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SEJIN HEAVY INDUSTRIES CO., LTD. — Investor Relations & Filings

Ticker · 075580 ISIN · KR7075580001 KO Manufacturing
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Filings indexed 302 across all filing types
Latest filing 2026-03-13 Major Shareholding Noti…
Country KR South Korea
Listing KO 075580

About SEJIN HEAVY INDUSTRIES CO., LTD.

http://www.sejinheavy.com/eng_main.asp

Sejin Heavy Industries Co., Ltd. is a manufacturer specializing in large-scale components for the shipbuilding and renewable energy sectors. The company's primary products for the shipbuilding industry include mega-sized deck houses, which serve as the living and operational quarters on vessels, and specialized cargo tanks for Liquefied Petroleum Gas (LPG) and Liquefied Natural Gas (LNG) carriers. It also produces other large structural components such as upper deck units. Leveraging its expertise in heavy steel structure fabrication, the company has expanded its portfolio to include components for the wind power industry. Sejin Heavy Industries is recognized for its technical capabilities in manufacturing large, complex structures, serving major shipbuilders and energy project developers globally.

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, specifically regarding collateral agreements (pledges) by major shareholders of Sejin Heavy Industries. This falls under the category of Major Shareholding Notification (MRQ) as it tracks significant ownership and changes in control-related holdings.
2026-03-13 Korean
매출액또는손익구조30%(대규모법인은15%)이상변경
Earnings Release Classification · 95% confidence The document is a regulatory filing from a Korean company (Sejin Heavy Industries) announcing a significant change in financial results (revenue or profit/loss structure change of 30% or more). This is a standard preliminary earnings announcement required by the Korea Exchange (KRX) for listed companies. Since it provides key financial highlights (revenue, operating profit, net income) before the final audited report is released, it falls under the 'Earnings Release' category. FY 2025
2026-02-27 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 or changes in share ownership by company directors and executives. According to the provided definitions, this corresponds to 'Director's Dealing'.
2026-01-07 Korean
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 large shareholding status of an individual named 윤지원 and related parties, including share quantities, ownership percentages, and changes in shareholding. It also includes information about contracts related to shares such as collateral agreements. The document references the Capital Market and Financial Investment Business Act and is addressed to regulatory bodies like the Financial Services Commission and Korea Exchange. This type of document corresponds to notifications about major shareholding changes or holdings, which fits the definition of 'Major Shareholding Notification' (Code: MRQ). The document is substantive and detailed, not a brief announcement or a certification, so it is not RNS or RPA. Therefore, the correct classification is MRQ with high confidence.
2025-10-02 Korean
반기보고서 (2025.06)
Interim / Quarterly Report Classification · 100% confidence The document is a '반기보고서' (Semi-Annual Report) for the 27th fiscal period (2025-01-01 to 2025-06-30) submitted to the Financial Supervisory Service and Korea Exchange. It contains comprehensive financial statements, management discussion and analysis, and operational details. This fits the definition of an Interim/Quarterly Report (IR). H1 2025
2025-08-14 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 100% confidence The document is a '주식등의 대량보유상황보고서' (Report on Large Shareholding of Stocks, etc.), which is a standard regulatory filing in South Korea under the Capital Markets Act. It details the shareholding status, changes in shareholding, and collateral agreements (pledges) of major shareholders (specifically Yoon Ji-won and related parties) in Sejin Heavy Industries. This type of filing is specifically categorized as a 'Major Shareholding Notification' (MRQ) in the provided schema.
2025-07-04 Korean

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