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WOOSU AMS CO., LTD. — Investor Relations & Filings

Ticker · 066590 ISIN · KR7066590001 KO Manufacturing
Open in API
Filings indexed 278 across all filing types
Latest filing 2026-05-29 Director's Dealing
Country KR South Korea
Listing KO 066590

About WOOSU AMS CO., LTD.

https://woosu.co.kr/en/

WOOSU AMS CO., LTD. is a specialized manufacturer and supplier of major automotive components. The company develops and produces a diverse portfolio of parts for both conventional and electric vehicles. Its product range includes critical components for electric vehicle systems, transmissions, engines, and interior/exterior/electronic accessories. Specific products include steering knuckles, intake manifolds, gear shift forks, engine cranks, and main shafts. Through its dedicated R&D center, the company focuses on new product development, advanced technology research, and rigorous test analysis and evaluation. This commitment to innovation and quality underpins its objective to provide comprehensive mobility solutions to the global automotive market.

Recent filings

Filing Released Lang Actions
임원ㆍ주요주주특정증권등거래계획보고서
Director's Dealing Classification · 90% confidence The document is a statutory insider trading plan report (‘임원ㆍ주요주주 특정증권등 거래계획보고서’) disclosing an executive/major shareholder’s planned transactions in the issuer’s securities. This corresponds to a Director’s Dealing filing (insider trades), not a corporate financial report or capital change by the company itself.
2026-05-29 Korean
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 95% confidence The document is titled “분기보고서” (Quarterly Report) for the 32nd term covering the period 2026-01-01 to 2026-03-31. It contains detailed financial data, operational metrics, organizational changes, capital changes, product segments, and actual numerical tables for revenue, production capacity, etc. This is a comprehensive interim report rather than an announcement or summary. Therefore it fits the definition of an Interim/Quarterly Report (IR). Q1 2026
2026-05-15 Korean
[기재정정]주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 100% confidence The document is titled '주식등의 대량보유상황보고서' which translates to 'Report on Large Shareholding Status'. It contains detailed information about the number of shares held, changes in shareholding, and related contractual details. The document includes correction details to a previously submitted large shareholding report, with specifics on share counts, ownership percentages, and acquisition methods. It is a regulatory filing related to disclosure of significant share ownership and changes thereof. This matches the definition of a Major Shareholding Notification (MRQ), which involves notification of changes in significant share ownership levels. The document is lengthy (15,000 characters) and contains substantive data, not just an announcement or certification. Therefore, the correct classification is MRQ.
2026-05-04 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Major Shareholding Notification Classification · 100% confidence The document is titled '임원ㆍ주요주주 특정증권등 소유상황보고서' which translates to 'Report on Ownership of Specific Securities by Executives and Major Shareholders.' It contains detailed information about the ownership and transactions of securities by a company executive or major shareholder, including dates, quantities, and prices of shares bought or sold. This matches the description of a Major Shareholding Notification, which reports changes in significant share ownership levels. The document is not an announcement of a report, nor is it a full financial report or management information. Therefore, the appropriate classification is Major Shareholding Notification (MRQ). The document length and content support a high confidence in this classification.
2026-04-30 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 100% confidence The document is titled '주식등의 대량보유상황보고서(일반)' which translates to 'Report on Large Shareholding Status (General)'. It contains detailed information about share ownership, changes in shareholding percentages, and related disclosures. The document references specific dates and shareholding percentages, and it is structured as a formal report to regulatory bodies such as the Financial Services Commission and the Korea Exchange. The content focuses on reporting changes in major shareholdings, including details about the reporting entity, special related parties, and the nature of shareholding changes. This matches the definition of a Major Shareholding Notification (MRQ), which involves notification of changes in significant share ownership levels crossing thresholds. The document is 8,354 characters long, which is substantive and not merely an announcement or certification. Therefore, the correct classification is MRQ with high confidence.
2026-04-30 Korean
상호변경안내
Regulatory Filings Classification · 95% confidence The document is an official announcement regarding a change of company name (from Woosu AMS to Smotronic). It details the before and after names, the reason for the change, and the date of the shareholder meeting where this was approved. Since this is a regulatory announcement regarding corporate structure/identity that does not fit into specific categories like M&A or share issuance, it falls under the general regulatory filing category.
2026-03-19 Korean

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