Skip to main content
FST logo

FST — Investor Relations & Filings

Ticker · 3532 ISIN · TW0003532008 TW Manufacturing
Open in API
Filings indexed 1,556 across all filing types
Latest filing 2019-03-19 Fund Information / Fact…
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
107年度存貨週轉率
Fund Information / Factsheet Classification · 85% confidence The document is very short (278 characters) and contains inventory turnover ratios and average sales days for two fiscal years (106 and 107). It appears to be a brief financial metric disclosure without detailed financial statements or comprehensive analysis. There is no indication of a full report, management discussion, or regulatory filing. Given the brevity and nature of the data, it fits best as a Fund Information / Factsheet (FS), which typically provides brief summaries of key financial metrics.
2019-03-19 Chinese
107年第4季權益變動表
Interim / Quarterly Report Classification · 85% confidence The document contains detailed financial tables showing changes in equity for a company, including items such as common stock, capital surplus, legal surplus reserve, undistributed earnings, retained earnings, and other equity items. The data is presented for the current period and the previous year, with amounts in thousands of New Taiwan Dollars. The document is titled as a 'Consolidated Statement of Changes in Equity' and includes detailed accounting data rather than just an announcement or summary. The length is 4292 characters, which is relatively short but the content is substantive financial data, not merely a notice or link to a report. There is no indication that this is a certification or a brief announcement. The document is a financial statement component typically found in an Annual Report or an Interim/Quarterly Report. However, since the data covers a full fiscal year (民國107年度, which corresponds to 2018), and includes comprehensive equity changes, it aligns more with an Annual Report component. Given the document is a detailed financial statement but not the full annual report text, it is best classified as an Interim / Quarterly Report (IR) because the document is a specific financial statement rather than the entire annual report. However, the data covers a full fiscal year, which suggests it might be part of an annual report. But since the document is only the statement of changes in equity and not the full annual report, and the length is under 5,000 characters, it is more likely a part of an Interim or Quarterly Report or a standalone financial statement. The best fit is Interim / Quarterly Report (IR) because it contains substantive financial data and analysis, not just a notice or summary.
2019-03-19 Chinese
107年度應收帳款周轉率
Regulatory Filings Classification · 90% confidence The document is very short (282 characters) and contains financial ratio data (accounts receivable turnover and average collection days) for two fiscal years (106 and 107). There is no indication of a full report, management discussion, or detailed financial statements. The content appears to be a brief financial metric disclosure, likely part of a regulatory or compliance filing rather than a full report. Given the brevity and nature, it does not qualify as an Annual Report, Interim Report, or Earnings Release. It is more consistent with a Regulatory Filing (RNS) as a general disclosure of financial information without detailed analysis or full financial statements.
2019-03-19 Chinese
107年度毛利率
Fund Information / Factsheet Classification · 90% confidence The document contains a brief financial summary with annual revenue, cost, gross profit, and gross margin percentages for two years (year 106 and 107 in the Taiwanese calendar, corresponding to 2017 and 2018). It includes a short explanation of significant changes in gross margin. The document is very short (423 characters) and appears to be a summary or factsheet rather than a full financial report. There is no indication of detailed financial statements or comprehensive analysis. It does not fit the criteria for Annual Report (10-K), Interim Report (IR), or Earnings Release (ER). Given the brief nature and summary style, it best fits the Fund Information / Factsheet (FS) category, which is for brief summaries of key company facts and financials.
2019-03-19 Chinese
108年02月內部人持股異動(事後)
Director's Dealing Classification · 95% confidence The document contains detailed tables listing shareholdings and changes in shareholdings by insiders, including directors, senior management, and major shareholders. It includes data on stock types, share counts at different times, and notes on insider identities. The content is focused on insider share transactions and holdings rather than financial results, management changes, or other corporate events. There is no indication of it being a full financial report, earnings release, or regulatory announcement. The document is a report of personal share transactions by company directors and executives (insider trades). Therefore, it fits the category of Director's Dealing (DIRS).
2019-03-06 Chinese
108年02月董事會成員及持股
Director's Dealing Classification · 95% confidence The document contains detailed tables listing shareholdings and pledged shares of company insiders, including directors, supervisors, and senior management. It focuses on the shareholding status of internal persons and related parties, with no financial statements or management discussion. The content is consistent with a report on insider share transactions or holdings. Given the focus on directors' and executives' shareholdings and the absence of other report types, this fits the definition of Director's Dealing (DIRS). The document length is short and it is not an announcement or a certification, so it is not RNS or RPA. Therefore, the classification is DIRS with high confidence.
2019-03-06 Chinese

Browse filings by year

14 years

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.