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SEWON E&C CO.,LTD. — Investor Relations & Filings

Ticker · 091090 ISIN · KR7091090001 KO Construction
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Filings indexed 758 across all filing types
Latest filing 2026-05-15 Interim / Quarterly Rep…
Country KR South Korea
Listing KO 091090

About SEWON E&C CO.,LTD.

https://www.sewonenc.com/en/

SEWON E&C CO.,LTD. is a manufacturer specializing in industrial process equipment and hydraulic machinery. The company's Plant Business division designs and fabricates essential equipment for the chemical and energy sectors, including reactors, pressure vessels, towers, and heat exchangers, engineered to meet specific client requirements. The Hydraulic Business division focuses on the production of high-precision hydraulic and pneumatic components, such as pumps, valves, and cylinders, serving the broader machinery industry. The company emphasizes its capability to deliver customized, high-quality engineering solutions.

Recent filings

Filing Released Lang Actions
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 95% confidence The document is the full Q1 quarterly report (“분기보고서”) for 세원이앤씨 주식회사 covering the period January 1, 2026 to March 31, 2026. It contains detailed financial statements, business description, operational and financial analysis, audit opinion, and all requisite sections of a statutory quarterly report. It is not merely an announcement or link to a report but the report itself. Therefore, it should be classified as an Interim / Quarterly Report. Q1 2026
2026-05-15 Korean
사업보고서 (2025.12)
Audit Report / Information Classification · 95% confidence The document is titled ‘연결감사보고서’ and consists of an auditor’s report from 삼일회계법인 including an opinion, scope limitations, emphasis of matter, and audited consolidated financial statements. It does not include narrative management discussion or broader annual report disclosures, but is a standalone audit report. Therefore, it best fits the Audit Report / Information category. FY 2025
2026-03-23 Korean
주식등의대량보유상황보고서(약식)
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 the disposal of collateral related to bonds with warrants) by Igis Asset Management regarding the company Sewon E&C. This falls under the category of Major Shareholding Notification (MRQ), as it reports a change in significant share ownership levels.
2026-03-09 Korean
[기재정정]주요사항보고서(소송등의제기)
Legal Proceedings Report Classification · 100% confidence The document is titled '주요사항보고서(소송 등의 제기)' which translates to 'Material Event Report (Filing of Litigation etc.)'. It details corrections to a previously submitted material event report regarding litigation, including information about plaintiffs, withdrawal of claims, and ongoing legal proceedings. The document is addressed to the Financial Services Commission and Korea Exchange, indicating it is a regulatory disclosure. The content focuses on legal proceedings and updates related to a lawsuit, not on financial results, management changes, or shareholder votes. The document length is short (1699 characters) and it is a specific event report about litigation, which fits the category of Legal Proceedings Report rather than a full annual report, earnings release, or other categories. Therefore, the appropriate classification is Legal Proceedings Report (LTR).
2025-11-05 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Major Shareholding Notification 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 share ownership changes, including dates, share quantities, ownership percentages, and transaction types. The document references specific securities ownership by a major shareholder (범한산업(주)) in 세원이앤씨(주). There is no indication of financial performance data, earnings, management discussion, or regulatory certifications. The content is focused on reporting changes in share ownership by insiders or major shareholders. According to the filing definitions, this matches the 'Major Shareholding Notification' category (Code: MRQ), which covers notifications of changes in significant share ownership levels crossing thresholds. The document length is 2679 characters, which is consistent with a detailed ownership notification rather than a full report or announcement of a report. Therefore, the correct classification is MRQ with high confidence.
2025-10-29 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 shareholdings, changes in share ownership, related parties, and the purpose of shareholding, including dates and percentages of ownership. The document references legal provisions related to capital markets and financial investment laws, indicating it is a regulatory filing about significant share ownership changes. There is no indication that this is an announcement of a report publication, an annual or interim financial report, or any other type of report. The content matches the definition of a Major Shareholding Notification, which is a notification of changes in significant share ownership levels crossing thresholds. Therefore, the appropriate classification is Major Shareholding Notification (MRQ). The document length is sufficient and contains substantive data, supporting a high confidence level.
2025-10-27 Korean

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