BORETECH-KY — Proxy Solicitation & Information Statement 2026

May 21, 2026

BORETECH Resource Recovery Engineering Co., Ltd.
Meeting Notice for 2026 Annual shareholders’ Meeting
(Summary Translation)

1. Meeting Time: 10:00 a.m., Tuesday, June 23, 2026
   Place of Meeting: No. 3, Guiren 12th Rd., Guiren Dist., Tainan City (Greater Tainan Convention Center - Nusantara Room)
   Meeting Type: Physical shareholders’ meeting

2. The agenda for the Meeting is as follows:

Report Items
(1) The Company's business report of 2025.
(2) The Audit Committee's review report of 2025.
(3) The directors and employees' compensation of 2025.

Ratification Items
(1) Adoption of the Company's 2025 business report and financial statements.
(2) Adoption of the Company's distribution of 2025 profits.

Discussion Items
(1) Approval of the amendment to the Company's "Amended and Restated Memorandum and Articles of Association".
(2) Approval of the amendment to the Company's "Procedures for Acquisition or Disposal of Assets".
(3) Approval of the amendment to the Company's "Rules of Procedure for Shareholder Meetings".

Election Items: Proposal for a Full Re-election of Directors (Including Independent Directors).

Other Items: Proposal to Release the Newly Elected Directors and Their Representatives from Non-competition Restrictions.

Special Motions

1. The Board of Directors has proposed the distribution of cash dividends for the year 2024. A

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cash dividend of NT$ 2.42210661 per share is proposed. Upon approval by the Annual General Meeting of Shareholders, the Chairman will be authorized to determine the record date for dividend distribution. The actual payout ratio will be adjusted based on the total number of outstanding shares on the record date.

1. For the main agenda items of this Shareholders' Meeting, any matters governed by Article 172 of the Company Act or Article 26-1 of the Securities and Exchange Act will be disclosed not only in the meeting notice but also in detail on the Market Observation Post System (MOPS). Please refer to: https://mops.twse.com.tw.

2. In accordance with Article 165 of the Company Act, the shareholders' register will be closed for changes from April 25, 2026 to June 23, 2026. For matters related to share registration (e.g., submitting a specimen seal card), please contact the Stock Affairs Department of Taishin Securities Co., Ltd.

3. If shareholders solicit proxies, the Company will compile a summary table of the solicitor's solicitation materials and disclose it on the Securities and Futures Institute (SFI) website before May 22, 2026. Investors wishing to make an inquiry can directly visit the website (https://free.sfi.org.tw) and enter their search criteria. The institution appointed by the Company for the statistical verification of proxies is the Stock Affairs Department of Taishin Securities Co., Ltd.

4. At this Shareholders' Meeting, a full re-election of 8 Directors (including 4 Independent Directors) will be conducted. The candidate list under the nomination system is as follows: Directors: OU Che-Wen; Representative of ECOVE Environment Corporation: TIAO Hsiu-Hua; Representative of BRAINTREE INDUSTRIES LIMITED: KO Yung-Chun; Representative of GUANG SHUN PETTECHS FIBRE INDUSTRY L.L.C.: OU Po-Hao. Independent Directors: HSU Wen-Kuan; TSAO Mihn; LIN Hui-Ping; HUANG Kuo-Ming. Shareholders who wish to inquire about their educational backgrounds and professional experiences may visit the "Announcement Search" section of the Market Observation Post System (MOPS) website (https://mops.twse.com.tw).

5. In addition to the public announcement on MOPS, this notice is hereby formally served. Enclosed are one attendance card and one proxy form. If you intend to attend in person, please sign or affix your seal on the third copy of the "Attendance Card" and bring it to the meeting venue on the day of the meeting (do not mail it back). If you intend to appoint a

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proxy, please sign or seal the proxy form, fill in the required information of the proxy, and ensure it is delivered to the Stock Affairs Department of Taishin Securities Co., Ltd. at least five days before the meeting.

1. Shareholders may also exercise their voting rights electronically. The electronic voting period will be from May 23, 2026 to June 20, 2026. Please log in to the Taiwan Depository & Clearing Corporation’s "Stock e-Services / e-Voting" platform and follow the instructions to vote. (https://stockservices.tdcc.com.tw)

2. Shareholders attending the meeting are kindly requested to bring personal identification for verification.

3. Please be advised and take appropriate actions accordingly.

Board of Directors
BORETECH Resource Recovery Engineering Co., Ltd.