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KOSTECSYS. CO., LTD. — Investor Relations & Filings

Ticker · 355150 ISIN · KR7355150004 KO Manufacturing
Open in API
Filings indexed 196 across all filing types
Latest filing 2025-03-26 Declaration of Voting R…
Country KR South Korea
Listing KO 355150

About KOSTECSYS. CO., LTD.

https://www.kostec.net/en/

KOSTECSYS is a manufacturer of advanced thermal management and packaging solutions for the semiconductor industry. The company specializes in components for next-generation power semiconductors, including SiC and GaN devices, leveraging its proprietary KCMC® low-thermal expansion, high-heat dissipation materials. Its core products include thermal matching packages, heat spreaders, base plates, spacers, and liquid cold plates. KOSTECSYS also provides specialized packages for high-power laser diodes, photonic integrated circuits, and high-frequency MMICs, as well as components such as current sensor shunt resistors.

Recent filings

Filing Released Lang Actions
정기주주총회결과
Declaration of Voting Results & Voting Rights Announcements Classification · 1% confidence The document is titled '정기주주총회결과' (Annual General Meeting Results) and provides a detailed breakdown of the resolutions passed during the meeting, including financial statement approval, director appointments, and remuneration limits. This aligns perfectly with the definition of a Declaration of Voting Results & Voting Rights Announcement (DVA), which reports the official outcomes of shareholder votes at a general meeting.
2025-03-26 Korean
감사보고서제출
Audit Report / Information Classification · 1% confidence The document is a regulatory filing from the Korea Exchange (KRX) system titled 'Audit Report Submission' (감사보고서 제출). It provides the audit opinion, key financial data, and auditor information for the fiscal year. While it contains financial data, it is a summary disclosure of the audit results rather than the full annual report (10-K) or a standalone audit report (AR). According to the 'Menu vs Meal' rule, this is a formal regulatory announcement of the audit report's submission, making it a Regulatory Filing (RNS). FY 2024
2025-03-18 Korean
사업보고서 (2024.12)
Audit Report / Information Classification · 1% confidence The document is a formal 'Audit Report' (감사보고서) for the company '주식회사 코스텍시스' (Costechsys Co., Ltd.) for the fiscal year ending December 31, 2024. It includes the independent auditor's report, financial statements (Statement of Financial Position, Statement of Comprehensive Income, Statement of Changes in Equity, Statement of Cash Flows), and detailed notes to the financial statements. This is a comprehensive financial report, not an announcement of a report, and it is distinct from a full 10-K (which typically includes management discussion and analysis, business descriptions, etc., in a specific regulatory format). In the context of the provided categories, this document is best classified as an Audit Report (AR). FY 2024
2025-03-18 Korean
임원ㆍ주요주주특정증권등거래계획보고서
Director's Dealing Classification · 1% confidence The document is a 'Report on Trading Plan for Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주특정증권등거래계획보고서) filed by an executive (CEO) of Kostechsys. This document outlines a planned transaction (a gift of shares) by an insider. In the context of financial filings, reports detailing insider trading plans or transactions are classified under 'Director's Dealing' (DIRS), as they pertain to the personal share transactions of company directors and executives.
2025-03-17 Korean
임원ㆍ주요주주특정증권등거래계획보고서
Director's Dealing Classification · 1% confidence The document is a 'Report on Trading Plan for Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주특정증권등거래계획보고서) filed by an executive (Han Tae-seong) of Kostechsys. This type of filing is a regulatory requirement for insiders to disclose their future trading plans for company securities. In the context of the provided categories, this falls under 'Director's Dealing' (DIRS), which covers reports of share transactions or trading plans by company directors and executives.
2025-03-17 Korean
[기재정정]단일판매ㆍ공급계약체결
Regulatory Filings Classification · 1% confidence The document is a regulatory filing from the Korea Exchange (KRX) regarding a 'Correction Report' (정정신고) for a 'Single Sale/Supply Contract' (단일판매ㆍ공급계약체결). It details changes to the contract amount due to the completion of delivery. Since this is a specific regulatory disclosure regarding a material contract update that does not fit into categories like financial reports, dividends, or board changes, it falls under the general regulatory filing category.
2025-03-14 Korean

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