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DOOSAN TESNA Inc. — Investor Relations & Filings

Ticker · 131970 ISIN · KR7131970006 KO Professional, scientific and technical activities
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Filings indexed 315 across all filing types
Latest filing 2026-05-29 Regulatory Filings
Country KR South Korea
Listing KO 131970

About DOOSAN TESNA Inc.

http://doosan-tesna.com/

DOOSAN TESNA Inc. is a specialized provider of semiconductor testing services, operating as a key part of the back-end manufacturing process. The company offers a comprehensive range of test solutions, including wafer testing, probe testing, final testing, and packaging tests. Its core expertise lies in testing advanced semiconductor products such as System on Chip (SoC) and CMOS Image Sensor (CIS). DOOSAN TESNA also engages in test program development, aiming to deliver a total test solution that covers the entire post-fabrication lifecycle for its clients in the semiconductor industry.

Recent filings

Filing Released Lang Actions
대규모기업집단현황공시[연1회공시및1/4분기용(개별회사)]
Regulatory Filings Classification · 85% confidence The document is a statutory ‘기업집단현황공시’ (corporate group status disclosure) containing group composition, affiliate financials, board/committee details, and related-party transactions. It is a compliance filing under Korean Fair Trade regulations rather than an annual or quarterly financial report, earnings release, or specific capital/transaction announcement. It does not present full audited statements as in a 10-K or interim report, nor is it an AGM presentation, proxy statement, dividend notice, or M&A filing. It is therefore best classified under the catch-all Regulatory Filings category (RNS).
2026-05-29 Korean
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 95% confidence The document is clearly titled '분기보고서' (Quarterly Report) for the 25th fiscal period covering January 1 to March 31, 2026, and contains detailed company overview sections, substantive financial data (revenue, production capacity, capital changes), and management discussion. It is not merely an announcement but the full interim/quarterly report itself. Under our definitions, this corresponds to an Interim / Quarterly Report (IR). Q1 2026
2026-05-15 Korean
[기재정정]신규시설투자등
Regulatory Filings Classification · 65% confidence The document is a regulatory disclosure by Doosan Tesena regarding a “신규시설투자 등” (new facility investment) and a subsequent correction (“정정신고”). It outlines investment amounts, equity ratios, investment periods, board resolution details, and other qualitative notes. It is not an annual or interim financial report, earnings release, management change notice, share issuance, or dividend announcement. Nor does it relate to ESG, legal proceedings, M&A, or insider trading. It does not announce a report publication, but is itself the disclosure. No specific category matches a capex/investment plan announcement, so it falls under the general Regulatory Filings (RNS) fallback.
2026-04-28 Korean
주요사항보고서(유형자산양수결정)
Regulatory Filings Classification · 85% confidence The document is a ‘주요사항보고서’ (major matters report) filed to the Financial Services Commission and Korea Exchange detailing the company’s decision to acquire tangible assets. It contains transaction specifics (asset type, purchase amount, counterparties, schedule, external valuation) rather than financial results, management changes, dividends, share issues, or a full periodic report. It is not simply announcing a report publication, nor is it an AGM material or a call transcript. Therefore, it falls under the generic regulatory filings category.
2026-04-28 Korean
[기재정정]주요사항보고서(유형자산양수결정)
Regulatory Filings Classification · 75% confidence The document is a corrected Korean material fact report (‘주요사항보고서’) disclosing a decision to acquire tangible assets and provides detailed transaction terms. This is not an earnings release, annual/interim report, board change, dividend notice, proxy or AGM material, not a share issue or buyback, and not a financing update per se. It is a standard regulatory filing for corporate event disclosure that does not neatly map to a more specific category, so it falls under the fallback Regulatory Filings (RNS).
2026-04-28 Korean
기업가치제고계획(자율공시)
Regulatory Filings Classification · 72% confidence The document is a voluntary corporate disclosure (‘자율공시’) of a 2026 corporate value enhancement plan by the company. It outlines future strategic objectives, investment focus, and high-dividend status under Korean tax law. It is not a formal annual or interim financial report, a dividend notice, share transaction, management change, proxy statement, or any other specialized category. It is the actual plan content rather than an announcement of a separate report’s publication. Therefore it falls under the general miscellaneous regulatory announcement category (RNS).
2026-04-01 Korean

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