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DI CORPORATION — Investor Relations & Filings

Ticker · 003160 ISIN · KR7003160009 KO Manufacturing
Open in API
Filings indexed 225 across all filing types
Latest filing 2026-06-05 Annual Report
Country KR South Korea
Listing KO 003160

About DI CORPORATION

http://www.di.co.kr/eng/main/main.aspx

DI CORPORATION is a manufacturer specializing in semiconductor test and inspection equipment. The company provides a comprehensive portfolio of solutions centered on burn-in technology, designed to ensure the reliability and performance of semiconductor devices. Its primary product lines include various types of burn-in systems, such as Test Burn-In Testers, Monitoring Burn-In Testers, and Logic Burn-In Testers, as well as systems for Multi-Layer Ceramic Capacitors (MLCCs). Additionally, the company offers LED Burn-In & Test Systems, Multi Flexibility Testers, and customized burn-in boards for both memory and logic applications, serving a global client base in the semiconductor sector.

Recent filings

Filing Released Lang Actions
[기재정정]사업보고서 (2025.12)
Annual Report Classification · 95% confidence The document is titled “사업보고서 (제65기)” covering the full fiscal year January 1, 2025 to December 31, 2025, contains a complete table of contents including company overview, business description, consolidated and standalone financial statements with notes, management discussion, audit opinions, governance, shareholder information, etc. It is the full annual submission of financial and operational results, not merely an announcement or certification. Therefore it matches the definition of an Annual Report (10-K). FY 2025
2026-06-05 Korean
기업설명회(IR)개최(안내공시)
Regulatory Filings Classification · 75% confidence The document is a short public notice (안내공시) announcing the logistics of an upcoming investor relations meeting (IR), with dates, purpose, and a link to IR materials. It contains no substantive financial statements, presentation content, or detailed data itself. It simply publishes information about an IR event, making it a general regulatory announcement rather than an actual report, presentation, or financial statement.
2026-06-05 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 89% confidence The text is a detailed statutory disclosure under Korean capital markets law titled “주식등의 대량보유상황보고서(일반)” (Report of Large Holdings of Shares (General)). It provides breakdowns of major shareholders, share counts, ratios, changes, and contractual details. This aligns with a Major Shareholding Notification (code MRQ), which covers notifications of significant share ownership levels. It is not an AGM material, financial report, or dividend/interest notice, nor merely an announcement of publication; it is the actual shareholding disclosure. Therefore, the correct classification is MRQ.
2026-06-05 Korean
기업지배구조보고서공시
Governance Information Classification · 95% confidence The document is a comprehensive corporate governance report (“기업지배구조보고서 신고서”) covering board structure, shareholder meeting rules, governance policies and key metrics for the 2025 fiscal year. It is not simply an announcement or proxy, but the full governance report detailing internal policies, board composition, and compliance with governance principles. This matches the “Governance Information” category.
2026-06-01 Korean
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 97% confidence The document is titled “분기보고서” covering the period from 2026-01-01 to 2026-03-31 and contains full financial statements (balance sheet, income statement, statement of cash flows), notes, management discussion, and audit opinions. It is a comprehensive quarterly report, not merely an earnings highlight or an announcement. Therefore, it fits the definition of an Interim/Quarterly Report. Q1 2026
2026-05-15 Korean
기타경영사항(자율공시)(종속회사의주요경영사항)
Regulatory Filings Classification · 85% confidence The document is a voluntary regulatory disclosure (‘자율공시’) detailing a major contract signing by a subsidiary (Digital Frontier) with SK hynix, including monetary amounts and relative sales percentages. It does not constitute an earnings release, proxy materials, management change, financing/capital transaction, or any other specific category. It is a general miscellaneous regulatory announcement, so it falls under the fallback category of Regulatory Filings (RNS).
2026-03-30 Korean

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