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TASC — Investor Relations & Filings

Ticker · 2340 ISIN · TW0002340007 TW Manufacturing
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Filings indexed 1,915 across all filing types
Latest filing 2025-05-16 Board/Management Inform…
Country TW Taiwan
Listing TW 2340

About TASC

https://www.tascsemi.com/

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
公告本公司研發主管異動
Board/Management Information Classification · 100% confidence The document is a short announcement about a change in the company's R&D supervisor, including details such as the old position holder, the reason for change (resignation), and effective date. It is clearly about a management personnel change. The document length is only 702 characters, indicating it is a brief announcement rather than a detailed report. There is no financial data or report attached. This fits the category of Board/Management Information (MANG), which covers announcements of changes in senior management or board members.
2025-05-16 Chinese
114年05月僑外投資持股
Major Shareholding Notification Classification · 95% confidence The document is a statistical table showing changes in shareholding by overseas and mainland China investors, with specific stock code and shareholding numbers before and after a shareholder meeting. It includes details on shareholding counts and types of securities issued. The document length is short (1071 characters) and it is a factual update on shareholding changes related to a shareholder meeting, not a full report or financial statement. This fits the definition of a Major Shareholding Notification (MRQ), which covers notifications of changes in significant share ownership levels.
2025-05-12 Chinese
114年4月背書保證與資金貸與
Regulatory Filings Classification · 95% confidence The document is a financial disclosure from a listed company (台亞) providing details on fund loans, endorsements, and guarantees for the current and previous month, including limits and cumulative balances. It is a short report focused on specific financial data related to capital loans and guarantees, without comprehensive financial statements or management discussion. The length is only 633 characters, indicating it is a brief regulatory disclosure rather than a full financial report. There is no indication of an earnings release, annual or interim report, or other detailed filings. This type of document fits best under Regulatory Filings (RNS), which covers general regulatory announcements and compliance disclosures that do not fit other categories.
2025-05-09 Chinese
114年4月營業收入
Fund Information / Factsheet Classification · 95% confidence The document is a summary report of monthly and cumulative operating revenue figures for a company named 台亞, presented in a tabular format with explanations about accounting standards and reporting practices. It contains no detailed financial statements, management discussion, or comprehensive analysis. The length is short (770 characters), and it does not present a full financial report but rather a brief revenue summary. This fits the definition of a Fund Information / Factsheet (FS), which is a brief summary of key company facts and financials. It is not an announcement of a report publication, nor a full annual or interim report, nor a regulatory filing or certification. Therefore, the best classification is FS with high confidence.
2025-05-09 Chinese
114年04月內部人持股異動(事後)
Director's Dealing Classification · 100% confidence The document consists of detailed tables listing shareholdings and changes in share ownership by insiders, including directors, senior management, and their related parties. It includes data on shares held at appointment, changes during the month, and current holdings. This type of disclosure is typical of insider share transactions or director dealings. There is no indication of financial statements, earnings data, or report announcements. The document is not a report publication announcement or a certification. It is a detailed insider shareholding disclosure, which fits the category of Director's Dealing (DIRS).
2025-05-06 Chinese
114年04月董事會成員及持股
Director's Dealing Classification · 95% confidence The document is a detailed tabulation of shareholdings by insiders and related parties of the company 台亞半導體股份有限公司, including directors, independent directors, and senior management. It lists current holdings, pledged shares, and related party holdings. There is no indication of financial results, earnings, management discussion, or report publication. The document is a disclosure of insider shareholdings and changes, which aligns with the category of Director's Dealing (DIRS), as it reports personal share transactions or holdings by company directors and executives. The document length is 3016 characters, which is consistent with a detailed insider shareholding report rather than a brief announcement or a full financial report. Therefore, the best classification is DIRS with high confidence.
2025-05-06 Chinese

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