Skip to main content
TASC logo

TASC — Investor Relations & Filings

Ticker · 2340 ISIN · TW0002340007 TW Manufacturing
Filings indexed 1,915 across all filing types
Latest filing 2025-08-06 Regulatory Filings
Country TW Taiwan
Listing TW 2340

Taiwan-Asia Semiconductor Corporation (TASC), formerly known as Opto Tech Corporation, is a semiconductor manufacturer specializing in optoelectronic and power components. Established in 1983, the company develops and produces sensing devices, lighting components, and power semiconductor solutions. TASC leverages silicon, III-V compounds, and wide-bandgap materials, such as Gallium Nitride (GaN) and Silicon Carbide (SiC), to serve diverse technological applications. Its product portfolio includes emitters, sensors, and power devices used in LED displays, sensing systems, and power management modules. TASC focuses on advancing semiconductor technologies for industrial, consumer, and automotive sectors, with a strategic emphasis on wide-bandgap materials and advanced packaging to support high-performance computing and artificial intelligence infrastructure.

Recent filings

Filing Released Lang Actions
依「公開發行公司資金貸與及背書保證處理準則」第二十五條 第一項第二、三款規定公告
Regulatory Filings Classification · 95% confidence The document is a regulatory announcement from a publicly listed company (2340 台亞) regarding the status of guarantees and endorsements provided by the company to its subsidiary, including financial figures and compliance with disclosure regulations. It references specific regulatory guidelines ("公開發行公司資金貸與及背書保證處理準則") and provides detailed financial data related to guarantees but does not contain a full financial report or earnings data. The document length is short (1131 characters) and is a formal disclosure of a specific financial guarantee event rather than a comprehensive financial report or earnings release. This fits best under Regulatory Filings (RNS), which covers general regulatory announcements and compliance disclosures that do not fit other specific categories.
2025-08-06 Chinese
114年第2季權益變動表
Interim / Quarterly Report Classification · 95% confidence The document contains detailed financial data specifically a consolidated statement of changes in equity for the first half of the fiscal year 114 (which corresponds to 2025 in the Gregorian calendar) and the same period last year. It includes line items such as common stock, capital surplus, legal reserve, special reserve, undistributed earnings, retained earnings, foreign currency translation adjustments, unrealized gains/losses on financial assets, treasury stock, and total equity attributable to the parent company and non-controlling interests. The presence of actual financial figures and comprehensive equity changes for a half-year period indicates this is a substantive financial report for an interim period rather than a brief announcement or certification. The document length is 4482 characters, which is sufficient for a detailed interim report. Therefore, this document is best classified as an Interim / Quarterly Report (IR).
2025-08-06 Chinese
114年第2季現金流量表
Interim / Quarterly Report Classification · 95% confidence The document contains a detailed consolidated cash flow statement for the second quarter of the 114th year (corresponding to 2025) and the same period of the previous year. It includes comprehensive financial data such as cash flows from operating, investing, and financing activities, with specific monetary amounts and accounting items. The presence of actual financial statements and substantive financial data for a period shorter than a full fiscal year indicates this is a quarterly or interim financial report. The document length is 2911 characters, which is sufficient for a detailed financial report rather than a brief announcement. There is no indication that this is an announcement of a report or a certification letter. Therefore, the document fits the definition of an Interim / Quarterly Report (IR).
2025-08-06 Chinese
114年第2季綜合損益表
Interim / Quarterly Report Classification · 95% confidence The document contains a consolidated comprehensive income statement with detailed financial data for the second quarter and half-year periods of the fiscal year 114 (Taiwan calendar year, corresponding to 2025). It includes actual financial figures such as revenue, costs, expenses, net profit/loss, and earnings per share. The presence of detailed financial statements for a quarterly period indicates this is a financial report for a period shorter than a full fiscal year. The document length is 4038 characters, which is relatively short but contains substantive financial data, not just an announcement or certification. Therefore, it fits the definition of an Interim / Quarterly Report (IR).
2025-08-06 Chinese
114年第2季資產負債表
Interim / Quarterly Report Classification · 95% confidence The document contains a consolidated balance sheet with detailed financial data for multiple periods, including specific dates such as June 30, 2025 (114年06月30日 in Taiwanese calendar), December 31, 2024, and June 30, 2024. It includes detailed asset, liability, and equity figures, which are typical components of a financial report. The document length is 4645 characters, which is sufficient to contain substantive financial data rather than just an announcement. There is no indication that this is a certification, announcement, or summary; it is a full financial statement. The presence of quarterly dates and detailed financial figures indicates this is an Interim / Quarterly Report rather than a full Annual Report or Earnings Release. Therefore, the document is best classified as an Interim / Quarterly Report (IR).
2025-08-06 Chinese
公告本公司董事會決議通過114年度第二季合併財務報告
Interim / Quarterly Report Classification · 95% confidence The document is a public announcement from a listed company (2340 台亞) reporting the board's approval of the consolidated financial report for the second quarter of the fiscal year 114 (covering 114/01/01 to 114/06/30). It includes cumulative financial figures such as revenue, gross profit, operating profit, net profit, EPS, total assets, liabilities, and equity as of the period end. The document is short (919 characters) and primarily serves as a notification of the board's resolution to approve the quarterly financial report rather than the full detailed report itself. This fits the definition of an Interim / Quarterly Report (IR) because it contains substantive financial data for a period shorter than a full fiscal year. It is not merely an announcement of report publication, nor is it a certification or a brief summary. Therefore, the correct classification is IR with high confidence.
2025-08-06 Chinese

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.