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UNION CORPORATION — Investor Relations & Filings

Ticker · 000910 ISIN · KR7000910000 KO Wholesale and retail trade
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Filings indexed 157 across all filing types
Latest filing 2026-06-01 Regulatory Filings
Country KR South Korea
Listing KO 000910

About UNION CORPORATION

https://www.unioncorp.co.kr/eng/

Union Corporation is a manufacturer engaged in two primary business segments: construction materials and advanced materials. The company develops, manufactures, and markets a diverse line of cement products, including white cement and tile cement. Through its affiliate, Union Materials Corp., it also specializes in the production of high-tech components such as ceramics and ferrites. The company is a significant global supplier in the field of magnetron ceramics, which are used in various electronic applications.

Recent filings

Filing Released Lang Actions
기업지배구조보고서공시
Regulatory Filings
2026-06-01 Korean
최대주주등소유주식변동신고서
Major Shareholding Notification Classification · 95% confidence The document is a Korean ‘최대주주등소유주식변동신고서’ (report on changes in major shareholders’ ownership). It details share count changes among the largest shareholder and related parties. This matches the Major Shareholding Notification category (MRQ).
2026-06-01 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 95% confidence The document is a statutory insider report (‘임원ㆍ주요주주 특정증권등 소유상황보고서’) filed with the securities regulator and stock exchange, detailing the holdings and transactions of an executive. This matches the Director’s Dealing category (insider share transactions by directors/executives).
2026-06-01 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 95% confidence The document is a detailed regulatory report titled “주식등의 대량보유상황보고서(일반),” filed with the Financial Services Commission and Korea Exchange, detailing shareholdings, percentage thresholds, related parties, and changes in ownership. This corresponds to a Major Shareholding Notification – a report of substantial share ownership levels and changes by a shareholder crossing reporting thresholds. It is not a company annual or interim report, nor a capital markets announcement of a company report, but a standard substantial shareholding filing.
2026-06-01 Korean
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 98% confidence The document is a Korean ‘분기보고서’ (quarterly report) covering the first quarter of the 75th fiscal period (2026-01-01 to 2026-03-31), filed with the Financial Services Commission and Korea Exchange. It runs over 182,000 characters, includes full financial statements, segment data, business overviews, and actual sales and cost tables. This matches the definition of an Interim/Quarterly Report (“IR”) rather than an announcement or summary. Q1 2026
2026-05-15 Korean
임원ㆍ주요주주특정증권등거래계획보고서
Director's Dealing Classification · 92% confidence The document is a Korean ‘임원ㆍ주요주주 특정증권등 거래계획보고서’, which is a scheduled transaction plan report by an executive (director) detailing planned gifts and disposals of shares. This falls squarely under insider/dealer transaction reporting by company directors. It is not a corporate report like an Annual or Quarterly report nor an announcement of dividends or capital structure changes, but rather a report of a director’s personal share dealings. Therefore the correct classification is Director's Dealing (DIRS).
2026-04-29 Korean

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