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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 2014-11-04 Major Shareholding Noti…
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
103年10月內部人持股異動(事後)
Major Shareholding Notification Classification · 95% confidence The document contains detailed tables listing shareholdings of insiders, including directors, supervisors, general managers, and other key personnel, with specific numbers of shares held, changes in holdings, and related notes. The content focuses on insider shareholding disclosures rather than financial results, management changes, or meeting materials. There is no indication of financial statements, earnings data, or meeting results. The document is a regulatory disclosure of insider shareholdings, which fits the category of Major Shareholding Notification (MRQ).
2014-11-04 Chinese
103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 senior management, showing their current holdings, pledged shares, and related information. It includes data on share ownership by various internal persons and related parties. There is no indication of financial statements, earnings data, or report publication. The content is focused on insider shareholdings and their changes, which aligns with the category of Director's Dealing (DIRS), which covers reports of personal share transactions by company directors and executives. The document length is about 3,000 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.
2014-11-04 Chinese
103年09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. The content is focused on insider share transactions and holdings, not on financial results, management changes, or meeting materials. There is no indication of a report publication or announcement, nor is it a certification or legal proceeding. The document is a report of personal share transactions by company directors and executives, fitting the definition of Director's Dealing (DIRS). The document length is sufficient and contains substantive data, not just an announcement or summary.
2014-10-06 Chinese
103年09月董事會成員及持股
Director's Dealing Classification · 95% confidence The document is a detailed tabulation of shareholdings and stock pledges by company insiders, including directors, supervisors, and senior management. It lists the number of shares held, pledged shares, and related percentages. The document does not contain financial statements, earnings data, or management discussion. It is a disclosure of insider shareholdings and pledges, which aligns with reporting on insider transactions or holdings. This type of document fits best under Director's Dealing (DIRS), which covers reports of personal share transactions or holdings by company directors and executives. The document length is 3027 characters, which is consistent with a detailed insider shareholding report rather than a brief announcement or a full financial report.
2014-10-06 Chinese
103年9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 (September 2014, 民國103年09月). The content is tabular and quantitative but very brief (620 characters), focusing on specific financial data related to loans and guarantees rather than comprehensive financial statements or management discussion. It does not contain full financial reports or detailed analysis, nor does it announce or reference a report publication. This type of disclosure fits best under Regulatory Filings (RNS), which covers general regulatory announcements and compliance documents that do not fit other specific categories.
2014-10-06 Chinese
103年9月營業收入
Regulatory Filings Classification · 90% confidence The document is a revenue summary report from a listed company (台勝科) showing monthly and cumulative net operating revenue figures for a specific period (民國103年09月, which corresponds to September 2014). It includes comparative figures from the previous year and percentage changes. The document is short (773 characters) and primarily provides summarized financial data without detailed financial statements or analysis. It does not appear to be a full financial report like an Annual Report (10-K) or Interim Report (IR). It also does not fit into categories like Earnings Release (ER) because it lacks key highlights or narrative commentary. The document is more of a regulatory or public disclosure of summarized financial data, typical of a Regulatory Filing (RNS) in this context, as it does not contain the full report itself but a summary or announcement of financial data.
2014-10-06 Chinese

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