(11). Information on profit or loss in relation to lease contracts is as follows:

lease contracts is as follows:
Finance income from the net investment in the finance lease	For the years endedDecember31,
	2025 13,582 $	2024
		83,313 $

• C. The maturity analysis of the undiscounted lease payments in the finance lease is as follows:

From January 1, 2025 to December 31, 2025 From January 1, 2026 to December 31, 2026 From January 1, 2027 to December 31, 2027 From January 1, 2028 to December 31, 2028 From January 1, 2029 to December 31, 2029 From January 1, 2030 to December 31, 2030	December 31,2025		December 31,2024
	- $ - - - - - - $		175,000 $ 175,000 175,000 175,000 175,000 2,377,083
			3,252,083 $

• D. Reconciliation of the undiscounted lease payments and the net investment in the finance lease is provided as follows:

provided as follows:
Undiscounted lease payments Unearned finance income Net investment in the lease	December	Non-current - $ - ( - $ 31,2025	December	31,2024
	Current - $ - - $		Current 175,000 $ 80,161) ( 94,839 $	Non-current
				3,077,083 $ 760,541
				2,316,542 $

~40~

• E. In order to achieve the group division objectives, the Board of Directors during its meeting on December 13, 2024 resolved to spin off the operation as well as the assets and liabilities of S.T.S.P. Reclaimed Water Plant, including the buildings and its related equipment in S.T.S.P. Reclaimed Water Plant, to the Company’s wholly-owned subsidiary, CTCI STSP Water Resources Corp. CTCI STSP Water Resources Corp. shall issue 77,000 thousand new shares (with a par value of NT$10 (in dollars) per share) to the Company as consideration with the effective date of the spin-off set on February 14, 2025.

(11) Other non-current assets

Other non-current assets
		December31,2025		December31,2024
Lease payments receivable	$	-	$	2,316,542
Refundable deposits		569,166		255,649
Others		297		535
	$	569,463	$	2,572,726

Note: Refer to Note 6(10) for details of lease payments receivable.

(12) Short-term borrowings

Short-term borrowings
Accounts payable Type of borrowings Bank borrowings Unsecured borrowings Type ofborrowings Bank borrowings Unsecured borrowings Materials payable Sub-contract costs payable	December31,2025 Interest raterange Collateral - $ - - December31,2024 Interest rate range Collateral 2,790,000 $ 1.98%~2.45% - December31,2025 December 31, 2024 6,994,510 $ 7,822,763 $ 5,408,570 5,345,520 12,403,080 $ 13,168,283 $		Collateral
			- Collateral
		7,822,763 $ 5,345,520
		13,168,283 $

(13) Accounts payable

(14) Other payables

Other payables
Other current liabilities Accrued payroll Accrued insurance Accrued pension Accrued tax payable Accrued interest payable Others Other current liabilities Joint venture	December31,2025 949,056 $ 85,398 29,906 935,935 123,383 694,931 2,818,609 $ December31,2025 326,047 $	December31,2024
		1,033,463 $ 99,924 29,404 96,804 56,890 689,647
		2,006,132 $
		December31,2024
		153,726 $

(15) Other current liabilities

~41~

Other current assets (liabilities) - joint venture represents an accumulated cost over (under) the accumulated capital injection and bills.

(16) Bonds payable

accumulated capital injection and bills. Bonds payable
			December31,2025			December31,2024
Bonds payable		$	12,699,900		$	10,700,000
Less: Discount on bonds payable	(		408,945)	(		511,155)
Current portion	(		1,699,900)	(		2,999,431)
		$	10,591,055		$	7,189,414

• A. The terms of the domestic unsecured bonds issued by the Company are as follows: In 2019, 2020, 2022 and 2025, the Company issued $6,000,000, $3,000,000, $1,700,000, $1,550,000 and $3,450,000, with annual fixed interest rate of 0.9%, 0.77%, 2.40%, 2.10% and 2.28%, domestic unsecured bonds, as approved by the regulatory authority, respectively. The bonds mature 5 years, 5 years, 3 years, 5 years and 7 years from the issue date (December 25, 2019 ~ December 25, 2024, June 22, 2020 ~ June 22, 2025, January 11, 2023 ~ January 11, 2026, March 31, 2025 ~ March 31, 2030 and March 31, 2025 ~ March 31, 2032) respectively, and will be redeemed at the maturity date. The bonds were approved to be issued on the Taipei Exchange on December 16, 2019, June 11, 2020, January 4, 2023, March 20, 2025 and March 20, 2025, respectively. On December 25, 2025 and June 20, 2025, the Company had paid $6,000,000 and $3,000,000 upon maturity, respectively.

• B. The terms of the domestic convertible bonds issued by the Company are as follows:

• (a) The competent authority had approved the Company’s second time raising and issuance of domestic unsecured convertible bonds, with the total face value of $6,000,000. The convertible bonds would be issued by competitive bidding under public underwriting. The actual issuance price, the actual total consideration, transaction costs and the coupon rate of the convertible bonds is 104.82% premium of face value, $6,289,317, $5,955, and 0%, respectively, and the bonds mature five years from the issue date (July 23, 2024 to July 23, 2029) and will be fully redeemed at the face value in cash at the maturity date. The convertible bonds stocks were officially listed on the Taipei Exchange since July 23, 2024.

• (b) The bondholders have the right to ask for conversion of the bonds into common shares of the Company during the period from the date after three months of the bonds issue to the maturity date, except the stop transfer period as specified in the terms of the bonds or the laws/regulations. The rights and obligations of the new shares converted from the bonds are the same as the issued and outstanding common shares.

• (c) The conversion price of the bonds is set up based on the pricing model specified in the terms of the bonds and is subject to adjustments if the condition of the anti-dilution provisions occurs subsequently. The conversion price will be reset based on the pricing model specified in the terms of the bonds on each effective date regulated by the terms. If the reset conversion price is higher than the conversion price before the reset, the conversion price will not be

~42~

adjusted. The conversion price was NTD 53.9 per share upon issuance. The conversion price was adjusted to NTD 51.8 per share based on the terms of the bonds. Furthermore, the conversion price of the bonds was adjusted to NT$45.5 (in dollars) per share based on the terms of the bonds since August 23, 2025 because the Company distributed cash dividends and stock dividends.

• (d) The Company may repurchase all the bonds in cash at the bonds’ face value within 30 trading days after the closing price of the Company’s common shares is above the then conversion price by at least 30% for 30 consecutive trading days during the period from the date after three months of the bonds issue to 40 days before the maturity date. Alternatively, the Company may repurchase all the bonds in cash at the bonds’ face value at any time if the outstanding balance of the bonds is less than 10% of total initial issue amount during the period from the date after three months of the bonds issue to 40 days before the maturity date.

• (e) Under the terms of the bonds, all bonds redeemed (including bonds repurchased from the Taipei Exchange), matured and converted are retired and not to be re-issued; all rights and obligations attached to the bonds are also extinguished.

• (f) As of December 31, 2025, convertible bonds with face value amounting to $100 had been converted into 1,930 common shares of the Company.

• (g) As of December 31, 2025, the face value of the convertible bonds repurchased by the Company from Taipei Exchange amounted to $0.

• C. Regarding the issuance of convertible bonds, the equity conversion options for the Company amounting to $811,747 was separated from the liability component and were recognized in ‘capital surplus—share options’ in accordance with IAS 32. The call options and put options embedded in bonds payable were separated from their host contracts and were recognized in ‘financial assets or liabilities at fair value through profit or loss’ in net amount in accordance with IFRS 9 because the economic characteristics and risks of the embedded derivatives were not closely related to those of the host contracts. The effective interest rate of the bonds payable for the Company after such separation was 1.9445%.

(17) Other non-current liabilities

Other non-current liabilities
Net defined benefit liabilities Guarantee deposits received Investment accounted for under the equity method (credit balance) Others	December31,2025 267,501 $ 449,973 166,318 66,287 950,079 $	December31,2024
		343,194 $ 419,570 992,107 68,320
		1,823,191 $

~43~

(18) Pensions

• A. Defined benefit pension plan

• (a) The Company has a defined benefit pension plan in accordance with the Labor Standards Act, covering all regular employees’ service years prior to the enforcement of the Labor Pension Act on July 1, 2005 and service years thereafter of employees who chose to continue to be subject to the pension mechanism under the Act. Under the defined benefit pension plan, two units are accrued for each year of service for the first 15 years and one unit for each additional year thereafter, subject to a maximum of 45 units. Pension benefits are based on the number of units accrued and the average monthly salaries and wages of the last 6 months prior to retirement. The Company contributes monthly an amount equal to 6.5% of the employees’ monthly salaries and wages to the retirement fund deposited with Bank of Taiwan, the trustee, under the name of the independent retirement fund committee. Also, the Company would assess the balance in the aforementioned labor pension reserve account by December 31, every year. If the account balance is insufficient to pay the pension calculated by the aforementioned method to the employees expected to qualify for retirement in the following year, the Company will make contributions to cover the deficit by next March.

• (b) The amounts recognized in the balance sheet are as follows:

December31,2025 Present value of defined benefit obligations 1,570,741 $ Fair value of plan assets 1,303,240) ( ( Net defined benefit liability 267,501 $	December 31, 2024 1,698,504 $ 1,355,310) 343,194 $

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(c) Movements in net defined benefit liabilities are as follows:

		Present value of	Present value of
		defined benefit			Fair value of			Net defined
			obligations		plan assets		benefit liability
Year ended December 31, 2025
At January 1		$	1,698,504	($	1,355,310)		$	343,194
Current service cost			12,840		-			12,840
Interest expense (income)			27,176	(	21,685)			5,491
			1,738,520	(	1,376,995)			361,525
Remeasurements:
Change in financial assumptions			26,211		-			26,211
Experience adjustments			16,980	(	98,368)	(		81,388)
			43,191	(	98,368)	(		55,177)
Pension fund contribution			-	(	38,847)	(		38,847)
Paid pension	(		210,970)		210,970			-
At December 31		$	1,570,741	($	1,303,240)		$	267,501
		Present value of
		defined benefit			Fair value of			Net defined
			obligations		plan assets		benefit liability
Year ended December 31, 2024
At January 1		$	1,859,086	($	1,320,063)		$	539,023
Current service cost			8,871		-			8,871
Interest expense (income)			22,309	(	15,841)			6,468
			1,890,266	(	1,335,904)			554,362
Remeasurements:
Change in financial assumptions	(		40,984)		-	(		40,984)
Experience adjustments			41,763	(	124,682)	(		82,919)
			779	(	124,682)	(		123,903)
Pension fund contribution			-	(	87,265)	(		87,265)
Paid pension	(		192,541)		192,541			-
At December 31		$	1,698,504	($	1,355,310)		$	343,194

(d) The Bank of Taiwan was commissioned to manage the Fund of the Company’s defined benefit pension plan in accordance with the Fund’s annual investment and utilization plan and the “Regulations for Revenues, Expenditures, Safeguard and Utilization of the Labor Retirement Fund” (Article 6: The scope of utilization for the Fund includes deposit in domestic or foreign financial institutions, investment in domestic or foreign listed, over-thecounter, or private placement equity securities, investment in domestic or foreign real estate securitization products, etc.). With regard to the utilization of the Fund, its minimum earnings in the annual distributions on the final financial statements shall be no less than the earnings attainable from the amounts accrued from two-year time deposits with the interest rates offered by local banks. If the earnings is less than aforementioned rates, government shall make payment for the deficit after being authorized by the Regulator. The Company has no

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right to participate in managing and operating that fund and hence the Company is unable to disclose the classification of plan assets fair value in accordance with IAS 19 paragraph 142. The composition of fair value of plan assets as of December 31, 2025 and 2024 is given in the Annual Labor Retirement Fund Utilization Report announced by the government.

(e) The principal actuarial assumptions used were as follows:

	For the years endedDecember31,
	2025 2024
Discount rate	1.30% 1.60%
Future salary increases	3.00% 3.00%

Assumptions regarding future mortality experience are set based on actuarial advice in accordance with published statistics and experience in each territory.

Because the main actuarial assumption changed, the present value of defined benefit obligation is affected. The analysis was as follows:

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Discount rate Future salary increases
Increase Decrease Increase Decrease
0.25% 0.25% 0.25% 0.25%
December 31, 2025
Effect on present value of
defined benefit obligation ($ 21,903) $ 22,542 $ 18,310 ($ 17,886)
December 31, 2024
Effect on present value of
defined benefit obligation ($ 24,700) $ 25,398 $ 20,821 ($ 20,362)
----- End of picture text -----

The sensitivity analysis above is based on one assumption which changed while the other conditions remain unchanged. In practice, more than one assumption may change all at once. The method of analyzing sensitivity and the method of calculating net pension liability in the balance sheet are the same.

The methods and types of assumptions used in preparing the sensitivity analysis did not change compared to the previous period.

• (f) Expected contributions to the defined benefit pension plan of the Company for the year ending December 31, 2026 amount to $36,460.

• (g) As of December 31, 2025, the weighted average duration of the retirement plan is 6 years.

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• B. Defined contribution pension plan

  • (a) Effective July 1, 2005, the Company has established a defined contribution pension plan (the “New Plan”) under the Labor Pension Act (the “Act”), covering all regular employees with R.O.C. nationality. Under the New Plan, the Company contributes monthly an amount based on 6% of the employees’ monthly salaries and wages to the employees’ individual pension accounts at the Bureau of Labor Insurance. The benefits accrued are paid monthly or in lump sum upon termination of employment.

  • (b) The pension costs under the defined contribution pension plan of the Company for the years ended December 31, 2025 and 2026 were $169,075 and $163,348, respectively.

• (19) Share-based payment-employee compensation

• A. As of December 31, 2025 and 2024, the Company’s share-based payment arrangements were as follows:

follows:
Type of arrangement	Grantdate	Quantity granted Contract period Vesting conditions 20,000 units 6 years Service of 2 to 4 years 20,000 units 6 years Service of 2 to 4 years 20,000 units 6 years Service of 2 to 4 years
Sixth plan of employee stock options Seventh plan of employee stock options Eighth plan of employee stock options	2018.03.09 2019.03.08 2020.01.08

• B. The above employee stock options are set forth below:

• i. Details of the sixth plan of employee stock options outstanding as of December 31, 2025 and 2024 are set forth below:

2024 are set forth below:
Stockoptions Options outstanding at beginning of year Options waived Options exercised Options outstanding at end of year Options exercisable at end of year	No. of units Weighted-average No. of units Weighted-average (shares in exercise price (shares in exercise price thousands) (indollars) thousands) (indollars) - - 3,521.21 NT$33.30 - - 1,854.63) ( - - - 1,666.58) ( NT$33.30 - - - - - - - - For the years endedDecember31, 2025 2024
		NT$33.30 - NT$33.30 - -

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• ii. Details of the seventh plan of employee stock options outstanding as of December 31, 2025 and 2024 are set forth below:

			For the years endedDecember31,	For the years endedDecember31,	For the years endedDecember31,	For the years endedDecember31,
			2025			2024
		No. of units	Weighted-average		No. of units	Weighted-average
		(shares in	exercise price		(shares in	exercise price
Stockoptions		thousands)	(indollars)		thousands)	(indollars)
Options outstanding at
beginning of year		5,301.40	NT$36.50		8,931.04	NT$38.00
Options waived	(	2,537.27)	-	(	86.20)	-
Options exercised	(	2,764.13)	NT$36.50	(	3,543.44)	NT$37.50
Options outstanding
at end of year		-	-		5,301.40	NT$36.50
Options exercisable
at end of year		-	-		5,279.29	NT$36.50

• iii. Details of the eighth plan of employee stock options outstanding as of December 31, 2025 and 2024 are set forth below:

			For the years endedDecember31,	For the years endedDecember31,	For the years endedDecember31,	For the years endedDecember31,
			2025			2024
		No. of units	Weighted-average		No. of units	Weighted-average
		(shares in	exercise price		(shares in	exercise price
Stockoptions		thousands)	(indollars)		thousands)	(indollars)
Options outstanding at
beginning of year		4,999.57	NT$29.00		8,776.10	NT$30.20
Options waived	(	84.25)	-	(	84.93)	-
Options exercised	(	2,940.36)	NT$26.50	(	3,691.60)	NT$30.00
Options outstanding
at end of year		1,974.96	NT$25.50		4,999.57	NT$29.00
Options exercisable
at end of year		1,958.10	NT$25.50		4,969.75	NT$29.00

• C. The weighted-average stock price of stock options at exercise dates for the years ended December 31, 2025 and 2024 were NT$33.09 and NT$46.36, respectively.

• D. As of December 31, 2025 and 2024, the range of exercise prices of stock options outstanding were NT$25.50 and NT$29.00~NT$36.50, respectively; the weighted-average remaining contractual period was as follows:

contractual period was as follows:
Type of arrangement Sixth plan of employee stock options Seventh plan of employee stock options Eighth plan of employee stock options	December31,2025 0 year 0 year 0 year	December31,2024
		0 year 0.5 years 1 years

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• E. The fair value of stock options is measured using the Black-Scholes option-pricing model. Relevant information is as follows:

==> picture [462 x 42] intentionally omitted <==

----- Start of picture text -----

Exercise Expected Expected Expected Risk free Fair value
Type of Stock price price price option dividend interest per unit
arrangement Grant date (in dollars) (in dollars) volatility life rate rate (in dollars)
----- End of picture text -----

Type of arrangement	Grant date	Stock price (in dollars)	price (in dollars)	price volatility	option life	dividend rate	interest rate	per unit (in dollars)
Sixth plan of	2018.3.9	NT$45.9	NT$45.9	24.96%~	4~5 years	0%	0.63%~	NT$ 9.56~
employee stock				26.37%			0.72%	NT$ 11.29
options
Seventh plan of	2019.3.8	NT$48.9	NT$48.9	22.88%~	4~5 years	0%	0.64%~	NT$ 9.38~
employee stock				23.56%			0.67%	NT$ 10.82
options
Eighth plan of	2020.1.8	NT$36.9	NT$36.9	19.14%~	4~5 years	0%	0.55%~	NT$ 5.95~
employee stock				21.50%			0.57%	NT$ 7.44
options

• F. For the years ended December 31, 2025 and 2024, expense recognized arising from share-based payment amounted to ($161) and $14, respectively.

• (20) Restricted stocks to employees

• A. For the years ended December 31, 2025 and 2024, restricted stocks to employees of the Company are as follows:

Type of arrangement	Grant date	Quantity granted (in thousands)	Contract period	Vesting conditions 3 to 5 years’ service and performance conditions 3 to 5 years’ service and performance conditions
First plan of restricted stocks to employees Second plan of restricted stocks to employees	2022.01.01 2023.01.01	5,500 shares 4,150 shares	3 to 5 years 3 to 5 years

• (a) Issuance price: No consideration in return, issuance price was NT$0 (in dollars) per share.

• (b) Details of the share-based payment arrangements are as follows:

• i. First plan of restricted stocks to employees

Options outstanding at January 1 Options retired Options outstanding at December 31		No. of options (shares in thousands) 2025		2024
				No. of options (shares in thousands)
	(	4,461 4,458) 3	(	4,665 204)
				4,461

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ii. Second plan of restricted stocks to employees

Options outstanding at January 1 Options retired Options outstanding at December 31	No. of options (shares in thousands) 3,757 214) ( 3,543 2025	2024
		No. of options (shares in thousands)
		3,924 167) ( 3,757

• (c) Relevant information on the fair value of the share-based payment arrangements is as follows:

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----- Start of picture text -----

Type of arrangement Grant date Stock price Fair value per unit
First plan of 2022.01.01 NT$37.2 NT$37.2
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Type ofarrangement First plan of	Grantdate 2022.01.01	Stockprice NT$37.2	Fairvalue perunit NT$37.2
restricted
stocks to
employees
Second plan of	2023.01.01	NT$41.85	NT$41.85
restricted
stocks to
employees

• (d) The types of shares issued and given to employees were ordinary shares. Excluding inheritance, employees may not sell, pledge, transfer, give to another person, create any encumbrance on, or otherwise dispose of restricted stocks before their vesting conditions are met. Other rights and obligations of the ordinary shares are the same as other ordinary shares outstanding. If employees voluntarily resign, voluntarily apply for retirement, are dismissed or paid off during the vesting period, the restricted stocks that have not yet been acquired will be deemed as not meeting the vesting conditions on the date of the event. The Company will redeem the restricted stocks without consideration and the restricted stocks will be retired.

• (e) The employees who are eligible to the abovementioned share-based payment arrangements are official full-time employees of the Company and its domestic subsidiaries that were in service on the grant date of the restricted stocks to employees.

• B. For the years ended December 31, 2025 and 2024, the expenses incurred on share-based payment transactions were ($4,024) and ($38,861), respectively.

(21) Provisions

Provisions
			2025			2024
			Onerous contracts			Onerous contracts
At January 1		$	364,209		$	88,330
Additional provisions			1,106,196			351,442
Used during the year	(		204,589)	(		58,592)
Reversed during the year	(		71,663)	(		16,971)
At December 31		$	1,194,153		$	364,209

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Onerous contracts

The Company’s provisions for the onerous contracts mainly refer to the difference of the cost of fulfilling a non-cancellable onerous contract less the consideration that will be received for fulfilling the contract.

• (22) Share capital

• A. As of December 31, 2025 and 2024, the Company’s authorized capital were all $12,000,000, and the paid-in capital were $8,945,506 and $8,122,571, consisting of 894,550,551 and 812,257,088 shares, respectively, with a par value of NT$10 per share.

Movements in the number of the Company’s ordinary shares outstanding (excluding treasury shares) are as follows:

shares) are as follows:
		For the years ended		December 31,
		2025		2024
At January 1		810,912,354		802,382,111
Employee stock options exercised		5,704,481		8,901,625
Conversion of convertible bonds into capital		1,930		-
Reacquisition and retirement of share capital	(	4,598,557)	(	284,282)
Reacquisition of share capital awaiting
retirement	(	73,212)	(	87,100)
Capitalization of earnings		81,272,709		-
Capitalization of earnings - shares of the parent
company held by subsidiaries	(	125,998)		-
At December 31		893,093,707		810,912,354

• B. As the employees did not meet the vesting conditions of the restricted stocks to employees, the Company redeemed 4,671,769 and 371,382 shares and recorded them as reduction of share capital and share capital awaiting retirement for the years ended December 31, 2025 and 2024, respectively.

• C. The domestic subsidiaries of the Company measured the services provided by the employees by considering the equity instruments that the Company granted to their employees as equity-settled share-based payment transactions and recognized corresponding increase in equity.

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D. Treasury shares

• (a) Reason for share reacquisition and movements in the number of the Company’s treasury shares are as follows:

shares are as follows:
Name of company holding the shares Subsidiary-ECOVE Environmental Services Corp. Subsidiary-CTCI Investment Corp. Subsidiary-CTCI Development Corp. Name of companyholdingthe shares Subsidiary-ECOVE Environmental Services Corp. Subsidiary-CTCI Investment Corp. Subsidiary-CTCI Development Corp.	Reason for reacquisition To maintain stockholders’ equity " " Reason for reacquisition To maintain stockholders’ equity " "	Number of shares 1,130 378,944 1,003,558 1,383,632 December December	Carrying amount 31, 2025
			10 $ 3,241 8,584
			11,835 $
			31, 2024
		Number ofshares 1,028 344,436 912,170 1,257,634	Carrying amount
			10 $ 3,241 8,584
			11,835 $

• (b) Pursuant to the R.O.C. Securities and Exchange Law, the number of shares bought back as treasury share should not exceed 10% of the number of the Company’s issued and outstanding shares and the amount bought back should not exceed the sum of retained earnings, paid-in capital in excess of par value and realized capital surplus.

(23) Capital surplus

• A. Pursuant to the R.O.C. Company Law, capital surplus arising from paid-in capital in excess of par value on issuance of common stocks and donations can be used to cover accumulated deficit or to issue new stocks or cash to shareholders in proportion to their share ownership, provided that the Company has no accumulated deficit. Further, the R.O.C. Securities and Exchange Law requires that the amount of capital surplus to be capitalized mentioned above should not exceed 10% of the paid-in capital each year. Capital surplus should not be used to cover accumulated deficit unless the legal reserve is insufficient.

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B. The details and movements of capital surplus are provided as follows:

At January 1, 2025 Employee stock options exercised Employee stock options exercised by subsidiary Share-based payment transaction Restricted stocks to employees Conversion of convertible bonds into capital Issuance of convertible bonds by subsidiary and converted into capital Change in equity of associates in proportion to the Company's ownership At December 31, 2025 At January 1, 2024 Employee stock options exercised Employee stock options exercised by subsidiary Share-based payment transaction Restricted stocks to employees Issuance of convertible bonds Issuance of convertible bonds by subsidiary and converted into capital Change in equity of associates in proportion to the Company's ownership At December 31, 2024	Share premium 4,502,666 $ 162,167 - - 66 89 - - 4,664,988 $ Share premium 4,209,263 $ 293,403 - - - - - - 4,502,666 $	Treasury share 5,043 $ - - - - - - - 5,043 $ Treasury share 5,043 $ - - - - - - - 5,043 $	Changes in ownership Restricted interests in Employee stocks to subsidiaries stockoptions employees 406,778 $ 554,873 $ 224,271 $ - 40,393) ( - 19,739 - - - 185) ( - - - 133,141) ( - - - 92 - - - - - 426,609 $ 514,295 $ 91,130 $ Changes in ownership Restricted interests in Employee stocks to subsidiaries stockoptions employees 382,127 $ 637,957 $ 220,557 $ - 83,498) ( - 24,575 - - - 414 - - - 3,714 - - - 76 - - - - - 406,778 $ 554,873 $ 224,271 $	Net change in equity of Stock associates options 1,452 $ 811,747 $ - - - - - - - - - 14) ( - - 67,857 - 69,309 $ 811,733 $ Net change in equity of Stock associates options 585 $ - $ - - - - - - - - - 811,747 - - 867 - 1,452 $ 811,747 $	Others Total 9,242 $ 6,516,072 $ - 121,774 - 19,739 - 185) ( - 133,075) ( - 75 - 92 - 67,857 9,242 $ 6,592,349 $ Others Total 9,242 $ 5,464,774 $ - 209,905 - 24,575 - 414 - 3,714 - 811,747 - 76 - 867 9,242 $ 6,516,072 $	Total
						6,592,349 $
						Total
						5,464,774 $ 209,905 24,575 414 3,714 811,747 76 867
						6,516,072 $

• C. Refer to Notes 6(19) and (20) for details about the capital surplus - employee stock options and restricted stocks to employees.

(24) Retained earnings

• A. The Company shall, after all taxes and dues have been paid and its losses have been covered and at the time of allocating surplus profits, first set aside 10% of such profits as legal reserve. However, when the legal reserve amounts to the authorized capital, this shall not apply. Furthermore, in accordance with the provisions of laws and regulations and the rules prescribed by the central competent authority, a special reserve shall be set aside. If there is recovery of the balance of special reserve, the recovered amount shall be included in the distribution of the profit for the current year. The allocable profit for the current year, which is the balance after the profit distribution and covering losses aforementioned as the preceding paragraph, together with the undistributed retained earnings accrued from prior years shall be referred to as accumulated distributable earnings, which shall be distributed as dividends to shareholders according to shareholders’ resolutions. The Board of Directors is authorized to distribute all or part of the distributable dividends, bonus, capital surplus and legal reserve in cash through a resolution by half of the two-thirds of the attendees at the Board of Directors’ meeting, which shall then be reported to the shareholders during their meeting.

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The Company’s dividend policy takes into consideration the requirements for business expansion and industry growth, future operating needs and stability of financial structure. Thus, the distribution of the accumulated distributable earnings is in accordance with the shareholders’ resolutions. Also, the amount of shareholders’ bonus shall not be less than 50% of accumulated distributable earnings of the Company, and in particular, cash dividends shall not be less than 20% of total dividends distributed.

• B. Except for covering accumulated deficit or issuing new stocks or cash to shareholders in proportion to their share ownership, the legal reserve shall not be used for any other purpose. The use of legal reserve for the issuance of stocks or cash to shareholders in proportion to their share ownership is permitted, provided that the balance of the reserve exceeds 25% of the Company’s paid-in capital.

• C. Special reserve

• (a) In accordance with the regulations, the Company shall set aside special reserve from the debit balance on other equity items at the balance sheet date before distributing earnings. When debit balance on other equity items is reversed subsequently, the reversed amount could be included in the distributable earnings.

• (b) The amounts previously set aside by the Company as special reserve on initial application of IFRSs in accordance with Jin-Guan-Zheng-Fa-Zi Letter No. 1010012865, dated April 6, 2012, shall be reversed proportionately when the relevant assets are used, disposed of or reclassified subsequently. Such amounts are reversed upon disposal or reclassified if the assets are investment property of land, and reversed over the use period if the assets are investment property other than land.

• D. Details of the appropriations of 2024 and 2023 earnings as resolved by the shareholders during their meeting on May 28, 2025 and May 27, 2024, respectively, are as follows:

Dividends per share Amount (inNTdollars) Set aside as legal reserve 211,898 $ (Reversal of) set aside as special reserve 79,861) ( Distribution of stock dividends from earnings 812,727 1.00 $ Distribution of cash dividends from earnings 812,727 1.00 1,757,491 $ 2.00 $ 2024	2023	2023
	Amount 186,815 $ 229,568 - 1,660,258 2,076,641 $	Dividends per share (inNTdollars)
		2.06 $

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• E. Details of the appropriations of 2025 earnings as proposed by the Board of Directors on March 9, 2026 are as follows:

Set aside as legal reserve Set aside as special reserve Distribution of share dividends from earnings Distribution of cash dividends from earnings	Dividends per share Amount (inNTdollars) 174,583 $ 563,430 180,082 0.20 $ 720,328 0.80 1,638,423 $ 1.00 $ 2025

As of March 9, 2026, the appropriations of 2025 earnings have not yet been resolved by the shareholders.

• F. For the years ended December 31, 2024 and 2023, the total amount of the Company’s share capital outstanding has been changed due to the exercise of employee stock options and the redemption of the restricted stocks not meeting the vesting conditions. In accordance with the resolution of the shareholders, the Chairman was authorized to adjust the cash dividends payout ratio. The distribution of cash dividends from 2024 and 2023 earnings was adjusted from $1.00 and $2.06 (in NT dollars) per share to $1.00188286 and $2.04862745 (in NT dollars) per share, respectively. The distribution of stock dividends from 2024 earnings was adjusted from $1.00 (in NT dollars) per share to $1.00188285 (in NT dollars) per share.

• G. For information relating to employees’ compensation (bonuses) and directors’ remuneration, refer to Note 6(26).

(25) Operating revenue

to Note 6(26). Operating revenue
Revenue from contracts with customers	2025 2024 52,677,277 $ 61,616,019 $ For the years ended December 31,
		2024
		61,616,019 $

• A. Disaggregation of revenue from contracts with customers

The Company derives revenue from the transfer of goods and services over time and at a point in time in the following major product lines:

in time in the following major product lines:
For the year ended December31,2025 Segment revenue Inter-segment revenue Revenue from external customer contracts Timing of revenue recognition At a point time Over time	Construction Engineering Other Operating Revenue Revenue 52,573,130 $ 104,147 $ - - 52,573,130 $ 104,147 $ - $ - $ 52,573,130 104,147 52,573,130 $ 104,147 $	Total
		52,677,277 $ -
		52,677,277 $
		- $ 52,677,277
		52,677,277 $

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For the year ended December31,2024 Segment revenue Inter-segment revenue Revenue from external customer contracts Timing of revenue recognition At a point time Over time	Construction Engineering Other Operating Revenue Revenue Total 61,288,661 $ 327,358 $ 61,616,019 $ - - - 61,288,661 $ 327,358 $ 61,616,019 $ - $ - $ - $ 61,288,661 327,358 61,616,019 61,288,661 $ 327,358 $ 61,616,019 $
	$
	$
	$ $

• B. For the Hsinta Thermal Power Plant Reconstruction Program of Taiwan Power Company (Taipower), which was jointly undertaken by the Company and General Electric International Inc. (GE), a fire incident occurred on September 9, 2025. From the date that the incident occurred to March 9, 2026, the Company cooperated fully with Taipower and competent authority to investigate the cause of the incident. Before the date the Company and GE provide an analysis report on the cause of the incident, the information on the incident is primarily based on Taipower’s announcements.

• C. Contract assets and liabilities

• (a) The Company has recognized the following revenue-related contract assets and liabilities:

power’s announcements. ntract assets and liabilities The Company has recognized the following revenue-related contract assets and liabilities:	power’s announcements. ntract assets and liabilities The Company has recognized the following revenue-related contract assets and liabilities:	assets and liabilities:
Revenue recognized that was included in the contract liabilities balance at the beginning of the year. December31,2025 December31,2024 Contract assets - construction contract revenue 14,275,044 $ 18,094,453 $ Less: Allowance for uncollectible accounts 6,974) ( - 14,268,070 $ 18,094,453 $ Contract liabilities - construction contract revenue 35,743,872 $ 16,698,739 $ 2025 2024 Revenue recognized that was included in the contract liabilities balance at the beginning of the year Construction contracts revenue 5,965,481 $ 13,358,208 $ Years endedDecember31,		December31,2024
		18,094,453 $ -
		18,094,453 $
		16,698,739 $
	2025 5,965,481 $	2024
		13,358,208 $

• (b) Revenue recognized that was included in the contract liabilities balance at the beginning of the year.

• (c) Information related to credit risk of contract assets is provided in Note 12(2).

• D. For the construction contracts signed by the Company, the transaction prices allocated to the unsatisfied contracts as of December 31, 2025 and 2024 are expected to be recognized as revenue amounting to $286,557,110 and $186,611,690 from 2026 to 2054 and from 2025 to 2054, respectively.

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(26) Expenses by nature

Expenses by nature
Materials Subcontract costs Employee benefit expense Rental expenses Insurance expenses Travel expenses Depreciation Amortization Taxes Finance costs Utilities expenses Software usage fee Sewerage usage fee Foreign worker employment stability fee Professional service fee Fuel consumption Freight costs Repair and maintenanace expenses Wages and salaries to foreign migrant workers and contractors Expected Credit Losses Hardware supplies fees Migrant workers group meal fees Others	2025 2024 16,061,029 $ 19,265,642 $ 26,054,823 32,310,490 4,864,694 4,919,386 332,299 305,982 476,164 319,133 387,286 363,478 565,733 563,446 99,921 93,651 176,452 27,238 309,005 243,031 317,853 217,882 103,824 123,084 27,091 50,335 124,876 96,622 76,700 69,639 83,269 78,270 7,046 55,882 33,432 28,636 2,488,522 2,134,445 9,304 121,040 63,699 87,624 42,327 85,469 1,211,721 1,189,972 53,917,070 $ 62,750,377 $ For the years endedDecember31,
		19,265,642 $ 32,310,490 4,919,386 305,982 319,133 363,478 563,446 93,651 27,238 243,031 217,882 123,084 50,335 96,622 69,639 78,270 55,882 28,636 2,134,445 121,040 87,624 85,469 1,189,972 62,750,377 $

(27) Employee benefit expense

Employee benefit expense
			For the yearendedDecember			31,	2025
			Operating costs	Operating expenses			Total
Salaries and wages		$	3,590,881	$	517,901	$	4,108,782
Employee stock options			-	(	160)	(	160)
Restricted stocks to employees	(		3,783)	(	241)	(	4,024)
Labor and health insurance fees			276,737		45,690		322,427
Pension costs			162,891		24,496		187,387
Directors’ remuneration			-		66,088		66,088
Other personnel expenses			167,756		16,438		184,194
		$	4,194,482	$	670,212	$	4,864,694

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			For the yearendedDecember	For the yearendedDecember	For the yearendedDecember	31,	31,	2024
			Operating costs	Operating expenses				Total
Salaries and wages		$	3,672,238	$	533,457		$	4,205,695
Employee stock options			5		9			14
Restricted stocks to employees	(		33,015)	(	5,846)	(		38,861)
Labor and health insurance fees			266,283		44,002			310,285
Pension costs			155,609		23,078			178,687
Directors’ remuneration			-		74,532			74,532
Other personnel expenses			171,539		17,495			189,034
		$	4,232,659	$	686,727		$	4,919,386

• A. As of December 31, 2025 and 2024, the Company had 3,196 and 3,239 employees, excluding 10 and 11 directors, respectively. To meet the labor demand during the execution of major domestic engineering projects, the Company employed foreign migrant workers. Including these foreign migrant workers, the total number of employees amounted to 6,494 and 6,337 employees, respectively.

• (a) The Company’s average employee benefit expenses for the years ended December 31, 2025 and 2024 were $1,506 and $1,501, respectively. Including foreign migrant workers, the average employee benefit expenses were $1,121 and $1,060, respectively.

• (b) The Company’s average employee salaries and wages for the years ended December 31, 2025 and 2024 were $1,288 and $1,291, respectively. Including foreign migrant workers, the average employee salaries and wages were $984 and $953, respectively.

• (c) The change in the average employee salaries and wages adjustment is (0.24%). Including foreign migrant workers, the figure was 3.25%.

• (d) Since the Company has set up the audit committee, it has no supervisors’ remuneration for the years ended December 31, 2025 and 2024.

• (e) In accordance with the Articles of Incorporation of the Company, a ratio of distributable profit of the current year, after covering accumulated losses, shall be distributed as employees’ compensation and directors’ remuneration. The ratio shall be 1.5% ~ 5% for employees’ compensation and shall not be higher than 1.5% for directors’ remuneration. The employees’ compensation and rank-and-file employees’ compensation could be in the form of stock or cash and could be distributed to the employees of subsidiaries of the Company under certain conditions. A report of the distribution of employees’ compensation, rank-and-file employees’ compensation and directors’ remuneration shall be submitted to the stockholders during their meeting.

• The Company’s overall salary positioning is set at better than the market level to attract the outstanding talents in the market. The Company refers to market salary surveys and pay levels in the same industry to ensure a highly competitive salary structure in order to motivate and retain high performing employees. In addition to strictly complying with the local labor laws and related salary regulations, the Company also pays special attention to the correlation and design

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rationalization of the Company’s operating performance and employee salaries.

Directors’ remunerations are determined by the Board of Directors by reference to the pay levels of listed companies in the same industry and their contribution to the Company. Independent directors’ remunerations are determined based on the Company’s operational performance (consolidated operating revenue, earnings per share and return on equity). Management’s salaries are highly correlated with the outcome and performance of the Company’s operations, and are determined based on their performance indicators every year by reference to the pay levels in the same industry.

Employees’ compensation includes monthly salaries, bonuses, employees’ compensation and employee stock options. The employees’ salary levels are decided based on their positions, education and experience, professional expertise and market value, which will not differ because of gender, religion, political stance, marital status, etc. Annual budget for salary increases is 3~5%, and the salaries are adjusted in line with market levels based on the principle of fairness. Employees’ bonuses are determined based on their positions, contribution and performance to encourage employees’ long-term commitment to the Company for mutual benefits and common prosperity.

• B. According to the Articles of Incorporation of the Company, when distributing earnings, the Company shall distribute bonus to the employees and pay remuneration to the directors that should be 1.5% to 5% and not be higher than 1.5%, respectively, of the total distributed amount.

• C. For the years ended December 31, 2025 and 2024, employees’ compensation were accrued at $50,741 and $58,272, respectively; directors’ remuneration were accrued at $13,730 and $18,000, respectively. The aforementioned amounts were recognized in salary expenses and other expenses, respectively.

The employees’ compensation and directors’ remuneration were estimated and accrued based on an amount of 1.5% to 5% and not higher than 1.5% of distributable profit for the year ended December 31, 2025.

Employees’ compensation and directors’ remuneration for 2024 as resolved at the meeting of Board of Directors were in agreement with those amounts recognized in the 2024 financial statements.

Information about employees’ compensation and directors’ remuneration of the Company as resolved at the meeting of Board of Directors will be posted in the “Market Observation Post System” at the website of the Taiwan Stock Exchange.

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(28) Income tax

A. Components of income tax (benefit) expense:

ome tax Components of income tax (benefit) expense:
			For the years ended			December31,
			2025			2024
Current tax:
Current tax on profits for the year		$	412,093		$	260,637
Prior year income tax under (over) estimation			58,006	(		86,227)
Total current tax			470,099			174,410
Origination and reversal of temporary differences	(		498,472)			56,449
Income tax (benefit) expense	($		28,373)		$	230,859

B. Reconciliation between income tax expense and accounting profit:

			For the years ended December 31,	For the years ended December 31,	For the years ended December 31,
			2025		2024
Tax calculated based on profit before tax and		$	332,598		434,648 $
statutory tax rate (Note)
Effect from controlled foreign company rules			69,444		203,700
Tax exempt income by tax regulation	(		352,081)	(	348,304)
Prior year income tax under (over) estimation			58,006	(	86,227)
Change in assessment of realization of
deferred tax assets	(		165,121)	(	81,174)
Capital reduction to offset accumulated deficit
from subsidiary			-	(	40,528)
Others			28,781		148,744
Income tax (benefit) expense	($		28,373)		230,859 $

Note: The basis of applicable tax rate is calculated by the rate applicable to the Company.

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C. Amounts of deferred tax assets or liabilities as a result of temporary differences are as follows:

					2025	2025	2025
							Recognized		in
								other
				Recognized in			comprehensive
			January1	profit	or loss			income		December31
Temporary differences:
Deferred tax assets
Unrealized loss on		$	72,842	$	165,989		$		-	$	238,831
unfinished construction
Unrealized losses on
doubtful debts			20,200		8,407				-		28,607
Unrealized compensated
absences			19,544		801				-		20,345
Unrealized loss on
financial instruments			600		-				-		600
Unrealized golf card
annual fee			1,080		-				-		1,080
Unrealized pension			56,697	(	4,165)	(		11,035)			41,497
Unrealized loss on
foreign investment			801,613		261,381				-		1,062,994
Others			40,236		70,592				-		110,828
			1,012,812		503,005	(		11,035)			1,504,782
Deferred tax liabilities
Unrealized exchange gain	(		15,248)		7,333				-	(	7,915)
Others	(		5,361)	(	11,866)				-	(	17,227)
	(		20,609)	(	4,533)				-	(	25,142)
		$	992,203	$	498,472	($		11,035)		$	1,479,640

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2024

								Recognized in	Recognized in
									other
					Recognized in			comprehensive
			January1		profit	or loss			income		December31
Temporary differences:
Deferred tax assets
Unrealized loss on		$	17,666		$	55,176		$	-		$	72,842
unfinished construction
Unrealized losses on
doubtful debts			20,200			-			-			20,200
Unrealized compensated
absences			18,003			1,541			-			19,544
Unrealized loss on
financial instruments			600			-			-			600
Unrealized golf card
annual fee			1,080			-			-			1,080
Unrealized pension			95,863	(		14,385)	(		24,781)			56,697
Unrealized loss on
foreign investment			928,588	(		126,975)			-			801,613
Others			15,083			25,153			-			40,236
			1,097,083	(		59,490)	(		24,781)			1,012,812
Deferred tax liabilities
Unrealized exchange gain	(		6,758)	(		8,490)			-	(		15,248)
Others	(		16,892)			11,531			-	(		5,361)
	(		23,650)			3,041			-	(		20,609)
		$	1,073,433	($		56,449)	($		24,781)		$	992,203

• D. The Company’s income tax returns through 2020 have been assessed and approved by the Tax Authority.

• E. The Company’s exposure to Pillar Two income taxes arising from the Pillar Two legislation is as follows:

• (a) The subsidiary, PT CTCI International Indonesia, and the branch, CTCI Corporation Qatar Branch, were incorporated in Indonesia and Qatar, respectively. The two countries mentioned above had amended and endorsed the Pillar Two legislation in 2023, and the legislation came into effect on January 1, 2025.

• (b) PT CTCI International Indonesia and CTCI Corporation Qatar Branch were incorporated in Indonesia and Qatar, respectively. The average effective tax rate was both lower than 15%.

In response to the aforementioned exposure to Pillar Two income taxes, the current tax expense related to Pillar Two income taxes that PT CTCI International Indonesia and CTCI Corporation Qatar Branch recognized for the years ended December 31, 2025 and 2024 were $104,550 and $0, respectively.

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(29) Earnings per share

Earnings per share
Basic earnings pershare Profit attributable to the ordinary shareholders of the parent Diluted earnings pershare Assumed conversion of all dilutive potential ordinary shares Employee stock options Restricted stocks to employees Employees’ compensation Convertible bonds Profit attributable to ordinary shareholders of the parent plus assumed conversion of all dilutive potential ordinary shares Basic earnings pershare Profit attributable to the ordinary shareholders of the parent Diluted earnings pershare Assumed conversion of all dilutive potential ordinary shares Employee stock options Restricted stocks to employees Employees’ compensation Convertible bonds Profit attributable to ordinary shareholders of the parent plus assumed conversion of all dilutive potential ordinary shares	For	the yearendedDecember31,2025
	Amount after tax 1,691,361 $ - - - 72,026 1,763,387 $ For	Weighted-average number of Earnings per ordinary shares outstanding share (sharesin thousands) (inNTdollars) 886,852 1.91 $ 449 3,546 1,697 131,867 1,024,411 1.72 $ the yearendedDecember31,2024	Earnings per share (inNTdollars)
			1.91 $
			1.72 $
	Amount after tax 1,942,383 $ - - - 43,568 1,985,951 $	Weighted-average number of ordinary shares outstanding (sharesin thousands) 880,801 2,983 8,218 1,558 115,830 1,009,390	Earnings per share (inNTdollars)
			2.21 $
			1.97 $

Note: The abovementioned weighted average number of ordinary shares outstanding was retrospectively adjusted proportionately to the capitalized amount of earnings on August 23, 2025, and accordingly, the basic earnings per share and diluted earnings per share were

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calculated on December 31, 2024.

(30) Changes in liabilities from financing activities

At January 1 Changes in cash flow from financing activities Changes in other non-cash items At December 31 At January 1 Changes in cash flow from financing activities Changes in other non-cash items At December 31	Short-term borrowings	Short-term borrowings	Lease liabilities	Lease liabilities		Bondspayable 2025	Liabilities from financing activities- gross 14,748,649 $ 1,344,921) ( 336,948 13,740,676 $	Liabilities from financing activities- gross 14,748,649 $ 1,344,921) ( 336,948 13,740,676 $
	2,790,000 $ 2,790,000) ( - - $		1,769,804 $ 546,523) ( 226,440 1,449,721 $			10,188,845 $ 1,991,602 110,508 12,290,955 $ 2024
		Short-term borrowings		Lease liabilities		Bondspayable		Liabilities from financing activities- gross
		- $ 2,790,000 - 2,790,000 $	2,159,256 $ 535,515) ( 146,063 1,769,804 $		(	10,693,645 $ 283,362 788,162) 10,188,845 $	(	12,852,901 $ 2,537,847 642,099) 14,748,649 $

(31) Supplemental cash flow information

Investing activities with partial cash payments:

Purchase of property, plant and equipment Add: Opening balance of payable on equipment Less: Ending balance of payable on equipment Cash paid during the year Increase in investments accounted for using the equity method Less: Opening balance of prepayments for long-term investments Less: Spin-off of S.T.S.P. Reclaimed Water Plant ( Cash paid during the year	2025 2024 77,018 $ 66,509 $ 17,651 21,761 6,208) ( 17,651) ( 88,461 $ 70,619 $ For the years ended December 31, 2025 2024 3,221,409 $ 1,816,814 $ - 1,458,154) ( 2,395,801) - 825,608 $ 358,660 $ For the years endedDecember31,

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7. Related Party Transactions

(1) Names of related parties and relationship

Names of related parties

Relationship with the Company

ECOVE Environment Corporation Subsidiary CTCI Development Corporation Subsidiary CTCI Smart Engineering Corporation Subsidiary CTCI Resources Engineering Inc. Subsidiary CTCI Advanced Systems Inc. Subsidiary ECOVE Environmental Services Corporation Subsidiary CTCI Chemical Corporation Subsidiary ECOVE Waste Management Corporation Subsidiary CTCI Overseas Co., Ltd. Subsidiary CTCI Shanghai Co., Ltd. Subsidiary CTCI Beijing Co., Ltd. Subsidiary CTCI Machinery Corporation Subsidiary CTCI-HDEC (Chungli) Corp. Subsidiary CTCI Engineering & Construction Sdn. Bhd. Subsidiary CINDA Engineering & Construction Pvt. Ltd. Subsidiary CTCI Arabia Ltd. Subsidiary CTCI Malaysia Sdn. Bhd. Subsidiary CIPEC Construction Inc. Subsidiary CCJV P1 Engineering & Construction Sdn. Bhd. Subsidiary CTCI Vietnam Company Limited Subsidiary CTCI Americas, Inc. Subsidiary CTCI (Thailand ) Co., Ltd. Subsidiary CTCI Singapore Pte. Ltd. Subsidiary ECOVE South Co., Ltd. Subsidiary, it was included in ECOVE Environment Corp. since June 2024 ECOVE Solar Energy Corp. Subsidiary, it was included in ECOVE Environment Corp. since June 2024 ECOVE Solar Power Corp. Subsidiary CTCI Investment Corp. Subsidiary ECOVE Solvent Recycling Corp. Subsidiary CTCI Innovation Co., Ltd. Subsidiary PT CTCI International Indonesia Subsidiary Sinogal-Waste Services Corp. Subsidiary ECOVE Chiayi Energy Corp. Subsidiary ECOVE Resource Recycling Corp. Subsidiary CTCI Construction Corp. Subsidiary ECOVE Enviroment Services Gangshan Corp. Subsidiary

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Names of relatedparties CTCI Resources Contruction Inc. MASTEQ Engineering Sdn. Bhd. CTCI STSP Water Resouces Corp. ECOVE Miaoli Energy Corp. Blue Whale Water Technology Corporation Pan Asia Corporation EVER ECOVE Corporation HDEL-CTCI (Linhai) Corporation Bao Ding Reclaimed Water Co., Ltd. CTCI Foundation CTCI Education Foundation Ho-Ping Power Company Molie Quantum Energy Corporation MIE INDUSTRIAL SDN. BHD. Kaohsiung Cement Products Plant Taiwan Cement Co

Relationshipwith the Company

Subsidiary Subsidiary Subsidiary Subsidiary Associate Associate Associate Associate Associate Other related party Other related party It was one of the Company's other related parties, however, it was no longer a related party of the Company since August 2025. It was one of the Company's other related parties, however, it was no longer a related party of the Company since August 2025. It was one of the Company's other related parties, however, it was no longer a related party of the Company since May 2024. It was one of the Company's other related parties, however, it was no longer a related party of the Company since August 2025.

(2) Significant transactions and balances with related parties

A. Sales of services

Sales of services
			For the years ended		December31,
			2025		2024
Subsidiaries		$	913,738	$	801,692
Associates	(		14,003)		66,575
Other related parties			10,482		206,716
		$	910,217	$	1,074,983

The prices on the construction contracts entered into with related parties are set through negotiation by both parties. The collection terms were approximately the same as those with third parties.

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B. Contract assets and liabilities

Contract assets and liabilities
		December31,2025		December31,2024
Contract assets:
Subsidiaries	$	107,252	$	201,745
Associates		22,035		82,222
Other related parties		-		16,545
	$	129,287	$	300,512
Contract liabilities:
Subsidiaries	$	370,891	$	59,325
Associates		66,951		12,311
Other related parties		13,537		11,434
	$	451,379	$	83,070

• C. Purchases of services

Purchases of services Subsidiaries Associates Other related parties	370,891 $ 59,325 $ 66,951 12,311 13,537 11,434 451,379 $ 83,070 $	370,891 $ 59,325 $ 66,951 12,311 13,537 11,434 451,379 $ 83,070 $
Subsidiaries Associates Other related parties	For the years endedDecember31,
	2025 4,284,909 $ - 15,724 4,300,633 $	2024
		8,665,324 $ 17,855 -
		8,683,179 $

The rates on the construction contracts entered into with related parties are set through negotiation by both parties. The payment terms were approximately the same as that with third parties.

• D. Accounts receivable

D. Accounts receivable
E. Other receivables-related parties Subsidiaries Associates Other related parties Subsidiaries Associates	December31,2025 136,471 $ 98,940 392 235,803 $ December31,2025 42,591 $ - 42,591 $	December 31, 2024
		21,421 $ 225,739 1,505
		248,665 $
		December31,2024
		17,050 $ 321
		17,371 $

Includes advances to related parties for engineering, business travel and interest revenue.

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• F. Loans to related parties (Shown in other receivables-related parties)

• (a) Receivables from related parties

(a) Receivables from related parties
(b) Interest income CTCI Americas, Inc. CTCI Americas, Inc. Other subsidiaries	December 31, 2025 December31,2024 3,140,000 $ 1,537,417 $ For the years endedDecember31,
	2025 93,620 $ 2,054 95,674 $	2024
		44,173 $ 4,101
		48,274 $

The loans to subsidiaries are receivable within one year and carry interest at 3.74%~5.50% and 2.40%~5.80% per annum for the years ended December 31, 2025 and 2024, respectively.

• G. Other non-current assets

H. Accounts payable I. Other payables - related parties Refundable deposits CTCI Development Corporation Subsidiaries Subsidiaries	December 31, 2025 December 31, 2024 140,776 $ 139,823 $ December31,2025 December 31, 2024 1,158,108 $ 1,914,665 $ December31,2025 December 31, 2024 4,854 $ 11,951 $

Includes the Company’s payables on utilities expenses, rent, administrative and cleaning expenses.

• J. Rental income

Rental income
Subsidiaries Associates	For the years endedDecember31,
	2025 16,578 $ 19 16,597 $	2024
		15,795 $ 19
		15,814 $

K. Leasing arrangements – lessee

(a) The Company leases buildings from CTCI Development Corporation and CTCI Foundation. Rental contracts are made for periods from 2009 to 2031 and 2010 to 2029, respectively. Payments are made in the middle of each month and at the end of each half year, respectively.

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(b) Lease liability

i. Outstanding balance:

. Interest expense Subsidiaries Other related parties Subsidiaries Other related parties	December31,2025 December31,2024 1,207,086 $ 1,533,976 $ 33,094 41,277 1,240,180 $ 1,575,253 $ 2025 2024 9,223 $ 11,438 $ 238 294 9,461 $ 11,732 $ For the years endedDecember31,

• ii. Interest expense

• L. Donation expense

Other related parties

For the years ended December 31,	For the years ended December 31,
2025 15,000 $	2024
	15,000 $

The Company donated $15,000 and $15,000 to the CTCI Education Foundation in May 2025 and March 2024, respectively, for personnel training and enterprise social responsibility.

• M. Guarantees for related parties

Guarantees for related parties
Associates Subsidiaries	December31,2025 2,286,755 $ 53,806,284 56,093,039 $	December 31, 2024
		2,654,755 $ 62,067,547
		64,722,302 $

As of December 31, 2025 and 2024, the Company had used guarantees in the amount of $28,599,990 and $34,816,902, respectively, for related parties, and guarantees under various construction contracts amounting to $19,519,874 and $21,376,392, respectively.

N. Key management compensation

Key management compensation
			For the years ended		December31,
			2025		2024
Salaries and other short-term employee benefits		$	119,109	$	90,599
Share-based payments	(		269)	(	1,077)
Post-employment benefits			951		421
Other long-term benefits			2,600		2,724
		$	122,391	$	92,667

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8. PLEDGED ASSETS

==> picture [499 x 164] intentionally omitted <==

----- Start of picture text -----

Book value
Pledged assets December 31, 2025 December 31, 2024 Purpose
Financial
assets at amortized
cost - non-current
Pledged bank deposits $ 300 $ 300 Guarantee for oil expense
and bank guarantee
Other non-current assets
Refundable deposits Guarantee for oil expense,
569,166 255,649 rent, construction contracts
$ 569,466 $ 255,949
----- End of picture text -----

9. SIGNIFICANT CONTINGENT LIABILITIES AND UNRECOGNIZED CONTRACT

COMMITMENTS

In addition to those items disclosed in Notes 6(25) and 7, the significant contingent liabilities and unrecognized contract commitments of the Company as of December 31, 2025 were as follows:

• A. Guarantee

• (a) The Company had outstanding notes payable for security deposits under various construction projects amounting to $3,836,953.

• (b) The Company had letters of guarantee for warranty and security deposits under various construction projects amounting to $95,907,421.

• (c) The Company had outstanding notes payable for bank financing amounting to $160,210,415.

• B. The Company had unused and outstanding letters of credit of $9,122.

• C. The Company had outstanding commitments for construction subcontracts and services contracts, less accounts payable that were already paid and accrued in the future, of $53,332,182.

• D. On March 31, 2014, the Company entered into the building construction undertaking agreement with Oriental Petrochemical (Taiwan) Co., Ltd. and Dayu Mechanical Engineering Co., Ltd. for the prefabricated installation construction of the above ground piping in 19 districts of Oriental Petrochemical (Taiwan) Co., Ltd. Guanyin Second Field PTA LINE 3 plant project construction which was undertaken by Oriental Petrochemical (Taiwan) Co., Ltd.. The Company generally accepted all rights and obligations of Oriental Petrochemical (Taiwan) Co., Ltd. which were arouse from this agreement. Due to the adjustment in the details of the work, the Company entered into a contract change letter with Dayu Mechanical Engineering Co., Ltd. on November 18, 2014 to extend the construction period to December 31, 2015. Subsequently, due to the insufficient number of workers from Dayu Mechanical Engineering Co., Ltd. repeatedly, the Company sent a legal attest letter to Dayu Mechanical Engineering Co., Ltd. on May 9, 2016 to terminate this contract. On May 20, 2020, Dayu Mechanical Engineering Co., Ltd. filed a complaint against the Company, claiming that it suffered the damage caused by the Company’s delay in starting the construction for 5 months and failure in fulfilling contractual obligations such as not completing the infrastructure on schedule, and

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requested for payments of $120,771 which were the total of retentions, unpaid construction payment, safety and health management fee, profit management fee and night entry assess fee paid on behalf the Company. However, the Company claimed that Dayu Mechanical Engineering Co., Ltd.’s claims had expired by prescription and if the court considers the claims had not expired then the Company will claim to offset the claims with its loss on recontracting amounting to $75,007 and Dayu Mechanical Engineering Co., Ltd.’s overdue default penalty amounting to $22,520. On December 27, 2023, the Taiwan Taipei District Court rendered a judgement with Year 2019, Zian-Zi No. 314 for the dismissal of the appeal of Dayu Corporation. Consequently, Dayu Corporation filed an appeal on January 30, 2024 regarding the three aspects, including the delay in starting the construction, damage for failure in fulfilling contractual obligations and retentions, requested the payment of $37,183. However, both parties had reached a settlement through the mediation at the Taiwan High Court in April 2025, thereby ending the case. The related losses had been recognized in accordance with the agreed settlement amount specified in the mediation record in June 2025. As of December 31, 2025, the amount has been fully paid.

E. The plaintiff, Pao An Fire Equipment Co., Ltd. (hereafter referred to as “Pao An”), which is the subcontractor of the Company, has been engaged by the Company to undertake the “Fire Protection Engineering of Taipower Talin Power Plant’s main plant” and has requested the Court for the issuance of a payment order against the Company. Pao An claimed that that Company has an outstanding final payment and an additional construction payment totaling $82,411 relative to the “Fire Protection Engineering of Taipower Talin Power Plant’s main plant”. The Company questioned the claim by Pao An, and the case was under trial with the Taiwan Taipei District Court. Pao An expanded its claim, whereby a total payment of $96,559 has been requested. The Company claimed that the amount for the additional construction payment was confirmed on the site by engineers from both parties, and shall be a few millions only. Since Pao An still has to pay the penalty for delay and defects, the Company has no obligation to pay Pao An after offsetting. On March 18, 2024, the Taiwan Taipei District Court rendered a judgement with year 2020, Zian-Zi No. 171 for the dismissal of the appeal of Pao An. Consequently, Pao An filed an appeal on April 11, 2024. The case is under trial of the Taiwan High Court.

• F. During 2025, the plaintiff, Molie Quantum Energy Corporation (Molie Quantum), filed a lawsuit against the Company and its subsidiary, CTCI Smart Engineering Corporation, claiming that the Company provided project management, design, procurement services and construction management services (disputed project services) for the new construction of Molie Quantum’s Kaohsiung Lithium Battery Plant (disputed plant) and CTCI Smart undertook the dispute plant’s electrical and mechanical system engineering (dispute electrical and mechanical system engineering). However, during a fire incident which occurred at the disputed plant on July 14, 2025, the power and fire protection system in the plant failed. Consequently, Molie Quantum claimed that the Company and CTCI Smart should be jointly liable for the damage caused by the fire incident in accordance with the regulations of the contract and Civil Law. Molie Quantum requested for a minimum compensation amounting to

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$4,625,775,000 plus interest, and reserved the right for a supplement to the claim amount before the conclusion of oral arguments in the first instance. The Company and CTCI Smart, the defendants, argued that the disputed project services provided by the Company and the disputed electrical and mechanical system engineering undertaken by CTCI Smart were both in compliance with the contracts and relevant regulations, which had passed the required reviews and inspections by the competent authorities such as fire department and construction management, and that they had obtained the usage license. In addition, the project and engineering services were inspected and accepted as qualified by Molie Quantum on April 30, 2024, for which a completion certificate was issued and handed over to Molie Quantum on the same day. When the fire incident occurred, the disputed plant had already been handed over to Molie Quantum for its own use and maintenance for over one year and two months, indicating that there were no defects in the defendants’ work. Furthermore, Molie Quantum had publicly admitted that the fire incident was caused by negligence of its employee.

This case is under trial by the Taiwan Taipei District Court. Currently, the Taiwan Taipei District Court has conducted only one preliminary proceeding, making it difficult to assess the possible loss

amount.

10. SIGNIFICANT DISASTER LOSS

None.

11. SIGNIFICANT EVENTS AFTER THE BALANCE SHEET DATE

Details of the appropriation of earnings as proposed by the Board of Directors on March 9, 2026 are provided in Note 6 (24) E.

12. OTHERS

(1) Capital risk management

There was no significant change in the reporting period. Refer to Note 12 in the consolidated financial statements for the year ended December 31, 2025.

The gearing ratios as of December 31, 2025 and 2024 were as follows:

Total borrowings Total equity Gearing ratio	December31,2025 12,290,955 $ 20,274,025 $ 60.62%	December31,2024
		12,978,845 $
		19,646,302 $
		66.06%

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(2) Financial risk of financial instruments

A. Financial instruments by category

nancial risk of financial instruments Financial instruments by category
Financial assets Financial assets at fair value through profit or loss Financial assets mandatorily measured at fair value through profit or loss Financial assets at fair value through other comprehensive income Financial assets at amortized cost Cash and cash equivalents Financial assets at amortized cost Notes receivable Accounts receivable Accounts receivable due from related parties Lease payments receivable - non-current Other receivables Other receivables due from related parties Refundable deposits Financial liabilities Financial liabilities at fair value through profit or loss Financial liabilities mandatorily measured at fair value through profit or loss Financial liabilities at amortized cost Short-term borrowings Notes payable Accounts payable Accounts payable due to related parties Other payables Other payables due to related parties Guarantee deposits received Corporate bonds payable (including current portion) Lease liability	December31,2025 4,005,496 $ 730,496 $ 26,752,059 $ 100,300 - 10,770,209 235,803 - 18,776 3,182,591 569,166 41,628,904 $ 158,706 $ - $ 24 12,403,080 1,158,108 2,818,609 4,854 449,973 12,290,955 29,125,603 $ 1,449,721 $	December31,2024
		2,416,126 $
		617,345 $
		9,455,913 $ 7,354,339 1,633 3,195,914 248,665 2,316,542 147,655 1,554,788 255,649
		24,531,098 $
		222,331 $
		2,790,000 $ - 13,168,283 1,914,665 2,006,132 11,951 419,570 10,188,845
		30,499,446 $
		1,769,804 $

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• B. Risk management policies

• (a) The Company’s activities expose it to a variety of financial risks: market risk (including foreign exchange risk, interest rate risk and price risk), credit risk and liquidity risk. The Company’s short-term borrowings and bonds payable were both at fixed interest rates, thus, there was no cash flow and fair value interest rate risk.

• (b) Risk management is carried out by a central treasury department (Company treasury) under policies approved by the Board of Directors. Company treasury identifies, evaluates and hedges financial risks in close cooperation with the Company’s operating units. The Board provides written principles for overall risk management, as well as written policies covering specific areas and matters, such as foreign exchange risk, interest rate risk, credit risk, use of derivative financial instruments and non-derivative financial instruments, and investment of excess liquidity.

• C. Significant financial risks and degrees of financial risks

• (a) Market risk

Foreign exchange risk

• i. The Company operates internationally and is exposed to exchange rate risk arising from the transactions of the Company in various functional currency, primarily with respect to the USD and EUR. Exchange rate risk arises from future commercial transactions and recognized assets and liabilities.

• ii. Management has set up a policy to require companies to manage their foreign exchange risk against their functional currency. The companies are required to hedge their entire foreign exchange risk exposure with the Company treasury.

• iii. The Company’s businesses involve some non-functional currency operations (the Company’s and certain subsidiaries’ functional currency: NTD; other certain subsidiaries’ functional currency: USD and RMB). The information on assets and liabilities denominated in foreign currencies whose values would be materially affected by the exchange rate fluctuations is as follows:

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(Foreign currency: functional currency) Financial assets Monetary items USD：NTD EUR：NTD JPY：NTD SGD：NTD INR：NTD Financial liabilities Monetary items USD：NTD EUR：NTD JPY：NTD CHF：NTD RMB：NTD (Foreign currency: functional currency) Financial assets Monetary items USD：NTD EUR：NTD RMB：NTD Financial liabilities Monetary items USD：NTD EUR：NTD JPY：NTD CHF：NTD RMB：NTD		December31,2025
	Foreign Currency Amount (In Thousands) 334,499 $ 2,216 1,480,154 631 41,717 13,697 5,157 284,395 6,689 58,471	ExchangeRate 31.4000 36.9704 0.2009 24.4187 0.3490 31.4000 36.9704 0.2009 39.7922 4.4830 December 31,2024	BookValue
			10,503,269 $ 81,926 297,363 15,408 14,559 430,086 190,656 57,135 266,170 262,125
	Foreign Currency Amount (In Thousands) 147,008 $ 1,159 7,551 27,232 9,404 343,817 5,502 58,471	ExchangeRate 32.7110 34.0521 4.4815 32.7110 34.0521 0.2076 36.3718 4.4815	BookValue
			4,804,804 $ 39,466 33,840 890,786 320,226 71,376 200,118 262,038

iv. The unrealized exchange (loss) gain arising from significant foreign exchange variation on the monetary items held by the Company for the years ended December 31, 2025 and 2024 amounted to ($145,885) and $65,498, respectively.

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• v. Analysis of foreign currency market risk arising from significant foreign exchange variation:

variation:
(Foreign currency: functional currency) Financial assets Monetary items USD：NTD EUR：NTD JPY：NTD SGD：NTD INR：NTD Financial liabilities Monetary items USD：NTD EUR：NTD JPY：NTD CHF：NTD CNY：NTD (Foreign currency: functional currency) Financial assets Monetary items USD：NTD EUR：NTD CNY：NTD Financial liabilities Monetary items USD：NTD EUR：NTD JPY：NTD CHF：NTD CNY：NTD	Degree of Variation 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%	Effect on Profit or Loss 525,163 $ 4,096 14,868 770 728 21,504 9,533 2,857 13,309 13,106 December31,2025 SensitivityAnalysis December 31,2024	Effect on Other Comprehensive Income - $ - - - - - - - - -
		SensitivityAnalysis
	Degree of Variation 5% 5% 5% 5% 5% 5% 5% 5%	Effect on Profit or Loss 240,240 $ 1,973 1,692 44,539 16,011 3,569 10,006 13,102	Effect on Other Comprehensive Income
			- $ - - - - - - -

Price risk

i. The Company’s equity securities, which are exposed to price risk, are the held financial

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assets at fair value through other comprehensive income, and financial assets at fair value through profit or loss. To manage its price risk arising from investments in equity securities, the Company diversifies its portfolio. Diversification of the portfolio is done in accordance with the limits set by the Company.

• ii. The prices of equity securities held by the Company would change due to the change of the future value of investee companies. If the prices of these equity securities had increased/decreased with all other variables held constant, the effect on post-tax profit and other comprehensive income for the years ended December 31, 2025 and 2024 is as follows:

	Year	endedDecember31,	endedDecember31,	endedDecember31,	2025
		Sensitivityanalysis
				Effect on other
	Degree of		Effect on	comprehensive
	variation	profit or loss			income
Equity instruments at fair value	2%	$	77,106	$	-
through profit or loss
Equity instruments measured at	25%		-		182,624
fair value through other
comprehensive income

Equity instruments at fair value through profit or loss Equity instruments measured at fair value through other comprehensive income	2% 25%	77,106 $ $ -	77,106 $ $ -	77,106 $ $ -	- 182,624
	Year	endedDecember31,			2024
		Sensitivityanalysis
				Effect on other
	Degree of		Effect on	comprehensive
	variation	profit or loss			income
Equity instruments at fair value	2%	$	48,216	$	-
through profit or loss
Equity instruments measured at	25%		-		154,336
fair value through other
comprehensive income

(b) Credit risk

• i. Credit risk refers to the risk of financial loss to the Company arising from default by the clients or counterparties of financial instruments on the contract obligations. According to the Company’s credit policy, each local entity in the Company is responsible for managing and analyzing the credit risk for each of their new clients before standard payment and delivery terms and conditions are offered.

• ii. Individual risk limits are controlled by internal risk that assesses the credit quality of the customers, taking into account their financial position, past experience and other factors.

• iii. The Company adopts the assumption under IFRS 9, that is, if the contract payments were past due over 30 days based on the terms, there has been a significant increase in credit risk on that instrument since initial recognition.

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• iv. The Company adopts the assumption under IFRS 9, that is, the default occurs when the customers’ contract payments are past due over 90 days.

• v. The Company classifies customers’ accounts receivable and contract assets in accordance with customer types. The Company applies the simplified approach using the provision matrix and loss rate methodology to estimate expected credit loss.

• vi. The Company used the forecastability of Taiwan Institute of Economic Research boom observation report to adjust historical and timely information to assess the default possibility of accounts receivable. On December 31, 2025 and 2024, the provision matrix is as follows:

is as follows:
			Excellent			General			Individual
			customers			customers			assessment
			(Note 1)			(Note2)			customers			Total
December31,2025
Expected loss rate			0.05%			0.05%~100%			69.65%
Total book value		$	18,592,586		$	6,639,081		$	175,928		$	25,407,595
Loss allowance	(		9,171)	(		1,813)	(		122,529)	(		133,513)
			Excellent			General			Individual
			customers			customers			assessment
			(Note1)			(Note2)			customers			Total
December31,2024
Expected loss rate			0.03%		0.13%~1.88%				100.00%
Total book value		$	4,554,770		$	1,209,664		$	122,529		$	5,886,963
Loss allowance	(		643)	(		1,037)	(		122,529)	(		124,209)

Note 1: Government institutions, state-owned enterprises and listed companies. Note 2: Companies that are not included in Note 1. and individual assessment customers. Movements in relation to the Company applying the simplified approach to provide loss allowance for accounts receivable and others are as follows:

At January 1 Provision of impairment At December 31		Accounts receivable Others 124,209 $ - $ 2,330 6,974 126,539 $ 6,974 $ 2025		2024	2024
		Accounts receivable 124,209 $ 2,330 126,539 $		Accounts receivable 3,169 $ 121,040 124,209 $	Others
					- $ -
					- $

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(c) Liquidity risk

• i. Cash flow forecasting is performed in the operating entities of the Company and aggregated by Company treasury. Company treasury monitors rolling forecasts of the Company’s liquidity requirements to ensure it has sufficient cash to meet operational needs so that the Company does not breach borrowing limits or covenants on any of its borrowing facilities. Such forecasting takes into consideration the Company’s debt financing plans, covenant compliance, and compliance with internal balance sheet ratio targets.

• ii. The table below analyses the Company’s non-derivative financial liabilities and net-settled derivative financial liabilities into relevant maturity groupings based on the remaining period at the balance sheet date to the contractual maturity date for non-derivative financial liabilities and to the expected maturity date for derivative financial liabilities. The amounts disclosed in the table are the contractual undiscounted cash flows.

Non-derivative financial liabilities:

Non-derivative financial liabilities:
December31,2025 Notes payable Accounts payable (including related parties) Other payables (including related parties) Guarantee deposits received Lease liability Bonds payable (including current portion) Non-derivative financial liabilities: December31,2024 Notes payable Accounts payable (including related parties) Other payables (including related parties) Guarantee deposits received Lease liability Bonds payable	Lessthan 1year 24 $ 13,561,188 2,823,463 - 447,710 1,852,010 Lessthan 1year - $ 15,082,948 2,018,083 - 503,466 3,063,900	Morethan 1year
		- $ - - 449,972 1,021,206 11,602,060 Morethan 1year
		- $ - - 419,570 1,294,778 7,700,000

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Derivative financial liabilities:

Derivative financial liabilities:
			Between 3 months
December31,2025	Lessthan3months			and1year
Forward exchange contracts	$	12,641	$	27,494
Merchandise exchange contract		57,335		3,541
Foreign exchange swap contract		565		5,531
Derivative financial liabilities:
			Between 3 months
December 31, 2024	Less than 3 months			and 1 year
Forward exchange contracts	$	21,382	$	53,907
Merchandise exchange contract		7,222		24,366
Foreign exchange swap contract		25,620		6,434

(3) Fair value information

• A. The different levels that the inputs to valuation techniques are used to measure fair value of financial and non-financial instruments have been defined as follows:

• Level 1: Quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity can access at the measurement date. A market is regarded as active if it meets all the following conditions: the items traded in the market are homogeneous; willing buyers and sellers can normally be found at any time; and prices are available to the public. The fair value of the Company’s investment in listed stocks, beneficiary certificates with quoted market prices is included in Level 1.

• Level 2: Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The fair value of the Company’s investment in most derivative instruments is included in Level 2.

• Level 3: Inputs for the asset or liability that are not based on observable market data.

• B. The related information on financial and non-financial instruments measured at fair value by level on the basis of the nature, characteristics and risks of the assets and liabilities are as follows: (a) The related information on the nature of the assets and liabilities is as follows:

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December31,2025 Financial assets: Financial assets at fair value through profit or loss Beneficiary certificates Derivative financial assets Equity securities Financial assets at fair value through other comprehensive income Equity securities - current Equity securities - non current Total Financial liabilities: Financial liabilities at fair value through profit or loss Derivative financial liabilities Convertible bonds - call/put options Total December 31,2024 Financial assets: Financial assets at fair value through profit or loss Beneficiary certificates Derivative financial assets Financial assets at fair value through other comprehensive income Equity securities - current Equity securities - non current Total Financial liabilities: Financial liabilities at fair value through profit or loss Derivative financial liabilities Convertible bonds - call/put options Total	Level 1 3,771,144 $ - 84,150 61,764 - 3,917,058 $ - $ - - $ Level 1 2,410,779 $ - 85,076 - 2,495,855 $ - $ - - $	Level 2 - $ 150,202 - - - 150,202 $ 107,107 $ - 107,107 $ Level 2 - $ 5,347 - - 5,347 $ 138,931 $ - 138,931 $	Level3 - $ - - - 668,732 668,732 $ - $ 51,599 51,599 $ Level 3 - $ - - 532,269 532,269 $ - $ 83,400 83,400 $	Total
				3,771,144 $ 150,202 84,150 61,764 668,732
				4,735,992 $
				107,107 $ 51,599
				158,706 $
				Total
				2,410,779 $ 5,347 85,076 532,269
				3,033,471 $
				138,931 $ 83,400
				222,331 $

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• (b) The methods and assumptions the Company used to measure fair value are as follows:

  • i. The instruments the Company used market quoted prices as their fair values (that is, Level 1) are listed below by characteristics:

    • Listed shares Open-end fund

    • Market quoted price Closing price Net asset value

  • ii. Except for financial instruments with active markets, the fair value of other financial instruments is measured by using valuation techniques or by reference to counterparty quotes.

  • iii. When assessing non-standard and low-complexity financial instruments, the Company adopts valuation technique that is widely used by market participants. The inputs used in the valuation method to measure these financial instruments are normally observable in the market.

  • iv. The valuation of derivative financial instruments is based on valuation model widely accepted by market participants, such as present value techniques and option pricing models. Forward exchange contracts are usually valued based on the current forward exchange rate.

  • v. For high-complexity financial instruments, the fair value is measured by using selfdeveloped valuation model based on the valuation method and technique widely used within the same industry. The valuation model is normally applied to derivative financial instruments, debt instruments with embedded derivatives or securitized instruments. Certain inputs used in the valuation model are not observable at market, and the Company must make reasonable estimates based on its assumptions. The effect of unobservable inputs to the valuation of financial instruments is provided in Note 12(3) G.

  • vi. The output of valuation model is an estimated value and the valuation technique may not be able to capture all relevant factors of the Company’s financial and non-financial instruments. Therefore, the estimated value derived using valuation model is adjusted accordingly with additional inputs, for example, model risk or liquidity risk, etc. In accordance with the Company’s management policies and relevant control procedures relating to the valuation models used for fair value measurement, management believes adjustment to valuation is necessary in order to reasonably represent the fair value of financial and non-financial instruments at the consolidated balance sheet. The inputs and pricing information used during valuation are carefully assessed and adjusted based on current market conditions.

  • vii. The Company takes into account adjustments for credit risks to measure the fair value of financial and non-financial instruments to reflect credit risk of the counterparty and the Company’s credit quality.

• C. There was no transfer between Level 1 and Level 2 for the years ended December 31, 2025 and 2024.

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D. Movements on Level 3 for the years ended December 31, 2025 and 2024 are as follows:

			2025	2025	2025
						Convertible
						bonds
		Equity	securities		-	call/putoptions
At January 1		$	532,269	($		83,400)
Gains and losses recognized in other
comprehensive income
Recorded as unrealized gains on
valuation of investments in equity
instruments measured at fair value
through other comprehensive
income			136,463			-
Recorded as unrealized gains on
valuation of investments in equity
instruments measured at fair value
through profit or loss			-			31,799
Conversions exercised during the year			-			2
At December 31		$	668,732	($		51,599)
			2024
						Convertible
						bonds
		Equity	securities		-	call/putoptions
At January 1		$	652,253		$	-
Recorded as unrealized losses on
valuation of investments in equity
instruments measured at fair value
through other comprehensive
income	(		119,984)			-
Issued during the year			-	(		27,600)
Recorded as unrealized gains on
valuation of investments in equity
instruments measured at fair value
through profit or loss			-	(		55,800)
At December 31		$	532,269	($		83,400)

• E. For the years ended December 31, 2025 and 2024, there was no transfer into or out from Level 3.

F. Company finance segment is in charge of valuation procedures for fair value measurements being categorized within Level 3, which is to verify independent fair value of financial instruments. Such assessment is to ensure the valuation results are reasonable by applying independent information to make results close to current market conditions, confirming the source of

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information is independent, reliable and in line with other resources, and represented as the exercisable price, and frequently calibrating valuation model, performing back-testing, updating inputs used to the valuation model and making any other necessary adjustments to the fair value.

• G. The following is the qualitative information of significant unobservable inputs and sensitivity analysis of changes in significant unobservable inputs to valuation model used in Level 3 fair value measurement:

value measurement:	ement:
Fair value at December 31, 2025 Hybrid instrument: Convertible bonds contract -liabilities 51,599 $ Non-derivative equity instrument: Unlisted shares 157,937 $ Unlisted shares 504,630 $ Unlisted shares 6,165 $	Fair value at December 31, 2025	Valuation technique Significant unobservable input Binomial Model Volatility Discount rate Market comparable companies Price to book ratio multiple, discount for lack of marketability Market comparable companies and net assets value Price to book ratio multiple, discount for lack of marketability Net assets value Not applicable	Range (weighted average)	Relationship of inputs to fairvalue
			- Median:1.22 Average:1.45 Liquidity discount: 25% Median:1.22 Average:1.23 Liquidity discount: 15% -	The higher the volatility, the higher the fair value; The higher the discount rate, the lower the fair value The higher the multiple and control premium, the higher the fair value The higher the multiple and control premium, the higher the fair value Not applicable

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Fair value at Significant Relationship December 31, Valuation unobservable Range (weighted of inputs to 2024 technique input average) fair value Hybrid instrument: Convertible $ 83,400 Binomial Volatility - The higher the bonds Model Discount rate volatility, the higher contract the fair value; The -liabilities higher the discount rate, the lower the fair value Non-derivative equity instrument: Unlisted shares $ 276,104 Market Price to book Median:1.29 The higher the comparable ratio multiple, Average:1.20 multiple and control companies discount for Liquidity discount: premium, the higher lack of 25% the fair value marketability Unlisted shares $ 256,165 Net assets Not applicable - Not applicable value

• H. The Company has carefully assessed the valuation models and assumptions used to measure fair value. However, use of different valuation models or assumptions may result in different measurements. The following is the effect on profit or loss or on other comprehensive income from financial assets and liabilities categorized within Level 3 if the inputs used to valuation models have changed:

December 31, 2025

			December	31,2025
Financial assets Equity instrument	Input	Change ± 1%	Favourable Unfavourable change change - $ - $ profitor loss Recognized in	Favourable Unfavourable change change 6,626 $ 6,626) ($ comprehensiveincome Recognized in other
	Price to book ratio multiple, discount for lack of marketability

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December 31, 2024 Recognized in Recognized in other profit or loss comprehensive income Favourable Unfavourable Favourable Unfavourable Input Change change change change change Financial assets Equity Price to book instrument ratio multiple, discount for ± 1% $ - $ - $ 2,761 ($ 2,761) lack of marketability

13. SUPPLEMENTARY DISCLOSURES

(1) Significant transactions information

• A. Loans to others: Refer to table 1.

• B. Provision of endorsements and guarantees to others: Refer to table 2.

• C. Holding of significant marketable securities at the end of the period (not including subsidiaries, associates and joint ventures): Refer to table 3.

• D Purchases or sales of goods from or to related parties reaching NT$100 million or 20% of paidin capital or more: Refer to table 4.

• E. Receivables from related parties reaching NT$100 million or 20% of paid-in capital or more: Refer to table 5.

• F. Significant inter-company transactions during the reporting period: Refer to table 6.

• (2) Information on investees

Names, locations and other information of investee companies (not including investees in Mainland China): Refer to table 7.

(3) Information on investments in Mainland China

• A. Basic information: Refer to table 8.

• B. Significant transactions, either directly or indirectly through a third area, with investee companies in the Mainland Area: None.

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Table 1

Expressed in thousands of NTD (Except as otherwise indicated)

CTCI Corporation and its subsidiaries Loans to others For the year ended December 31, 2025

Reason for short-term financing （Note 6） No. （Note 1） Creditor Borrower General ledger account （Note 2） Is a related party Maximum outstanding balance during the year ended December 31, 2025 (Note 3) Balance at December 31, 2025 （Note 8） Actual amount drawn down Interest rate Nature of loan （Note 4） Amount of transactions with the borrower （Note 5） Allowance for doubtful accounts	Collateral	Limit on loans granted to a single party （Note 7）	Ceiling on total loans granted （Note 7）	Footnote
	Item Value
0 CTCI Corp. CTCI Americas Inc. Other receivables Yes 3,675,210 $ 3,140,000 $ 3,140,000 $ 4.75%~5% 2 - $ For operational need - $ 0 CTCI Corp. CTCI STSP Water Resources Corp. Other receivables Yes 1,750,000 - - - 2 - For operational need - 0 CTCI Corp. CTCI Arabia Ltd. Other receivables Yes 314,000 314,000 - - 2 - For operational need - 0 CTCI Corp. CTCI Overseas Corp., Ltd. Other receivables Yes 502,400 502,400 - - 2 - For operational need - 1 ECOVE Environment Corp. ECOVE Solar Energy Corp. Other receivables Yes 1,200,000 1,200,000 690,000 1.91%~2% 2 - For operational need - 1 ECOVE Environment Corp. ECOVE Environmet Services Corp. Other receivables Yes 700,000 300,000 - - 2 - For operational need - 1 ECOVE Environment Corp. ECOVE Waste Management Corp. Other receivables Yes 30,000 30,000 20,000 2% 2 - For operational need - 1 ECOVE Environment Corp. ECOVE Gangshan Energy Corporation Other receivables Yes 150,000 150,000 - - 2 - For operational need - 2 CTCI Investment Corp. CTCI Development Corp. Other receivables Yes 358,000 300,000 300,000 2% 2 - For operational need - 3 CTCI Advanced System Inc. CTCI Development Corp. Other receivables Yes 150,000 40,000 - - 2 - For operational need - 4 CTCI Resources Engineering Inc. CTCI Chemical Corp. Other receivables Yes 100,000 100,000 75,000 2% 2 - For operational need - 4 CTCI Resources Engineering Inc. CTCI Advanced Systems Inc. Other receivables Yes 100,000 100,000 - - 2 - For operational need - 4 CTCI Resources Engineering Inc. CTCI Development Corp. Other receivables Yes 300,000 200,000 90,000 2% 2 - For operational need - 5 PT CTCI International Indonesia PT Gudang Gajah Lestari Other receivables Yes 14,649 14,649 14,646 6% 2 - For operational need - 6 CTCI Overseas Co., Ltd. Superiority (Thailand) Co., Ltd. Other receivables Yes 77,365 65,736 65,736 3% 2 - For operational need - 6 CTCI Overseas Co., Ltd. CIPEC Construction Inc. Other receivables Yes 423,900 423,900 423,900 6.54% 2 - For operational need - 6 CTCI Overseas Co., Ltd. CTCI Arabia Ltd. Other receivables Yes 314,000 314,000 251,200 5% 2 - For operational need - 6 CTCI Overseas Co., Ltd. CCJV P1 Engineering & Construction Sdn. Bhd. Other receivables Yes 65,556 - - - 2 - For operational need - 6 CTCI Overseas Co., Ltd. CTCI Americas Inc. Other receivables Yes 4,304,300 4,113,400 4,050,600 4.75~5% 2 - For operational need -	None - $ None - None - None - None - None - None - None - None - None - None - None - None - Guaranteed by equity interest 11,628 None - None - None - None - None -	4,054,805 $ 4,054,805 4,054,805 4,054,805 2,830,467 2,830,467 2,830,467 2,830,467 386,552 452,923 601,282 601,282 601,282 375,690 2,713,325 2,713,325 6,783,312 2,713,325 6,783,312	8,109,610 $ 8,109,610 8,109,610 8,109,610 2,830,467 2,830,467 2,830,467 2,830,467 386,552 452,923 601,282 601,282 601,282 375,690 2,713,325 2,713,325 6,783,312 2,713,325 6,783,312	- - - - - - - - - - - - - - - - - - -

Table 1 Page 1

Table 1

Expressed in thousands of NTD (Except as otherwise indicated)

Reason for short-term financing （Note 6） No. （Note 1） Creditor Borrower General ledger account （Note 2） Is a related party Maximum outstanding balance during the year ended December 31, 2025 (Note 3) Balance at December 31, 2025 （Note 8） Actual amount drawn down Interest rate Nature of loan （Note 4） Amount of transactions with the borrower （Note 5） Allowance for doubtful accounts	Collateral	Limit on loans granted to a single party （Note 7）	Ceiling on total loans granted （Note 7）	Footnote
	Item Value
6 CTCI Overseas Co., Ltd. MASTEQ Engineering Sdn. Bhd. Other receivables Yes 196,266 $ 100,480 $ - $ - 2 - $ For operational need - $ 6 CTCI Overseas Co., Ltd. CTCI Singapore Pte. Ltd. Other receivables Yes 325,030 298,300 - - 2 - For operational need - 7 CTCI Development Corp. CTCI Americas Inc. Other receivables Yes 327,780 - - - 2 - For operational need - 8 ECOVE Environment Services Corp. CTCI Development Corp. Other receivables Yes 11,000 - - - 2 - For operational need - 9 CTCI Machinery Corp. ECOVE Chiayi Energy Corp. Other receivables Yes 200,000 200,000 150,000 2% 2 - For operational need - 10 CTCI Engineering & Construction Sdn. Bhd. MASTEQ Engineering Sdn. Bhd. Other receivables Yes 77,469 77,469 57,327 3% 2 - For operational need - 11 CTCI Smart Engineering Corp. CTCI Development Corp. Other receivables Yes 150,000 150,000 150,000 2% 2 - For operational need - 11 CTCI Smart Engineering Corp. CTCI Construction Corporation Other receivables Yes 10,000 - - - 2 - For operational need -	None - $ None - None - None - None - None - None - None -	6,783,312 $ 6,783,312 324,322 707,590 232,781 156,693 264,714 264,714	6,783,312 $ 6,783,312 324,322 707,590 232,781 156,693 264,714 264,714	- - - - - - - -

Note 1: The numbers filled in for the loans provided by the Company or subsidiaries are as follows:

• (1) The Company is ‘0’.

• (2) The subsidiaries are numbered in order starting from ‘1’.

Note 2: Fill in the name of account in which the loans are recognized, such as receivables-related parties, current account with stockholders, prepayments, temporary payments, etc. Note 3: Fill in the maximum outstanding balance of loans to others during the year ended December 31, 2025.

Note 4: The numbers filled in for the nature of loans are as follows:

• (1) Business association is labeled as ‘1’.

• (2) Short-term financing is labeled as ‘2’.

Note 5: Fill in the amount of business transactions when nature of the loan is related to business transactions, which is the amount of business transactions occurred between the creditor and borrower in the current year.

Note 6: Fill in purpose of loan when nature of loan belongs to short-term financing, for example, repayment of loan, acquisition of equipment, working capital, etc.

Note 7: The calculation and amount on ceiling of loans are as follows:

[The company]

• (1) The limit on loans granted to a single party shall not exceed 20% of the Company’s net assets value.

• (2) The ceiling on total loans shall not exceed 40% of the Company’s net assets value.

• [Domestic subsidiaries and overseas subsidiaries]

• (1) The limit on loans granted to a single party by domestic subsidiaries and overseas subsidiaries shall not exceed 40% and 100% of the company net assets value, respectively.

• (2) The ceiling on total loans shall not exceed 40% and 100% of the company net assets value.

Note 8: The amounts of funds to be loaned to others which have been approved by the board of directors of a public company in accordance with Article 14, Item 1 of the “Regulations Govering Loaning of Funds and Making

• of Endorsements/Guarantees by public Companies” should be included in its published balance of loans to others at the end of the reporting period to reveal the risk of loaning the public company bears, even though they have not yet been appropriated. However, this balance should excluded the loans repaid when repayments are done subsequently to reflect the risk adjustment. In addition, if the board of directors of a public company has

• authorised the chairman to loan funds in instalments or in revolving within certain lines and within one year in accordance with Article 14, Item 2 of the “Regulations Governing Loaning of Funds and Making of Endorsements/

• Guarantees by Public Companies”, the published balance of loans to others at the end of the reporting period should also include these lines of loaning approved by the board of directors, and these lines of loaning should not be excluded from this balance even though the loans are repaid subsequently, for taking into consideration they could be loaned again thereafter.

Table 1 Page 2

CTCI Corporation and its subsidiaries Provision of endorsements and guarantees to others For the year ended December 31, 2025

Table 2

Expressed in thousands of NTD (Except as otherwise indicated)

Number （Note 1）	Endorser/ guarantor	Party being endorsed/guaranteed	Limit on endorsements/ guarantees provided for a single party （Note 3）	Maximum outstanding endorsement/ guarantee amount as of December 31, 2025 （Note 4）	Outstanding endorsement/ guarantees amount at December 31, 2025 （Note 5）	Actual amount drawn down （Note 6）	Amount of endorsements/ guarantees secured with collateral	Ratio of accumulated endorsement/ guarantee amount to net asset value of the endorser/ guarantor company	Ceiling on total amount of endorsements/ guarantees provided （Note 3）	Provision of endorsements/ guarantees by parent company to subsidiary （Note 7）	Provision of endorsements/ guarantees by subsidiary to parent company （Note 7）	Provision of endorsements/guarant ees to the party in Mainland China （Note 7）	Footnote
		Companyname Relationship with the endorser/ guarantor （Note2）
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0	CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp.	CINDA Engineering & Construction Pvt. Ltd. 2 CTCI Americas, Inc. 2 CTCI Arabia Ltd. 2 CTCI Engineering & Construction Sdn. Bhd. 2 CTCI Overseas Co., Ltd. 2 CTCI Beijing Co., Ltd. 2 CTCI Machinery Corp. 2 CTCI Singapore Pte. Ltd. 2 CTCI Shanghai Co., Ltd. 2 CTCI Vietnam Company Limited 2 MASTEQ Engineering Sdn. Bhd. 2 ECOVE Chiayi Energy Corp. 6 CTCI Investment Corp. 2 CCJV P1 Engineering & Construction Sdn. Bhd. 2 CTCI Smart Engineering Corp. 2 PT CTCI Internatioanl Indonesia 2 CTCI Chemical Corp. 2 CTCI-HDEC (Chungli) Corp. 6 CB&I-CTCI B.V. 6 CTCI (Thailand) Co., Ltd. 2 Blue Whale Water Technology Co., Ltd. 6 HDEC-CTCI (Linhai) Corp. 6 Bao Ding Reclaimed Water Co., Ltd 6 EVER ECOVE Corp. 6 CIPEC Construction Inc. 2 CTCI Malaysia Sdn. Bhd. 2 CTCI Resources Engineering Inc. 2	121,644,150 $ 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150 121,644,150	5,318,855 $ 19,498,825 1,664,200 1,059,520 3,408,596 4,790,485 10,316,440 1,936,126 236,243 827,750 336,245 1,257,775 500,000 331,100 3,274,413 2,869,891 245,014 3,215,785 1,169,328 2,471,614 220,500 900,000 586,000 948,255 260,000 132,440 512,610	4,531,647 $ 16,289,001 1,664,200 690,800 3,108,194 4,707,478 8,568,172 1,062,890 232,000 785,000 325,141 1,175,000 - - 2,149,105 2,721,673 232,360 3,125,838 1,108,937 2,437,785 122,500 630,000 586,000 948,255 - - -	219,547 $ 8,793,419 - 291,202 286,035 3,911,478 8,568,172 - - 54,509 - 50,000 - - 1,153,741 1,752,859 - 1,555,126 1,108,937 271,067 24,500 556,196 479,000 633,139 - - -	- $ - - - - - - - - - - - - - - - - - - - - - - - - - -	22.35% 80.34% 8.21% 3.41% 15.33% 23.22% 42.26% 5.24% 1.14% 3.87% 1.60% 5.80% 0.00% 0.00% 10.60% 13.42% 1.15% 15.42% 5.47% 12.02% 0.60% 3.11% 2.89% 4.68% 0.00% 0.00% 0.00%	202,740,250 $ 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250 202,740,250	Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N Y N N N N Y Y Y	N N N N N N N N N N N N N N N N N N N N N N N N N N N	N N N N N Y N N Y N N N N N N N N N N N N N N N N N N	- - - - - - - - - - - - - - - - - - - - - - - - - - -

Table 2 Page 1

Table 2

Expressed in thousands of NTD (Except as otherwise indicated)

Party being

endorsed/guaranteed

		Party being endorsed/guaranteed
Number （Note 1）	Endorser/ guarantor	Companyname Relationship with the endorser/ guarantor （Note2）	Limit on endorsements/ guarantees provided for a single party （Note 3）	Maximum outstanding endorsement/ guarantee amount as of December 31, 2025 （Note 4）	Outstanding endorsement/ guarantees amount at December 31, 2025 （Note 5）	Actual amount drawn down （Note 6）	Amount of endorsements/ guarantees secured with collateral	Ratio of accumulated endorsement/ guarantee amount to net asset value of the endorser/ guarantor company	Ceiling on total amount of endorsements/ guarantees provided （Note 3）	Provision of endorsements/ guarantees by parent company to subsidiary （Note 7）	Provision of endorsements/ guarantees by subsidiary to parent company （Note 7）	Provision of endorsements/guarant ees to the party in Mainland China （Note 7）	Footnote
1 1 1 1 1 2 3 3 3	ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Solar Power Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp.	ECOVE Solar Power Corp. 2 ECOVE Solvent Recycling Corp. 2 ECOVE Environment Services Gangshan Corp. 2 ECOVE Chiayi Energy Corp. 6 EVER ECOVE Corp. 6 ECOVE Environment Corp. 3 Jing Ding Green Energy Corp. 6 ECOVE Chiayi Energy Corp. 6 Bao Ding Reclaimed Water Co., Ltd 6	42,457,008 $ 42,457,008 42,457,008 42,457,008 42,457,008 1,928,947 10,613,844 10,613,844 10,613,844	1,251,326 $ 200,000 900,000 2,515,550 192,500 19,196 1,733,100 1,257,775 293,000	951,326 $ 200,000 900,000 2,350,000 192,500 19,196 1,733,100 1,175,000 293,000	70,039 $ - 250,000 100,000 128,530 19,196 333,570 50,000 239,500	- $ - - - - - - - -	13.44% 2.83% 12.72% 33.21% 2.72% 3.98% 97.97% 66.42% 16.56%	70,761,680 $ 70,761,680 70,761,680 70,761,680 70,761,680 2,893,420 17,689,741 17,689,741 17,689,741	N N N N N N N N N	N N N N N N N N N	N N N N N N N N N	- - - - - - - - -

Note 1: The numbers filled in for the endorsements/guarantees provided by the Company or subsidiaries are as follows:

• (1) The Company is ‘0’.

• (2) The subsidiaries are numbered in order starting from ‘1’.

• Note 2: Relationship between the endorser/guarantor and the party being endorsed/guaranteed is classified into the following seven categories; fill in the number of category each case belongs to: (1) Having business relationship.

• (2) The endorser/guarantor company owns directly or indirectly more than 50% voting shares of the endorsed/guaranteed company.

• (3) The endorsed/guaranteed company owns directly or indirectly more than 50% voting shares of the endorser/guarantor company.

• (4) The endorsed/guaranteed parent company directly or indirectly owns more than 90% voting shares of the endorser/guarantor subsidiary.

• (5) Mutual guarantee of the trade as required by the construction contract.

• (6) Due to joint venture, each shareholder provides endorsements/guarantees to the endorsed/guaranteed company in proportion to its ownership.

• (7) The performance guarantees for the sale of pre-sales contracts under the Consumer Protection Law are jointly guaranteed.

• Note 3: Fill in limit on endorsements/guarantees provided for a single party and ceiling on total amount of endorsements/guarantees provided as prescribed in the endorser/guarantor company’s

• “Procedures for Provision of Endorsements and Guarantees”, and state each individual party to which the endorsements/guarantees have been provided and the calculation for ceiling on total amount of endorsements/guarantees provided in the footnote.

• [The company]

• (1) The limit on endorsements and guarantees granted to a single party shall not exceed 600% of the Company’s net assets value in last financial statements which was audited by accountant.

• (2) The ceiling on total endorsements and guarantees shall not exceed 1,000% of the Company’s net assets value in last financial statements which was audited by accountant.

• [Domestic subsidiaries and overseas subsidiaries]

• (1) The limit on endorsements and guarantees granted to a single party shall not exceed 300% to 600% of the Company's net assets value in last financial statements which was audited by accountant.

• (2) The ceiling on total endorsements and guarantees shall not exceed 600% to 1,000% of the Company's net assets value in last financial statements which was audited by accountant.

• Note 4: Fill in the year-to-date maximum outstanding balance of endorsements/guarantees provided.

• Note 5: Once endorsement/guarantee contracts or promissory notes are signed/issued by the endorser/guarantor company to the banks, the endorser/guarantor company bears endorsement/guarantee liabilities. And all other events involve endorsements and guarantees should be included in the balance of outstanding endorsements and guarantees.

• Note 6: Fill in the actual amount of endorsements/guarantees used by the endorsed/guaranteed company.

Note 7: Fill in ‘Y’ for those cases of provision of endorsements/guarantees by listed parent company to subsidiary and provision by subsidiary to listed parent company, and provision to the party in Mainland China.

Table 2 Page 2

CTCI Corporation and its subsidiaries Holding of significant marketable securities at the end of the period (not including subsidiaries, associates and joint ventures) For the year ended December 31, 2025

Table 3

Expressed in thousands of NTD (Except as otherwise indicated)

Securities held by		Marketable Securities(Note 1)	Relationship with the securities issuer (Note 2)	General ledger account		As of December 31, 2025	As of December 31, 2025		Footnote （Note 4）
	Type	Name			Number of shares/ denominations	Book value (Note 3)	Ownership (%)	Market value
CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Smart Engineering Corp. CTCI Smart Engineering Corp. CTCI Smart Engineering Corp. ECOVE Miaoli Energy Corporation CTCI Machinery Corp. CTCI Machinery Corp. CTCI Resources Engineering Inc. CTCI Resources Engineering Inc. CTCI Resources Engineering Inc.	Fund Fund Fund Fund Fund Fund Fund Fund Common Stock Common Stock Unsecured Corporate Bond Fund Fund Fund Fund Fund Fund Fund Fund Fund	SinoPac TWD Money Market Fund Taiwan Money Market Fund Taishin 1699 Money Market Fund Capital Money Market Fund UPAMC James Bond Money Market Fund Fubon Money Market Fund Fubon Chi-Hsiang Money Market Fund Taishin Ta-Chong Money Market Fund Ever Victory Global Limited CDIB & Partners Investment Holding Corp. B9AM02-P10 ECOVE Environment Corp. 1B Taishin Ta-Chong Money Market Fund UPAMC James Bond Money Market Fund Taishin 1699 Money Market Fund UPAMC James Bond Money Market Fund UPAMC James Bond Money Market Fund Taiwan Money Market Fund UPAMC James Bond Money Market Fund Taishin Ta-Chong Money Market Fund Taishin 1699 Money Market Fund	- - - - - - - - - The Company is the supervisor Subsidiary - - - - - - - - -	Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through other comprehensive income-non-current Financial assets at fair value through other comprehensive income-non-current Financial assets at amortized cost-non- current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current Financial assets at fair value through profit or loss-current	27,235,065 48,197,266 8,649,886 17,649,551 65,582,744 19,183,718 6,036,169 17,455,631 36,405,000 27,000,000 100,000,000 17,455,426 11,450,622 7,737,534 16,089,275 19,926,568 11,831,771 34,874,354 19,817,892 7,036,482	401,020 $ 781,157 124,283 301,311 1,158,224 301,326 100,068 262,611 1,103,219 504,630 100,000 262,608 202,224 111,174 284,145 351,913 191,763 615,899 298,150 101,102	- - - - - - - - 5.88 2.48 - - - - - - - - - -	401,020 $ 781,157 124,283 301,311 1,158,224 301,326 100,068 262,611 157,937 504,630 100,000 262,608 202,224 111,174 284,145 351,913 191,763 615,899 298,150 101,102	- - - - - - - - - - - - - - - - - - - -

Note 1: Marketable securities in the table refer to stocks, bonds, beneficiary certificates and other related derivative securities in accordance with IFRS 9, ‘Financial instruments’.

Note 2: Leave the column blank if the issuer of marketable securities is non-related party. Note 3: Fill in the amount after adjusted at fair value and deducted by accumulated impairment for the marketable securities measured at fair value; fill in the acquisition cost or amortized cost deducted by accumulated impairment for the marketable securities not measured at fair value. Note 4: The number of shares of securities and their amounts pledged as security or pledged for loans and their restrictions on use under some agreements should be stated in the footnote if the securities presented herein have such conditions.

Table 3 Page 1

Table 4

Expressed in thousands of NTD (Except as otherwise indicated)

CTCI Corporation and its subsidiaries

Purchases or sales of goods from or to related parties reaching NT$100 million or 20% of paid-in capital or more For the year ended December 31, 2025

Purchaser/seller	Counterparty	Relationship with the counterparty		Tr	ansaction		Differences in t compared t trans	ransaction terms o third party action	Notes/accounts	receivable(payable)	Footnote
			Purchases(sales)	Amount	Percentage of total purchases(sales)	Credit term	Unitprice	Credit term	Balance	Percentage of total notes/accounts receivable(payable)
CTCI Corp. CTCI Smart Engineering Corp. CTCI Resources Engineering Inc. CTCI Resources Engineering Inc. CTCI Advanced System Inc. ECOVE Environment Services Corp. ECOVE Environment Services Corp. CTCI Machinery Corp. CTCI Chemical Corp. CTCI Development Corp. CTCI Construction Corporation CTCI Beijing Co., Ltd. CTCI Innovation Co., Ltd. CTCI (Thailand) Co., Ltd. CTCI Vietnam Company Limited ECOVE Chiayi Energy Corp. CTCI Corp. CTCI Corp. CTCI Machinery Corp.	ECOVE Chiayi Energy Corp. CTCI Corp. CTCI Corp. CTCI Machinery Corp. CTCI Corp. ECOVE Miaoli Energy Corp. ECOVE Environment Services Gangshan Corp. CTCI Corp. ECOVE Environment Services Corp. CTCI Corp. CTCI Corp. CINDA Engineering & Construction Ltd. CTCI Beijing Co., Ltd. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Smart Engineering Corp. CTCI Resources Engineering Inc. CTCI Resources Engineering Inc.	Subsidiary The Company The Company Subsidiary The Company Second-tier subsidiary Second-tier subsidiary The Company Second-tier subsidiary The Company The Company Second-tier subsidiary Second-tier subsidiary The Company The Company The Company Subsidiary Second-tier subsidiary Second-tier subsidiary	(Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) (Sales) Purchases Purchases Purchases Purchases	330,516) ($ 169,390) ( 762,452) ( 122,218) ( 991,522) ( 162,738) ( 610,247) ( 1,824,863) ( 260,884) ( 373,185) ( 137,413) ( 177,719) ( 140,944) ( 180,744) ( 160,165) ( 330,516 169,390 762,452 122,218	0.36% ) ( 0.18% ) ( 0.83% ) ( 0.13% ) ( 1.08% ) ( 0.18% ) ( 0.66% ) ( 1.99% ) ( 0.28% ) ( 0.41% ) ( 0.15% ) ( 0.19% ) ( 0.15% ) ( 0.20% ) ( 0.17% ) ( 0.40% 0.21% 0.92% 0.15%	30 days after monthly billings 30 days after monthly billings Based on service contract 40-60 days Based on service contract 40-60 days Based on service contract 40-60 days 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings Based on service contract 40-60 days Based on service contract 40-60 days	Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties	No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference	- $ 53,156 276,324 13,321 126,907 25,918 237,799 346,104 28,096 328 - - 4,890 22,127 20,601 - 53,156) ( 276,324) ( 13,321) (	- 0.33% 1.73% 0.08% 0.80% 0.16% 1.49% 2.17% 0.18% 0.00% - - 0.03% 0.14% 0.13% - 0.25% ) ( 1.30% ) ( 0.06% ) (	- - - - - - - - - - - - - - - - - - -

Table 4 Page 1

Table 4

Expressed in thousands of NTD (Except as otherwise indicated)

Purchaser/seller	Counterparty	Relationship with the counterparty		Tr	ansaction		Differences in t compared t trans	ransaction terms o third party action	Notes/accounts	receivable(payable)	Footnote
			Purchases(sales)	Amount	Percentage of total purchases(sales)	Credit term	Unitprice	Credit term	Balance	Percentage of total notes/accounts receivable(payable)
CTCI Corp. ECOVE Miaoli Energy Corp. ECOVE Environment Services Gangshan Corp. CTCI Corp. ECOVE Environment Services Corp. CTCI Corp. CTCI Corp. CINDA Engineering & Construction Ltd. CTCI Beijing Co., Ltd. CTCI Corp. CTCI Corp.	CTCI Advanced System Inc. ECOVE Environment Services Corp. ECOVE Environment Services Corp. CTCI Machinery Corp. CTCI Chemical Corp. CTCI Development Corp. CTCI Construction Corporation CTCI Beijing Co., Ltd. CTCI Innovation Co., Ltd. CTCI (Thailand) Co., Ltd. CTCI Vietnam Company Limited	Subsidiary Second-tier subsidiary Second-tier subsidiary Subsidiary Second-tier subsidiary Subsidiary Second-tier subsidiary Second-tier subsidiary Second-tier subsidiary Subsidiary Second-tier subsidiary	Purchases Purchases Purchases Purchases Purchases Purchases Purchases Purchases Purchases Purchases Purchases	991,522 $ 162,738 610,247 1,824,863 260,884 373,185 137,413 177,719 140,944 180,744 160,165	1.20% 0.20% 0.74% 2.21% 0.32% 0.45% 0.17% 0.22% 0.17% 0.22% 0.19%	Based on service contract 40-60 days 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings 30 days after monthly billings	Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties	No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference No significant difference	126,907) ($ 25,918) ( 237,799) ( 346,104) ( 28,096) ( 328) ( - - 4,890) ( 22,127) ( 20,601) (	0.60% ) ( 0.12% ) ( 1.12% ) ( 1.62% ) ( 0.13% ) ( 0.00% ) ( - - 0.02% ) ( 0.10% ) ( 0.10% ) (	- - - - - - - - - - -

Table 4 Page 2

CTCI Corporation and its subsidiaries Receivables from related parties reaching NT$100 million or 20% of paid-in capital or more For the year ended December 31, 2025

Table 5

Expressed in thousands of NTD (Except as otherwise indicated)

Creditor	Counterparty	Relationship with the counterparty	Balance as at December31,2025	Turnover rate	Overduereceivables	Overduereceivables	Amount collected subsequent to the balance sheetdate	Allowance for doubtfulaccounts
					Amount	Action taken
CTCI Resources Engineering Corp. CTCI Advanced System Inc. ECOVE Environment Services Corp. CTCI Machinery Corp. CTCI Corp. CTCI Smart Engineering Corp. ECOVE Environment Corp. CTCI Machinery Corp. CTCI Investment Corp. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd.	CTCI Corp. CTCI Corp. ECOVE Environment Services Gangshan Corp. CTCI Corp. CTCI Americas, Inc. CTCI Development Corp. ECOVE Solar Power Corp. ECOVE Chiayi Energy Corp. CTCI Development Corp. CIPEC CONSTRUCTION INC. CTCI Arabia Ltd. CTCI Americas, Inc.	The Company The Company Second-tier subsidiary The Company Second-tier subsidiary Subsidiary Second-tier subsidiary Subsidiary Subsidiary Second-tier subsidiary Subsidiary Second-tier subsidiary	276,324 $ 126,907 237,799 346,104 3,147,888 150,255 691,138 150,255 300,510 439,015 254,987 4,164,457	2.05 10.05 2.70 6.14 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1	- $ - - - - - - - - - - -	- - - - - - - - - - - -	- $ - - - - - - - - - - -	- $ - - - - - - - - - - -

Note 1: Represents other accounts receivable arising from capital loans, personnel secondment, and etc.

Table 5 Page 1

CTCI Corporation and its subsidiaries

Significant inter-company transactions during the reporting period For the year ended December 31, 2025

Expressed in thousands of NTD (Except as otherwise indicated)

Table 6

Number (Note 1)	Companyname	Counterparty	Relationship (Note 2)			Transaction
				General ledger account	Amount	Transaction terms	Percentage of consolidated total operating revenues or total assets(Note 3)
1 2 3 4 0 5 6 4 7 8 8 8 0 5 1 1 2 3 3 4	CTCI Resources Engineering Inc. CTCI Advanced Systems Inc. ECOVE Environment Services Corp. CTCI Machinery Corp. CTCI Corp. CTCI Smart Engineering Corporation ECOVE Environment Corp. CTCI Machinery Corp. CTCI Investment Corp. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Corp. CTCI Smart Engineering Corporation CTCI Resources Engineering Inc. CTCI Resources Engineering Inc. CTCI Advanced Systems Inc. ECOVE Environment Services Corp. ECOVE Environment Services Corp. CTCI Machinery Corp.	CTCI Corp. CTCI Corp. ECOVE Environment Services Gangshan Corp. CTCI Corp. CTCI Americas, Inc. CTCI Development Corp. ECOVE Solar Power Corp. ECOVE Chiayi Energy Corp. CTCI Development Corp. CIPEC CONSTRUCTION INC. CTCI Arabia Ltd. CTCI Americas, Inc. ECOVE Chiayi Energy Corp. CTCI Corp. CTCI Corp. CTCI Machinery Corp. CTCI Corp. ECOVE Miaoli Energy Corp. ECOVE Environment Services Gangshan Corp. CTCI Corp.	2 2 3 2 1 3 3 3 3 3 3 3 1 2 2 3 2 3 3 2	Accounts receivable Accounts receivable Accounts receivable Accounts receivable Other receivable Other receivable Other receivable Other receivable Other receivable Other receivable Other receivable Other receivable Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue	276,324 $ 126,907 237,799 346,104 3,147,888 150,255 691,138 150,255 300,510 439,015 254,987 4,164,457 330,516 169,390 762,452 122,218 991,522 162,738 610,247 1,824,863	Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties	0.20% 0.09% 0.17% 0.25% 2.25% 0.11% 0.49% 0.11% 0.21% 0.31% 0.18% 2.97% 0.36% 0.18% 0.83% 0.13% 1.08% 0.18% 0.66% 1.99%

Table 6 Page 1

Expressed in thousands of NTD (Except as otherwise indicated)

Table 6

Transaction

						Transaction
Number (Note 1)	Companyname	Counterparty	Relationship (Note 2)	General ledger account	Amount	Transaction terms	Percentage of consolidated total operating revenues or total assets(Note 3)
9 10 11 12 13 14 14 0 4 14 0 0 0 0 0 0 0 0 0 0 0 0 0	CTCI Chemical Corp. CTCI Development Corp. CTCI Construction Co., Ltd. CTCI Beijing Co., Ltd. CTCI Innovation Co., Ltd. CTCI (Thailand) Co., Ltd. CTCI Vietnam Company Limited CTCI Corp. CTCI Machinery Corp. CTCI (Thailand) Co., Ltd. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp.	ECOVE Environment Services Corp. CTCI Corp. CTCI Corp. CINDA Engineering & Construction Pvt. Ltd. CTCI Beijing Co., Ltd. CTCI Corp. CTCI Corp. CTCI Overseas Co., Ltd. CTCI Corp. CTCI Corp. CTCI Development Corp. CINDA Engineering & Construction Pvt. Ltd. CTCI Americas, Inc. CTCI Arabia Ltd. CTCI Engineering & Construction Sdn. Bhd. CTCI Overseas Co., Ltd. CTCI Beijing Co., Ltd. CTCI Machinery Corp. CTCI Singapore Pte. Ltd. CTCI Shanghai Co., Ltd. CTCI Vietnam Company Limited MASTEQ Engineering Sdn. Bhd. ECOVE Chiayi Energy Corp.	3 2 2 3 3 2 2 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1	Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue Sales revenue Advance construction receipt Advance construction receipt Advance construction receipt Refundable deposits Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee	260,884 $ 373,185 137,413 177,719 140,944 180,744 160,165 2,166,579 7,449,151 1,068,058 144,097 4,531,647 16,289,001 1,664,200 690,800 3,108,194 4,707,478 8,568,172 1,062,890 232,000 785,000 325,141 1,175,000	Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Negotiated by both parties Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable	0.28% 0.41% 0.15% 0.19% 0.15% 0.20% 0.17% 1.55% 5.32% 0.76% 0.10% Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable

Table 6 Page 2

Expressed in thousands of NTD (Except as otherwise indicated)

Table 6

Number (Note 1)	Companyname	Counterparty	Relationship (Note 2)			Transaction
				General ledger account	Amount	Transaction terms	Percentage of consolidated total operating revenues or total assets(Note 3)
0 0 0 0 0 6 6 6 6 3	CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Services Corp.	CTCI Smart Engineering Corp. PT CTCI International Indonesia CTCI Chemical Corp. CTCI-HDEC (Chungli) Corp. CTCI (Thailand) Co., Ltd. ECOVE Solar Power Corp. ECOVE Solvent Recycling Corp. ECOVE Environment Services Gangshan Corp. ECOVE Chiayi Energy Corp. ECOVE Chiayi Energy Corp.	1 1 1 1 1 3 3 3 3 3	Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee Guarantee	2,149,105 $ 2,721,673 232,360 3,125,838 2,437,785 951,326 200,000 900,000 2,350,000 1,175,000	Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable	Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable

Note 1: The numbers filled in for the transaction company in respect of inter-company transactions are as follows:

• (1) Parent company is ‘0’.

• (2) The subsidiaries are numbered in order starting from ‘1’.

• Note 2: Relationship between transaction company and counterparty is classified into the following three categories; fill in the number of category each case belongs to (If transactions between parent company and subsidiaries or between subsidiaries refer to the same transaction, it is not required to disclose twice. For example, if the parent company has already disclosed its transaction with a subsidiary, then the subsidiary is not required to disclose the transaction; for transactions between two subsidiaries, if one of the subsidiaries has disclosed the transaction, then the other is not required to disclose the transaction.):

• (1) Parent company to subsidiary.

• (2) Subsidiary to parent company.

• (3) Subsidiary to subsidiary.

• Note 3: Regarding percentage of transaction amount to consolidated total operating revenues or total assets, it is computed based on period-end balance of transaction to consolidated total assets for balance sheet accounts and based on accumulated transaction amount for the period to consolidated total operating revenues for income statement accounts.

• Note 4: The Company may decide to disclose or not to disclose transaction details in this table based on the Materiality Principle.

Table 6 Page 3

CTCI Corporation and its subsidiaries Information on investees (not including investees in Mainland China) For the year ended December 31, 2025

Table 7

Expressed in thousands of NTD (Except as otherwise indicated)

Investor	Investee (Notes 1 and 2)	Location	Main business activities	Initial invest	ment amount	Share	s held as at December 3	1,2025	Net profit (loss) of the investee for the year ended December 31, 2025 (Note 2(2))	Investment income (loss) recognized by the Company for the year ended December 31, 2025 (Note 2(3))	Footnote
				Balance as at December 31,2025	Balance as at December 31, 2024	Number of shares	Ownership (%)	Book value
CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp.	CTCI Smart Engineering Corp. CTCI Advanced Systems Inc. CTCI Development Corp. CTCI Investment Corp. ECOVE Environment Corp. CTCI (Thailand) Co., Ltd. CTCI Machinery Corp. CTCI Arabia Ltd. Sinogal-Waste Services Corp. CTCI Singapore Pte. Ltd. CTCI Overseas (BVI) Corp. CTCI Engineering & Construction Sdn.Bhd. CTCI USA Holding Inc. MASTEQ Engineering Sdn.Bhd. CCJV P1 Engineering & Construction Sdn. Bhd. CTCI-HDEC (Chungli) Corp. PT CTCI International Indonesia CTME S. A. DE C. V. ECOVE Chiayi Energy Corp. CTCI STSP Water Resources Corporation	Taiwan Taiwan Taiwan Taiwan Taiwan Thailand Taiwan Arabia Macao Singapore BVI Malaysia USA Malaysia Malaysia Taiwan Indonesia Mexico Taiwan Taiwan	Design, management, and building of nuclear power, thermal power, fire pumped storage power generation and others related to engineering Systems planning, design, integration, and engineering for various IT systems, etc. Real estate and leasing business General investment Waste disposal and other environmental services Design and building of petrochemical plant Secondary processing of steel, piping, heat treatment, manufacture of pollution control equipment and nondestructive testing, etc. Construction and maintenance of refinery, storage tanks and chemical plant Management of waste recycling site and maintenance of related mechanical and equipment, etc. Investment and planning of related engineering Investment and planning of related engineering Investment and planning of related engineering General investment Planning and design of construction projects Construction planning Sewerage System BOT Project Engineering planning as well as procurement and construction Planning and design of construction projects Waste service and waste clear Sewerage System BOT Project	$ 456,239 107,470 3,281,008 2,072,000 938,889 116,894 293,800 1,481,466 4,958 1,822,396 308,554 1,436,379 1,517,294 10,339 1,341,469 819,060 73,984 6,835 250,000 2,405,801	$ 456,239 107,470 3,281,008 2,072,000 938,889 116,894 293,800 1,481,466 4,958 996,788 308,554 1,436,379 1,517,294 10,339 1,341,469 819,060 73,984 6,835 250,000 10,000	38,834,783 12,454,461 361,454,727 207,200,000 38,457,105 1,249,500 20,000,000 35,000 - 59,800,000 6,740,000 212,130,000 495 1,500,000 203,197,500 84,354,000 341,700,000 3,600,000 25,000,000 78,000,000	97.09 43.78 100.00 100.00 52.92 49.00 100.00 98.59 30.00 100.00 100.00 99.86 16.83 100.00 99.00 51.00 79.00 60.00 25.00 100.00	$ 643,542 470,405 536,592 950,474 3,707,541 121,783 581,954 ( 120,263) 41,545 27,786 6,807,282 156,514 530,416 104,455 ( 46,055) 881,740 633,809 6,339 315,418 2,447,133	$ 219,778 459,421 ( 502,176) 40,747 1,338,035 2,164 724,238 ( 27,101) 113,956 25,109 684,739 2,541 ( 2,002,718) 87,030 21,831 44,658 267,264 ( 10) 260,079 41,330	$ 211,225 201,133 ( 519,733) 40,402 712,587 1,061 724,238 ( 27,494) 34,187 25,109 684,739 2,537 ( 345,831) 87,030 21,611 22,775 208,821 ( 6) 65,020 41,330	A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A second-tier subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary A subsidiary

Table 7 Page 1

Table 7

Expressed in thousands of NTD (Except as otherwise indicated)

Investor	Investee (Notes 1 and 2)	Location	Main business activities	Initial invest	ment amount	Share	s held as at December 3	1,2025	Net profit (loss) of the investee for the year ended December 31, 2025 (Note 2(2))	Investment income (loss) recognized by the Company for the year ended December 31, 2025 (Note 2(3))	Footnote
				Balance as at December 31,2025	Balance as at December 31, 2024	Number of shares	Ownership (%)	Book value
CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Corp. CTCI Development Corp. CTCI Development Corp. CTCI Development Corp. CTCI Development Corp. CTCI Investment Corp. CTCI Investment Corp. CTCI Investment Corp. CTCI Investment Corp. CTCI Machinery Corp. ECOVE Environment Corp. ECOVE Environment Corp.	Blue Whale Water Technology Co., Ltd. Pan Asia Corp. EVER ECOVE Corp. HDEC-CTCI (Linhai) Corp. Bao Ding Reclaimed Water Co., Ltd CTCI Chemical Corp. ECOVE Environment Corp. CINDA Engineering & Construction Private Limited CTCI USA Holding Inc. CTCI Chemical Corp. ECOVE Environment Corp. CTCI Smart Engineering Corp. CTCI Construction Corporation Boretech Resource Recovery Engineering Co., Ltd. (Cayman) ECOVE Waste Management Corp. ECOVE Wujih Energy Corp.	Taiwan Taiwan Taiwan Taiwan Taiwan Taiwan Taiwan India USA Taiwan Taiwan Taiwan Taiwan Cayman Islands Taiwan Taiwan	Wastewater Reclamation Unit BTO Project Output of foreign labor and technologies, technical cooperation with foreign construction business, and construction of engineering construction, etc. Waste service, waste clear and steam power cogeneration Reclaimed water operators Reclaimed water operators Manufacture, wholesale, and retail of industrial chemicals Waste disposal and other environmental services Chemical, petrochemical, feasibility atudy & planning, engineering design, procurement & fabrication, erection, construction & commissioning General investment Manufacture, wholesale, and retail of industrial chemicals Waste disposal and other environmental services Design, management, and building of nuclear power,thermal power, fire pumped storage power generation and others related to engineering Taiwan engineering technology services Share holding and investment International trade and environmental service of waste disposal, equipment installation and mechanical installation, etc. Environmental service of waste disposal device installation, steam power cogeneration, etc.	$ 347,889 35,826 394,000 44,998 274,803 13,522 11,270 748,143 7,951,801 32,153 1,374 11 5,000 154,744 20,000 -	$ 347,889 35,826 394,000 314,992 274,803 13,522 11,270 748,139 4,143,969 32,153 1,374 11 5,000 154,744 20,000 150,535	36,259,000 25,531,361 39,400,000 5,399,882 26,900,000 480,661 243,918 197,000,100 2,447 1,657,207 32,175 657 500,000 6,018,951 2,000,000 -	49.00 17.16 24.63 44.999 20.00 6.77 0.34 96.10 83.17 23.34 0.04 0.002 100.00 8.12 100.00 -	$ 442,908 533,329 623,550 122,800 306,775	$ 105,397 762,331 249,992 104,880 118,880 104,153 1,338,035 1,044,488 ( 2,002,718) 104,153 1,338,035 219,778 7,590 324,106 33,455 936	$ 51,643 128,964 61,146 47,196 28,094	An investee under equity method An investee under equity method An investee under equity method An investee under equity method An investee under equity method A second-tier subsidiary A subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A subsidiary A subsidiary A second-tier subsidiary An investee under equity method A second-tier subsidiary A second-tier subsidiary
								$20,827,772		$2,507,784
								23,294 23,858 1,434,472 2,622,073 69,270 2,967 7 12,252 275,560 78,418 -		7,065 4,526 1,003,728 ( 1,638,417) 13,583 456 - 7,128 28,961 33,455 936

Table 7 Page 2

Table 7

Expressed in thousands of NTD (Except as otherwise indicated)

Investor	Investee (Notes 1 and 2)	Location	Main business activities	Initial invest	ment amount	Share	s held as at December 3	1,2025	Net profit (loss) of the investee for the year ended December 31, 2025 (Note 2(2))	Investment income (loss) recognized by the Company for the year ended December 31, 2025 (Note 2(3))	Footnote
				Balance as at December 31,2025	Balance as at December 31, 2024	Number of shares	Ownership (%)	Book value
ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp. ECOVE Waste Management Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp. ECOVE Environment Services Corp.	ECOVE Environment Services Corp. ECOVE Miaoli Energy Corp. Yuan Ding Resources Management Corp. Boretech Resource Recovery Engineering Co., Ltd. (Cayman) ECOVE Solvent Recycling Corp. EVER ECOVE Corp. ECOVE Chiayi Energy Corp. Blue Whale Water Technology Co., Ltd. HDEC-CTCI (Linhai) Corp. CTCI Chemical Corp. Sinogal-Waste Services Corp. ECOVE Miaoli Energy Corp. Jing Ding Green Energy Technology Co., Ltd. ECOVE Environment Services Gangshan Corp. Jing Ding Green Energy Technology Co., Ltd. Bao Ding Reclaimed Water Co., Ltd ECOVE Resource Recycling Corp. Ecove Chiayi Energy Corporation	Taiwan Taiwan Taiwan Cayman Islands Taiwan Taiwan Taiwan Taiwan Taiwan Taiwan Macao Taiwan Taiwan Taiwan Taiwan Taiwan Taiwan Taiwan	Management of waste recycling site and maintenance of related mechanical and equipment, etc. Environmental service of waste disposal device installation, steam power cogeneration, etc. Waste service, waste clear other environmental service, and environmental pollution service, etc. Share holding and investment Operating basic chemical industry and manufacture of other chemical products Waste service, waste clear and steam power cogeneration Waste service and waste clear Wastewater Reclamation Unit BTO Project Reclaimed water operators Manufacture, wholesale, and retail of industrial chemicals Management of waste recycling site and maintenance of related mechanical equipment, etc. Environmental service of waste disposal device installation, steam power cogeneration, etc. Waste water and waste sludge disposal service Management of waste recycling site and maintenance of related mechanical and equipment, etc. Waste water and waste sludge disposal service Reclaimed water operators Resource recycling and waste disposal industry Waste service and waste clear	$ 356,518 899,985 42,696 309,489 104,179 80,000 500,000 11 2 24,851 4,964 11 215,990 251,000 10 137,402 61,750 250,000	$ 356,518 899,985 42,696 309,489 104,179 80,000 500,000 11 2 24,851 4,964 11 194,990 251,000 10 137,402 61,750 250,000	15,100,000 44,999,200 4,500,000 12,037,903 9,000,000 8,000,000 50,000,000 1,000 118 1,910,241 - 800 21,599,000 25,100,000 1,000 13,450,000 6,175,000 25,000,000	100.00 74.999 100.00 16.24 100.00 5.00 50.00 0.0014 0.001 26.905 30.00 0.001 30.00 100.00 0.001 10.00 95.00 25.00	$ 1,774,654 637,964 40,483 551,118 132,162 126,640 630,836 12 4 92,577 41,545 11 195,322 338,846 10 153,387 53,005 315,418	$ 922,447 93,029 447 324,106 19,083 249,992 260,079 105,397 104,880 104,153 113,956 93,029 ( 25,321) 78,296 ( 25,321) 118,880 ( 3,870) 260,079	$ 919,606 69,771 447 57,922 19,083 12,748 130,039 2 1 28,077 34,187 1 ( 7,596) 78,296 - 14,047 ( 3,677) 65,020	A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary An investee under equity method A second-tier subsidiary An investee under equity method A subsidiary An investee under equity method An investee under equity method A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary An investee under equity method A second-tier subsidiary An investee under equity method An investee under equity method A second-tier subsidiary A subsidiary

Table 7 Page 3

Table 7

Expressed in thousands of NTD (Except as otherwise indicated)

Investor	Investee (Notes 1 and 2)	Location	Main business activities	Initial invest	ment amount	Share	s held as at December 3	1,2025	Net profit (loss) of the investee for the year ended December 31, 2025 (Note 2(2))	Investment income (loss) recognized by the Company for the year ended December 31, 2025 (Note 2(3))	Footnote
				Balance as at December 31,2025	Balance as at December 31, 2024	Number of shares	Ownership (%)	Book value
ECOVE Environment Corporation ECOVE Environment Corporation G.D International, LLC. CTCI Overseas (BVI) Corp. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. CTCI Overseas Co., Ltd. Universal Engineering (BVI) Corp. CTCI USA Holding Inc. CTCI USA Holding Inc. Superiority (Thailand) Co., Ltd. CTCI Advanced Systems Inc. CTCI Advanced Systems Inc. CTCI Advanced Systems Inc. CTCI Smart Engineering Corp.	ECOVE Solar Power Corporation G.D. International, LLC. Lumberton Solar W2-090, LLC CTCI Overseas Co., Ltd. CTCI Arabia Ltd. Universal Engineering (BVI) Corp. CIPEC Construction Inc. CTCI Vietnam Company Limited CTCI Engineering & Construction Sdn. Bhd. CINDA Engineering & Construction Pvt. Ltd. Sumber Mampu Sdn. Bhd. Superiority (Thailand) Co., Ltd. CTCI Americas, Inc. CTME S. A. DE C. V. CTCI (Thailand) Co., Ltd. Century Ahead Ltd. CTCI Resources Engineering Inc. CTCI Flourish Long Term Care Corporation CTCI Chemical Corp.	Taiwan USA USA Hong Kong Arabia BVI Philippines Vietnam Malaysia India Malaysia Thailand USA Mexico Thailand Samoa Taiwan Taiwan Taiwan	Energy technology service Energy technology service Energy technology service Investment and planning of related engineering Construction and maintenance of refinery, storage tanks and chemical plant Investment and planning of related engineering Construction and maintenance of refinery, storage tanks and chemical plant Chemical, petrochemical, feasibility atudy & planning, engineering design, procurement & fabrication, erection, construction & commissioning Investment and planning of related engineering Chemical, petrochemical, feasibility atudy & planning, engineering design, procurement & fabrication, erection, construction & commissioning Building of related engineering Investment and planning of related engineering To extend foreign business, the Group strengthened the collaborative relationship with local business owner and supplier, developing adequate potential supplier, and help them to operate projects, purchase and other related businesses Planning and design of construction projects Design and building of petrochemical plant Professional investment company Engineering technical service Long Term Care Services Manufacture, wholesale, and retail of industrial chemicals	$ 306,000 189,197 189,197 276,815 22,610 1,694 19,590 95,168 2,879 31,022 95 151 9,444,128 4,557 117,318 25,097 1,371,132 1 7,354	$ 306,000 189,197 189,197 276,815 22,610 1,694 19,590 95,168 2,879 31,022 95 151 5,636,296 4,557 117,318 25,097 1,167,132 1 7,354	30,600,000 - - 6,740,000 500 50,000 327,445 - 300,000 7,999,900 10,000 2,156 102,932 2,400,000 1,300,500 750,000 80,073,880 Note 3 656,360	100.00 100.00 100.00 100.00 1.41 100.00 25.00 100.00 0.14 3.90 10.00 49.00 100.00 40.00 51.00 100.00 100.00 0.01 9.24	$ 482,237 552,097 552,573 6,783,312 ( 1,720) 234,138 ( 415,157) 196,039 221 58,216 ( 50,188) ( 67,649) 3,122,966 3,661 126,754 23,452 1,503,254 1 31,809	$ 18,750 18,458 18,694 684,560 ( 27,101) 11,105 ( 41,317) 108,578 2,541 1,044,488 ( 2,188) ( 1,048) ( 2,003,534) ( 10) 2,164 ( 3,716) 370,610 29 104,153	$ 18,750 18,458 18,694 684,560 ( 393) 11,105 ( 41,820) 108,578 4 40,735 ( 1,522) 7,295 ( 1,985,064) ( 8) 1,103 ( 3,716) 370,610 - 9,647	A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A subsidiary A subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary

Table 7 Page 4

Table 7

Expressed in thousands of NTD (Except as otherwise indicated)

Investor	Investee (Notes 1 and 2)	Location	Main business activities	Initial invest	ment amount	Share	s held as at December 3	1,2025	Net profit (loss) of the investee for the year ended December 31, 2025 (Note 2(2))	Investment income (loss) recognized by the Company for the year ended December 31, 2025 (Note 2(3))	Footnote
				Balance as at December 31,2025	Balance as at December 31, 2024	Number of shares	Ownership (%)	Book value
CTCI Resources Engineering Inc. CTCI Resources Engineering Inc. CTCI Resources Engineering Inc. CTCI Engineering & Construction Sdn.Bhd. Sumber Mampu Sdn. Bhd.	CTCI Chemical Corp. CTCI Resources Construction Inc. CTCI Flourish Long Term Care Corporation CTCI Malaysia Sdn. Bhd. CTCI Malaysia Sdn. Bhd.	Taiwan Taiwan Taiwan Malaysia Malaysia	Manufacture, wholesale, and retail of industrial chemicals Taiwan engineering technology services Long Term Care Services Investment and planning of related engineering Investment and planning of related engineering	$ 7,354 10,000 11,996 1,357 5,428	$ 7,354 10,000 11,996 1,357 5,428	656,360 1,000,000 Note 3 150,000 600,000	9.24 100.00 99.97 20.00 80.00	$ 31,809 10,645 11,945 4,848 21,323	$ 104,153 681 29 ( 2,033) ( 2,033)	$ 9,647 681 29 ( 342) ( 1,367)	A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary A second-tier subsidiary

Note 1: If a public company is equipped with an overseas holding company and takes consolidated financial report as the main financial report according to the local law rules,

it can only disclose the information of the overseas holding company about the disclosure of related overseas investee information.

Note 2: If situation does not belong to Note 1, fill in the columns according to the following regulations:

• (1) The columns of ‘Investee’, ‘Location’, ‘Main business activities’, Initial investment amount’ and ‘Shares held as at December 31, 2025’ should fill orderly in the Company’s (public company’s)

information on investees and every directly or indirectly controlled investee’s investment information, and note the relationship between the Company (public company) and its investee each

• (ex. direct subsidiary or indirect subsidiary) in the ‘footnote’ column.

• (2) The ‘Net profit (loss) of the investee for the year ended December 31, 2025’ column should fill in amount of net profit (loss) of the investee for this period.

• (3) The ‘Investment income (loss) recognized by the Company for the year ended December 31, 2025’ column should fill in the Company (public company) recognized investment income (loss)

of its direct subsidiary and recognized investment income (loss) of its investee accounted for under the equity method for this period. When filling in recognized investment income (loss) of its direct subsidiary, the Company (public company) should confirm that direct subsidiary’s net profit (loss) for this period has included its investment income (loss) which shall be recognized by regulations. Note 3: The investee is an associate and not required to disclose number of shares.

Table 7 Page 5

Table 8

Expressed in thousands of NTD (Except as otherwise indicated)

CTCI Corporation and its subsidiaries Information on investees (in Mainland China) For the year ended December 31, 2025

Investee in Mainland China	Main business activities	Paid-in capital	Investment method （Note 1）	Accumulated amount of remittance from Taiwan to Mainland China as of January 1, 2025	Amount remitt to Mainl Amount re to Taiwan for Decembe	ed from Taiwan and China/ mitted back the year ended r 31,2025	Accumulated amount of remittance from Taiwan to Mainland China as of December 31,2025	Net income of investee for the year ended December 31, 2025	Ownership held by the Company (direct or indirect)	Investment income recognized by the Company for the year ended December 31, 2025	Book value of investments in Mainland China as of December 31,2025	Accumulated amount of investment income remitted back to Taiwan as of December 31, 2025	Footnote
					Remitted to Mainland China	Remitted back to Taiwan
CTCI Beijing Co., Ltd. CTCI Shanghai Co., Ltd. CTCI Advanced Systems Shanghai Inc. CTCI Innovation Co., Ltd. FuJian Gulie Petrochemical Co., Ltd.	Design, survey, construction and inspection of various engineering and construction projects, plants, machinery and equipment, and environmental protection projects Design, survey, construction and inspection of various engineering and construction projects Computer technology services Computer technology services Operating in manufacturing and selling of ethylene and others	$ 433,473 592,787 20,753 22,179 30,344,536	2 2 2 2 2	$ 313,998 - 20,753 - 1,103,219	$ - - - - -	$ - - - - -	$ 313,998 - 20,753 - 1,103,219	$ 524,513 18,102 ( 3,652) 116,665 -	100.00 100.00 48.14 100.00 2.50	$ 524,513 Note 2(1) 18,102 Note 2(1) ( 1,758) Note 2(1) 116,665 Note 2(1) - -	$ 1,806,202 618,229 22,522 219,168 157,937	$ 2,109,833 23,530 31,164 - -	Note 3 Note 5 - Note 5 Note 4

Table 8 Page 1

Companyname	Accumulated amount of remittance from Taiwan to Mainland China as of December 31,2025	Investment amount approved by the Investment Commission of the Ministry of Economic Affairs(MOEA)	Ceiling on investments in Mainland China imposed by the Investment Commission of MOEA
CTCI Corp.	$ 1,437,970	2,064,207 $	15,309,834 $

Note 1: Investment methods are classified into the following three categories; fill in the number of category each case belongs to:

(1) Directly invest in a company in Mainland China.

(2) Through investing in an existing company in the third area, which then invested in the investee in Mainland China.

(3) Others

Note 2: In the Investment income (loss) recognized by the Company for the for the year ended December 31, 2025 column: Indicate the basis for investment income (loss) recognition in the number of one of the following two categories:

(1) The financial statements were audited by R.O.C. parent company's CPA.

(2) Others.

Note 3: Invested by CTCI Overseas Co., Ltd.

Note 4: Invested by Dynamic Ever Investments Limited, which was invested by Ever Victory Global Limited, and recognized as financial assets at fair value through other comprehensive income - non-current. Therefore there was no investment income (loss) recognized by the Company. Note 5: Invested by CTCI Beijing Co., Ltd.

Table 8 Page 2

CTCI CORPORATION DETAILS OF CASH AND CASH EQUIVALENTS DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 1

Item Cash on hand and petty cash Bank deposits: Checking accounts Demand deposits －USD －EUR －INR －SGD －CNY －VND －QAR －THB －KRW －NTD －Others Time depostis －USD －NTD	USD 105,540 $ rate 31.4000 EUR 2,216 rate 36.9704 INR 41,717 rate 0.3490 SGD 631 rate 24.4187 CNY 462 rate 4.4830 VND 82,965,172 rate 0.0012 QAR 5,249 rate 8.6128 THB 990 rate 0.9960 KRW 870,310 rate 0.0219 USD 116,200 $ rate 31.4000 Summary		Amount
			41,302 $ 5,377 3,308,973 81,926 14,559 15,408 2,071 99,558 45,209 986 19,060 5,935,207 300,004 9,822,961 3,642,939 13,239,480 16,882,419 26,752,059 $

Sheet 1, Page 1

CTCI CORPORATION

DETAILS OF FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS - CURRENT DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 2

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----- Start of picture text -----

Fair value
Number of Par value Price
Financial Commodities Shares/Units (in NT dollars) Amount Cost (in NT dollars) Amount
----- End of picture text -----

Fuh Hwa Global Fixed Income Fund of Funds	1,954,940	$	17.30	$	33,819	$	33,819	$	21.85	$	42,715
Allianz Global Investors Taiwan Technology Fund	29,425		339.85		10,000		10,000		378.21		11,130
Cathay Dow Jones Industrial Average ETF	69,000		51.73		3,569		3,569		55.80		3,850
Cathay U.S. PHLX Semiconductor Sector ETF	90,000		47.44		4,269		4,269		58.65		5,279
Yuanta S&P 500 ETF	97,000		58.81		5,705		5,705		68.20		6,615
Eastspring Investments European Fund	595,948		16.78		10,000		10,000		18.08		10,775
Nomura Japan Strong Leaders Fund	1,129,376		17.71		20,000		20,000		19.82		22,384
Fuh Hwa Taiwan Future 50 Active ETF	2,500,000		10.00		25,000		25,000		10.37		25,925
UPAMC Ben Teng Fund	25,175		397.22		10,000		10,000		418.31		10,531
PGIM US Investment Grade Corporate Bond
Fund	5,491,537		9.58		52,626		52,626		10.03		55,072
Fidelity Funds - Global Income Fund	175,803		398.17		70,000		70,000		463.15		81,423
Fuh Hwa 5-10 Year Investment
Grade Bond Index Fund	6,657,719		9.15		60,948		60,948		9.83		65,445
SinoPac TWD Money Market Fund	27,235,065		14.69		400,000		400,000		14.72		401,020
Taiwan Money Market Fund	48,197,266		16.15		778,185		778,185		16.21		781,157
Taishin 1699 Money Market Fund	8,649,886		14.23		123,079		123,079		14.37		124,283
Capital Money Market Fund	17,649,551		17.00		300,000		300,000		17.07		301,311
UPAMC James Bond Money Market Fund	65,582,744		17.58		1,152,753		1,152,753		17.66		1,158,224

Sheet 2, Page 1

CTCI CORPORATION

DETAILS OF FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS - CURRENT (Cont.) DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 2

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----- Start of picture text -----

Fair value
Number of Par value Price
Financial Commodities Shares/Units (in NT dollars) Amount Cost (in NT dollars) Amount
----- End of picture text -----

Fubon Money Market Fund 19,183,718 15.64 $ 300,000 $ Fubon Chi-Hsiang Money Market Fund 6,036,169 16.57 100,000 Taishin Ta-Chong Money Market Fund 17,455,631 14.93 260,644 Valuation adjustment Subtotal Equity securities - TSMC 55,000 1,410 77,558 Valuation adjustment Subtotal Derivatives Total	300,000 $ 15.71 $ 100,000 16.58 260,644 15.04 3,720,597 50,547 3,771,144 77,558 1,530.00 6,592 84,150 150,202 4,005,496 $	301,326 $ 100,068 262,611 3,771,144 - 3,771,144 84,150 150,202 4,005,496 $

Sheet 2, Page 2

CTCI CORPORATION DETAILS OF ACCOUNTS RECEIVABLE DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 3

Sheet 3
Client Name Client: Taiwan Power Company Nuclear and Fossil Power Projects Ras Laffan Petrochemicals Others Less: Allowance for bad debts	Amount 7,251,547 $ 2,681,079 964,122 10,896,748 126,539) ( 10,770,209 $	Note
		Each individual customer balance did not exceed 5% of the account balance

Sheet 3, Page 1

CTCI CORPORATION DETAILS OF CONSTRUCTION IN PROGRESS FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 4

Current change

			Currentchange
ProjectNo.		Balance at January 1, 2025 41,015,306 $ 34,129,263 25,812,331 20,778,215 26,687,190 17,740,085 12,461,658 12,167,482 10,396,061 10,260,791 18,390,706 13,940,330 7,928,094 6,011,490 5,379,123 11,266,774 4,185,126 3,757,853 4,582,385 3,798,777 128,272,548 418,961,588 418,961,588 $	Cost Project (loss) gain Completed androll-out 449) ($ 449 $ - $ 120,088 69,401) ( - 706 706) ( - 1,361 1,361) ( - 5,638,305 3,817,732) ( - 6,212) ( 29,641) ( - 447,595 7,115) ( - 25,134 41,586) ( - 2,963) ( 20,283 10,413,381) ( - 30,061 10,290,852) ( 7,668,403 3,174,656) ( - 2,774,060 542,055 - 64,936) ( 41,958 - 99,399 63,458) ( - 32,586 4,490) ( - 1,204,114 723,377 - 579) ( 31,429 - 2,323,151 652,005 - 490,491 92,827 - 187,146 16,290) ( - 30,963,925 5,936,922 19,264,073) ( 51,901,325 844,930 39,968,306) ( 364,209) ( 364,209 1,194,153 1,194,153) ( 52,731,269 $ 14,986 $ 39,968,306) ($ Shown as contract assets Shown as deduction item to contract liabilities		Balance at December 31, 2025
11 0789A 15 2200C 12 1000A 13 1500A 20 4366A 14 1758E 18 3566A 18 3366C 14 1717A 11 0570A 20 4367A 20 4218A 17 3266A 18 3688A 18 3567A 21 4700A 13 1336C 22 5000A 22 4988A 18 3618A Others Subtotal Less: Onerous contracts losses at the beginning of the Add: Onerous contracts losses at the end of the year Less: Allowance for uncollectible Total					41,015,306 $ 34,179,950 25,812,331 20,778,215 28,507,763 17,704,232 12,902,138 12,151,030 - - 22,884,453 17,256,445 7,905,116 6,047,431 5,407,219 13,194,265 4,215,976 6,733,009 5,165,703 3,969,633 145,909,322 431,739,537 6,974) ( 431,732,563 $ 217,083,011 $ 214,649,552 $

Sheet 4, Page 1

CTCI CORPORATION

DETAILS OF INVESTMENTS ACCOUNTED FOR UNDER THE EQUITY METHOD FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 5

Sheet 5
Name	Number of Shares Amount Number of Shares Amount Investment income (loss) 38,384,783 473,080 $ - 40,763) ($ 211,225 $ 12,454,461 411,900 - 142,628) ( 201,133 361,454,727 1,808,240 - 751,915) ( 519,733) ( 207,200,000 909,794 - 278 40,402 38,457,105 3,552,096 - 557,142) ( 712,587 212,130,000 145,007 - 8,970 2,537 495 436,280 - 439,967 345,831) ( 1,500,000 148,283 - 130,858) ( 87,030 84,354,000 891,107 - 32,142) ( 22,775 341,700,000 522,802 - 97,814) ( 208,821 3,600,000 5,873 - 472 6) ( 1,000,000 10,018 77,000,000 2,395,785 41,330 1,249,500 134,166 - 13,444) ( 1,061 20,000,000 696,271 - 838,555) ( 724,238 - 75,944 - 68,586) ( 34,187 6,740,000 6,347,754 - 225,211) ( 684,739 36,259,000 425,352 - 34,087) ( 51,643 19,639,509 463,284 5,891,852 58,919) ( 128,964 39,400,000 609,692 - 47,288) ( 61,146 32,399,294 373,096 26,999,412) ( 297,492) ( 47,196 26,900,000 292,813 - 14,132) ( 28,094 25,000,000 253,973 - 3,575) ( 65,020 35,000 96,312) ( - 3,543 27,494) ( 33,300,000 830,683) ( 26,500,000 833,360 25,109 203,197,500 65,112) ( - 2,554) ( 21,611 17,994,718 $ 325,270 $ 2,507,784 $ Balance at January1,2025 Additions(Reductions)	Number of Shares Ownership Amount 38,384,783 97.09% 643,542 $ 12,454,461 43.78% 470,405 361,454,727 100.00% 536,592 207,200,000 100.00% 950,474 38,457,105 52.92% 3,707,541 212,130,000 99.86% 156,514 495 16.83% 530,416 1,500,000 100.00% 104,455 84,354,000 51.00% 881,740 341,700,000 79.00% 633,809 3,600,000 60.00% 6,339 78,000,000 100.00% 2,447,133 1,249,500 49.00% 121,783 20,000,000 100.00% 581,954 - 30.00% 41,545 6,740,000 100.00% 6,807,282 36,259,000 49.00% 442,908 25,531,361 17.16% 533,329 39,400,000 24.63% 623,550 5,399,882 45.00% 122,800 26,900,000 20.00% 306,775 25,000,000 25.00% 315,418 35,000 98.59% 120,263) ( 59,800,000 100.00% 27,786 203,197,500 99.00% 46,055) ( 20,827,772 $ Balance at December 31,2025		Fair value Collateral 643,542 $ None 2,086,122 " 536,592 " 950,474 " 11,402,532 " 156,514 " 530,416 " 104,455 " 881,740 " 633,809 " 6,339 " 2,447,133 " 121,783 " 581,954 " 41,545 " 6,807,282 " 442,908 " 533,329 " 623,550 " 122,800 " 306,775 " 315,418 " 120,263) ( " 27,786 " 46,055) ( " 30,138,480 $
		Number of Shares	Ownership 97.09% 43.78% 100.00% 100.00% 52.92% 99.86% 16.83% 100.00% 51.00% 79.00% 60.00% 100.00% 49.00% 100.00% 30.00% 100.00% 49.00% 17.16% 24.63% 45.00% 20.00% 25.00% 98.59% 100.00% 99.00%
CTCI Smart Engineering Corp. CTCI Advanced Systems Inc. CTCI Development Corp. CTCI Investment Corp. ECOVE Environment Corp. CTCI Engineering & Construction Sdn. Bhd. CTCI USA Holding Inc. MASTEQ Engineering Sdn. Bhd. CTCI - HDEC (Chungli) Corp. PT CTCI International Indonesia CTME SA. DE. C. V. CTCI STSP Water Resources Corp. CTCI (Thailand) Co., Ltd. CTCI Machinery Corp. Sinogal-Waste Service Corp. CTCI Overseas (BVI) Corp. Blue Whale Water Technology Co., Ltd. Pan Asia Corp. EVER ECOVE Corp. HDEL-CTCI (Linhai) Corp. Bao Ding Reclaimed Water Co., Ltd ECOVE Chiayi Energy Corp. CTCI Arabia Ltd. CTCI Singapore Pte. Ltd. CCJV P1 Engineering & Construction Sdn. Bhd.
		38,384,783 12,454,461 361,454,727 207,200,000 38,457,105 212,130,000 495 1,500,000 84,354,000 341,700,000 3,600,000 78,000,000 1,249,500 20,000,000 - 6,740,000 36,259,000 25,531,361 39,400,000 5,399,882 26,900,000 25,000,000 35,000 59,800,000 203,197,500

Sheet 5, Page 1

CTCI CORPORATION DETAILS OF ACCOUNTS PAYABLE DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 6

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----- Start of picture text -----

Vendor name Amount Note
----- End of picture text -----

Vendor: TA YA ELECTRIC WIRE & CABLE CO., LTD. Others	2,182,875 $ 10,220,205 Each individual vendor balance did not exceed 5% of the account balance 12,403,080 $

Sheet 6, Page 1

CTCI CORPORATION DETAILS OF PARTIAL CONSTRUCTION BILLINGS FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 7

Sheet 7
ProjectNo. 11 0789A 15 2200C 12 1000A 13 1500A 20 4366A 14 1758E 18 3566A 18 3366C 14 1717A 11 0570A 20 4367A 20 4218A 17 3266A 18 3688A 18 3567A 21 4700A 13 1336C 22 5000A 22 4988A 18 3618A Others		Balance at January 1, 2025 Additions (Reductions) Completed and roll-out 41,015,333 $ - $ - $ 34,303,166 - - 25,814,729 - - 20,778,175 - - 20,618,700 4,179,687 - 17,701,780 - - 8,976,131 1,248,049 - 12,209,586 - - 10,413,381 - 10,413,381) ( 10,290,851 1 10,290,852) ( 15,460,559 5,781,707 - 12,870,372 3,828,156 - 7,948,098 - - 5,656,101 - - 5,278,470 115,996 - 13,604,002 410,846 - 4,240,347 - - 4,231,761 2,355,424 - 4,242,419 934,966 - 3,479,810 175,739 - 130,619,758 64,392,571 19,264,073) ( 409,753,529 $ 83,423,142 $ 39,968,306) ($ Shown as contract liabilities Shown as deduction item to contract assets		Balance at December 31, 2025
				41,015,333 $ 34,303,166 25,814,729 20,778,175 24,798,387 17,701,780 10,224,180 12,209,586 - - 21,242,266 16,698,528 7,948,098 5,656,101 5,394,466 14,014,848 4,240,347 6,587,185 5,177,385 3,655,549 175,748,256 453,208,365 $ 250,393,424 $ 202,814,941 $

Sheet 7, Page 1

CTCI CORPORATION STATEMENT OF OPERATING REVENUE FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 8

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----- Start of picture text -----

Items Summary Amount Note
Refining and petrochemical
project $ 35,940,727
Basic construction 12,103,786
Resources environmental 2,042,302
Others 2,590,462
$ 52,677,277
----- End of picture text -----

Sheet 8, Page 1

CTCI CORPORATION

STATEMENT OF OPERATING COSTS FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 9

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----- Start of picture text -----

Item Summary Amount
-
Balance at January 1, 2025 $
Add : Purchases 16,085,474
Less : Transferred to indirect materials ( 24,901)
-
Balance at December 31, 2025
Consumption materials 16,060,573
Consumption indirect materials 24,901
Direct labor 4,977,033
Manufacturing expenses 4,741,098
Subcontract costs 26,030,775
Input costs 51,834,380
Estimated project loss at January 1, 2025 ( 364,209)
Estimated project loss at December 31, 2025 1,194,153
Operating costs $ 52,664,324
----- End of picture text -----

Sheet 9, Page 1

CTCI CORPORATION DETAILS OF MANUFACTURING EXPENSES FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 10

Sheet 10
Item Summary Indirect labor Life insurance General insurance Professional service fee Rental expenses Travelling expenses Finance costs Pension Amortization Meals expenses Employee benefits Depreciation Utilities expenses Repairs and maintenance expenses Postage expenses Apportioned office costs Photocopier expenses Other expenses		Amount
		1,075,485 $ 276,737 229,071 36,298 331,719 373,676 305,564 162,891 99,683 101,905 59,181 509,654 317,424 33,050 14,165 30,772 14,780 769,043 4,741,098 $

Sheet 10, Page 1

CTCI CORPORATION DETAILS OF OPERATING EXPENSES FOR THE YEAR ENDED DECEMBER 31, 2025

(Expressed in thousands of New Taiwan dollars)

Sheet 11

Sheet 11
Item Payroll expenses Pension Rental expenses Office supplies expenses Travelling expenses Entertainment expenses Donation expenses (Note) Depreciation Amortization Employee benefits Professional service fee Office miscellaneous expenses Meals expenses Life insurance Training fee Postage expenses Advertising fee Miscellaneous expenses	General and administrative expenses 479,367 $ 20,208 537 2,297 13,339 8,774 23,635 43,311 238 4,320 260,567 3,724 6,818 38,952 961 1,375 1,422 198,907 1,108,752 $		Research and development expenses 90,471 $ 4,288 43 22 271 222 - 12,768 - 1,351 367 1,133 1,243 6,738 233 151 - 17,422 136,723 $		Total
					569,838 $ 24,496 580 2,319 13,610 8,996 23,635 56,079 238 5,671 260,934 4,857 8,061 45,690 1,194 1,526 1,422 216,329 1,245,475 $

Note: In May 2025, the Company contributed $15,000 cash to CTCI Education Foundation.

Sheet 11, Page 1