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FST — Investor Relations & Filings

Ticker · 3532 ISIN · TW0003532008 TW Manufacturing
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Filings indexed 1,556 across all filing types
Latest filing 2017-11-10 Director's Dealing
Country TW Taiwan
Listing TW 3532

About FST

www.fstech.com.tw

Formosa Sumco Technology Corporation (FST) is a joint venture established in 1995 between the Formosa Plastics Group and Japan's SUMCO Corporation. The company specializes in the production and manufacturing of high-quality 8-inch and 12-inch silicon wafers, which serve as essential substrates for integrated circuits and electronic components. FST leverages advanced manufacturing technologies and rigorous quality management systems to provide high-purity silicon materials to global semiconductor manufacturers. The company is recognized for its operational excellence and commitment to environmental, social, and governance (ESG) standards, consistently achieving high ratings in sustainability assessments such as the CDP "A" list and inclusion in major sustainability indices. By combining the industrial resources and technical expertise of its parent organizations, FST maintains a leading position in the supply of critical semiconductor materials.

Recent filings

Filing Released Lang Actions
106年11月內部人持股轉讓(事前)
Director's Dealing Classification · 100% confidence The document contains tabular data about share transactions by an insider (監察人本人) of the company 台勝科, including details such as transfer methods, number of shares transferred, and holding changes. This matches the description of a Director's Dealing report, which reports personal share transactions by company directors and executives (insider trades). The document is not a general regulatory announcement or a report publication announcement, but a specific insider transaction disclosure.
2017-11-10 Chinese
106年10月內部人持股異動(事後)
Director's Dealing Classification · 95% confidence The document consists of detailed tables listing shareholdings and changes in shareholdings by insiders, including directors, supervisors, general managers, and other key personnel. It includes data on shares held at appointment, changes during the month, and current holdings, with notes on identity and roles. This type of document is a report on insider share transactions or holdings by company directors and executives. There is no indication of it being a full financial report, earnings release, or other types of filings. The content matches the definition of Director's Dealing (DIRS), which reports personal share transactions by company directors and executives (insider trades). The document length is sufficient and contains substantive data, not just an announcement or certification. Therefore, the correct classification is DIRS with high confidence.
2017-11-08 Chinese
106年10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, including directors, supervisors, and management, showing their current holdings, pledged shares, and related information. It includes explanations about the absence of certain managerial roles and clarifications on shareholding calculations. There is no indication of financial statements, earnings data, or report publication announcements. The content focuses on insider shareholdings and related disclosures, 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 3080 characters, which is relatively short but contains detailed insider shareholding data rather than a mere announcement. Therefore, the best fit is DIRS.
2017-11-08 Chinese
106年10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 (台勝科) providing information about fund lending balances and endorsement guarantees for a specific month (October 2017, 民國106年10月). The content is tabular and quantitative but very brief (620 characters), focusing on financial data related to loans and guarantees rather than a full financial report or management discussion. It does not contain comprehensive financial statements or detailed analysis typical of Annual Reports (10-K) or Interim Reports (IR). It also does not announce a report publication or voting results. Given the nature of the data and the short length, this fits best as a Regulatory Filing (RNS), which covers general regulatory announcements and miscellaneous filings that do not fit other categories.
2017-11-06 Chinese
106年10月營業收入
Regulatory Filings Classification · 90% confidence The document is a summarized revenue report for a company named 台勝科 for the month of October in 民國106年 (which corresponds to 2017). It provides monthly and cumulative revenue figures compared to the previous year, with percentage changes and notes on accounting standards (IFRS). The document is very short (780 characters) and contains only summarized financial data without detailed financial statements or analysis. It appears to be a regulatory disclosure of monthly revenue figures rather than a full interim or annual report. Given the short length and nature of the data, it fits best as a Regulatory Filing (RNS) rather than an Interim Report (IR) or Annual Report (10-K).
2017-11-06 Chinese
106年10月內部人持股轉讓(事前)
Director's Dealing Classification · 100% confidence The document contains a table detailing a share transfer by an insider (監察人本人) of a company (台勝科) with specifics on the number of shares to be transferred, transfer method, and dates. This is a report of a personal share transaction by a company director or executive, which fits the definition of Director's Dealing filings. The document is short and focused solely on insider share transactions, with no financial statements or other report types mentioned.
2017-10-27 Chinese

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