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TSE CO.,Ltd — Investor Relations & Filings

Ticker · 131290 ISIN · KR7131290009 KO Manufacturing
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Filings indexed 278 across all filing types
Latest filing 2026-02-06 Major Shareholding Noti…
Country KR South Korea
Listing KO 131290

About TSE CO.,Ltd

https://www.tse21.com/

TSE CO., Ltd. develops and manufactures semiconductor test interfaces and display inspection equipment. The company provides vertically integrated solutions for the semiconductor testing process, specializing in probe cards, interface boards, and test sockets produced entirely in-house. Its core offering is the i3unify architecture, an integrated system combining these three components to address diverse chip testing requirements for DRAM, Flash, Foundry, Logic, and SoC devices. The product portfolio includes High-Performance and Vertical MEMS Probe Cards, simulation-based Device Test Interface Boards, and optimized sockets and Change-Over Kits (COKs) for package testing. In the display sector, TSE supplies Array Test Systems (ATS), which are electrical measurement systems for advanced displays such as OLED TVs and AR/VR glass. The company's solutions are designed to deliver high accuracy and efficiency for global chipmakers and display manufacturers.

Recent filings

Filing Released Lang Actions
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 100% confidence The document is a '주식등의 대량보유상황보고서' (Report on Large Shareholding), which is a standard regulatory filing in South Korea under the Capital Markets Act. It details changes in share ownership by major shareholders and their special related parties (insiders). This type of filing is specifically categorized as a 'Major Shareholding Notification' (MRQ) in the provided schema.
2026-02-06 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is a 'Report on Ownership of Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주 특정증권등 소유상황보고서) filed with the Korean Financial Supervisory Service. This type of filing is used to report changes in share ownership by company insiders (directors/executives). According to the provided definitions, reports of personal share transactions or changes in ownership status by company directors and executives fall under the 'Director's Dealing' (DIRS) category.
2026-02-03 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is a 'Report on Ownership of Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주 특정증권등 소유상황보고서) filed with the Korean Financial Supervisory Service. This type of filing is specifically used to report changes in share ownership by company insiders (directors/executives). According to the provided definitions, 'Director's Dealing' (DIRS) is the correct category for reports of personal share transactions or changes in ownership status by company directors and executives.
2026-01-08 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is a 'Report on Ownership of Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주 특정증권등 소유상황보고서) filed with the Korean Financial Supervisory Service. This type of filing is specifically used to report insider transactions (share purchases or sales) by company directors or major shareholders. Based on the provided definitions, this falls under 'Director's Dealing' (DIRS).
2026-01-06 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is titled '임원ㆍ주요주주 특정증권등 소유상황보고서' which translates to 'Report on Ownership Status of Specific Securities by Executives and Major Shareholders.' It contains detailed information about the ownership of securities by an executive named Kim Joon Yeon, including dates, share counts, ownership percentages, and transaction details. This type of document corresponds to a report of personal share transactions or holdings by company directors and executives, which matches the definition of 'Director's Dealing' filings. The document length is 2446 characters, which is consistent with a detailed ownership report rather than a brief announcement or a full financial report. Therefore, the correct classification is 'DIRS' (Director's Dealing).
2025-10-31 Korean
자기주식처분결과보고서
Transaction in Own Shares Classification · 100% confidence The document is titled '자기주식처분결과보고서' which translates to 'Report on Disposal of Treasury Shares'. It details the disposal of treasury shares by the company (주)티에스이, including the number of shares disposed, disposal price, dates, and related parties. The document is a formal report submitted to the Financial Supervisory Service (금융감독원장 귀하) in South Korea. It is not an announcement of a report publication, nor is it a full financial report or earnings release. It specifically reports on the company's disposal of its own shares, which fits the category of 'Transaction in Own Shares'. The document length is 1930 characters, which is consistent with a detailed transaction report rather than a brief announcement or a full annual/interim report.
2025-10-20 Korean

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