Skip to main content
TASC logo

TASC — Investor Relations & Filings

Ticker · 2340 ISIN · TW0002340007 TW Manufacturing
Open in API
Filings indexed 1,920 across all filing types
Latest filing 2019-04-23 Regulatory Filings
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
本公司舉辦財務業務概況座談會
Regulatory Filings Classification · 90% confidence The document is a brief announcement about the company holding a financial business overview meeting (法人說明會), including the date, time, and location of the meeting. It does not contain actual financial statements or detailed financial data, but rather informs about the event. The document length is short (626 characters), and it directs readers to the official site for full financial information. This fits the profile of an Investor Presentation (IP) announcement or a Call Transcript (CT) if it contained the transcript. However, since this is only an announcement of the meeting and not the presentation or transcript itself, it is best classified as a Regulatory Filing (RNS) because it does not contain the actual presentation or transcript content, just the notice of the event. Therefore, the classification is Regulatory Filings (RNS) with high confidence.
2019-04-23 Chinese
108年03月內部人持股異動(事後)
Director's Dealing Classification · 95% confidence The document consists of detailed tables listing shareholdings of company insiders, including directors, managers, and their related parties. It shows the number of shares held, changes in holdings, and classifications of shares for various insiders. There is no indication of financial statements, earnings data, or management discussion. The content is focused on insider shareholdings and transactions. This 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 on insider holdings, not just an announcement or summary. Therefore, the appropriate classification is DIRS.
2019-04-10 Chinese
108年03月董事會成員及持股
Director's Dealing Classification · 95% confidence The document contains detailed tabular data about shareholdings of company insiders, including directors and executives, with specific numbers of shares held, pledged shares, and related percentages. It is a disclosure of insider shareholdings and changes, typical of a Director's Dealing or insider shareholding notification. The document is not a report or announcement of a report, nor does it contain financial statements or management commentary. It is not a voting result, nor a capital change announcement. The content matches the definition of Director's Dealing (DIRS) as it reports personal share transactions or holdings by company directors and executives.
2019-04-10 Chinese
108年3月營業收入
Fund Information / Factsheet Classification · 90% confidence The document is a summary report of monthly and cumulative net operating revenue figures for a company named 台亞, with data for March 2019 (民國108年03月). It includes percentage changes compared to the previous year and explanatory notes about accounting standards (IFRS) and reporting practices. The document is very short (776 characters) and contains no detailed financial statements or management discussion. It appears to be a brief financial summary or factsheet rather than a full financial report or earnings release. There is no indication of it being an announcement of a report publication or regulatory filing. Given the concise nature and content, the best fitting category is Fund Information / Factsheet (FS), which covers brief summaries of key company financials and market info.
2019-04-09 Chinese
108年3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 detailed information on loan balances, endorsements, and guarantees for the current and previous months, including maximum limits. The content is numerical and specific to financial data related to funding and guarantees, but it is very brief (637 characters) and does not contain comprehensive financial statements or analysis. It appears to be a regulatory disclosure or update rather than a full financial report or announcement of a report. Given the short length and nature of the data, it fits best under Regulatory Filings (RNS), which is the fallback category for miscellaneous regulatory disclosures that do not fit other specific categories.
2019-04-09 Chinese
108年03月法人說明會簡報 — 234020190313E001.pdf
Investor Presentation Classification · 95% confidence The document is a presentation dated March 14, 2019, from Opto Tech Corporation. It contains forward-looking statements, company profile, product breakdowns, consolidated financial statements (income statement and balance sheet) for 2017 and 2018, historical dividend information, and a capital expenditure plan for 2019. The content is structured as a detailed presentation with slides including financial data, product and market information, and future plans. There is no indication that this is a full annual report filing (10-K) or an earnings release (ER) since it is more comprehensive and formatted as a presentation. It is not a regulatory filing or announcement but a detailed investor-focused presentation. Therefore, the document best fits the category of an Investor Presentation (IP). The document length (7372 characters) and content support this classification with high confidence.
2019-03-13 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.