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WONIK Materials Co.,Ltd. — Investor Relations & Filings

Ticker · 104830 ISIN · KR7104830005 KO Manufacturing
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Filings indexed 261 across all filing types
Latest filing 2026-06-05 Major Shareholding Noti…
Country KR South Korea
Listing KO 104830

About WONIK Materials Co.,Ltd.

https://www.wimco.co.kr/en/

WONIK Materials Co., Ltd. is a specialized manufacturer and supplier of high-purity specialty gases and advanced chemical materials. The company serves the global semiconductor and display manufacturing sectors, providing essential products for advanced fabrication processes. Its portfolio includes a comprehensive range of pure gases (such as NH3 and N2O), precisely formulated gas mixtures, and chemical precursors. These materials are critical for thin-film deposition processes like Atomic Layer Deposition (ALD) and Chemical Vapor Deposition (CVD), which are used to create insulating gaps, High-k and Low-k dielectric layers, and metal layers in integrated circuits and flat-panel displays.

Recent filings

Filing Released Lang Actions
주식등의대량보유상황보고서(약식)
Major Shareholding Notification Classification · 88% confidence The document is a Korean “주식등의 대량보유상황보고서(약식)” filed under capital markets law, detailing the number of shares held, percentage holdings, changes in holdings above the 1% threshold, and reasons for change. This is a regulatory notification of significant shareholding levels rather than an annual or interim report, earnings release, or management/board change. It matches the Major Shareholding Notification definition.
2026-06-05 Korean
지속가능경영보고서등관련사항(자율공시)
Report Publication Announcement Classification · 82% confidence The document is a short voluntary disclosure (under 5,000 characters) summarizing the 2026 ESG Report (title, submission date, structure) and directing readers to the attached full report or the company website. It does not contain the full ESG performance data itself but announces the publication of that report. Under the “menu vs meal” rule, this is a report publication announcement rather than the full ESG report, so it should be classified as RPA.
2026-06-02 Korean
대규모기업집단현황공시[연1회공시및1/4분기용(개별회사)]
Regulatory Filings Classification · 90% confidence The document is a mandatory annual disclosure of the corporate group status (“기업집단현황공시”), containing detailed tables on group structure, financial status, board/executive composition, related-party transactions, and shareholdings. It is not an earnings release, proxy, or ESG performance report per se, nor is it a notice just announcing the availability of a report. It serves as a statutory regulatory filing under Korean law to disclose group and governance data. Therefore it best fits the Regulatory Filings category (RNS).
2026-05-29 Korean
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 94% confidence The document is titled “분기보고서” (Quarterly Report) for the period 2026-01-01 to 2026-03-31 and contains detailed company overview, legal disclosures, subsidiary data, capital changes, share information, amendments to the articles of incorporation, and business operations. It is extensive (over 150,000 characters) and presents substantive financial and operational data, not merely an announcement or link to a report. This matches the definition of an Interim / Quarterly Report. Q1 2026
2026-05-14 Korean
연결재무제표기준영업(잠정)실적(공정공시)
Earnings Release Classification · 95% confidence The document is titled as a preliminary (잠정) earnings performance announcement based on consolidated financial statements for the first quarter of 2026. It includes financial data such as sales, operating profit, and net income for the current quarter, previous quarter, and prior year quarter. The document explicitly states that the figures are provisional and subject to change after external audit review. The length is about 2464 characters, which is relatively short and typical for an earnings release rather than a full interim report. There is no detailed financial statement or comprehensive analysis, only summarized key financial metrics. The document is an initial announcement of quarterly financial results, matching the definition of an Earnings Release (ER). Q1 2026
2026-05-07 Korean
주식등의대량보유상황보고서(약식)
Major Shareholding Notification Classification · 90% confidence The document is a detailed large shareholding report (주식등의 대량보유상황보고서) filed by the National Pension Service describing its significant share ownership percentages, changes in holdings, and related details under the capital markets law. This corresponds to a Major Shareholding Notification, not an announcement of a report or other corporate filing type.
2026-04-01 Korean

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