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SEOJIN SYSTEM CO.,LTD — Investor Relations & Filings

Ticker · 178320 ISIN · KR7178320008 LEI · 988400U9NKI8DHZ0J583 KO Manufacturing
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Filings indexed 532 across all filing types
Latest filing 2026-05-22 Major Shareholding Noti…
Country KR South Korea
Listing KO 178320

About SEOJIN SYSTEM CO.,LTD

https://www.seojinsystem.net/main/en/

Seojin System Co., Ltd. is a specialized manufacturer focusing on aluminum alloy die-casting technology. The company produces a diverse range of components and equipment for several key technology sectors. Core business areas include the manufacturing of telecommunication equipment parts, such as remote radio heads (RRH), digital units (DU), and aluminum enclosures. The company has expanded its portfolio to include critical components for energy storage systems (ESS), semiconductor manufacturing equipment, and parts for electric vehicles and batteries. Its manufacturing capabilities encompass the process from raw aluminum material to finished products, serving as a global business partner for technology-driven industries.

Recent filings

Filing Released Lang Actions
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 95% confidence The document is a statutory ‘주식등의 대량보유상황보고서’ filed under Korean capital markets law, detailing the number and percentage of shares held by a major shareholder and related parties, with pre- and post-change positions and transaction details. This clearly matches a Major Shareholding Notification rather than a financial report or earnings release.
2026-05-22 Korean
[기재정정]최대주주변경을수반하는주식담보제공계약체결
Regulatory Filings Classification · 55% confidence The document is a regulatory disclosure of a stock collateral (pledge) agreement by the company’s major shareholder (전동규) and a correction report updating pledge amounts, debt figures, and share ratios. It is neither an earnings release nor a management report, not a dividend notice, M&A activity, or share issue notice. It does not present full financial statements or request votes. It is a routine regulatory announcement under Korean exchange rules that does not fit other specific categories, so it defaults to the General Regulatory Filings category (RNS).
2026-05-21 Korean
단일판매ㆍ공급계약체결
Regulatory Filings Classification · 85% confidence The document is a Korean regulatory disclosure detailing the terms of a single sales and supply contract (단일판매ㆍ공급계약체결) with contract amounts, counterparties, and delivery conditions. It is not a financial report (e.g., earnings, interim, annual) nor an executive or governance update, but a statutory announcement of a material contract. Therefore, it falls under the general regulatory announcement category (RNS).
2026-05-18 Korean
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 95% confidence The document is titled “분기보고서” (Quarterly Report) for the 20th period 1st quarter (Jan 1, 2026 – Mar 31, 2026) filed with the Financial Services Commission and Korea Exchange. It contains detailed financial statements, notes, management discussion, and comprehensive quantitative data, not merely an announcement. Thus, it is an Interim/Quarterly Report. Q1 2026
2026-05-15 Korean
임원ㆍ주요주주특정증권등거래계획보고서
Director's Dealing Classification · 88% confidence The document is a Korean regulatory filing titled “임원ㆍ주요주주 특정증권등 거래계획보고서,” which translates to an executive/major shareholder specific securities trading plan report. It is submitted to the Financial Services Commission and the Korea Exchange, detailing an insider’s planned purchase and sale of company shares. This falls squarely under insider share transactions by company directors/executives, matching the “Director’s Dealing” category.
2026-05-12 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Regulatory Filings
2026-05-08 Korean

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