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YUKI GOSEI KOGYO CO.,LTD. — Investor Relations & Filings

Ticker · 4531 ISIN · JP3946400003 T Manufacturing
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Filings indexed 68 across all filing types
Latest filing 2026-05-19 Investor Presentation
Country JP Japan
Listing T 4531

About YUKI GOSEI KOGYO CO.,LTD.

https://www.yuki-gosei.co.jp/en/

YUKI GOSEI KOGYO CO.,LTD. is a manufacturer specializing in the research, development, and production of fine chemical products through organic synthesis. Leveraging its proprietary technologies developed since its foundation in 1947, the company produces a diverse portfolio that includes amino acids, food additives, and materials for the pharmaceutical sector, supporting drug discovery and generic drug development. The company also manufactures industrial functional materials, including ingredients for semiconductors and silicon wafers. In addition to its product lines, YUKI GOSEI KOGYO offers contract manufacturing services for both medical and chemical applications.

Recent filings

Filing Released Lang Actions
新中期経営計画の策定に関するお知らせ
Investor Presentation Classification · 80% confidence The document is a press release titled “新中期経営計画の策定に関するお知らせ” (“Notice of Formulation of New Medium-term Management Plan”), issued by the company to announce its 3-year strategic plan, including detailed business policies, action items and quantitative financial/ESG targets for fiscal 2027–2029. It is not a financial statement or earnings release, nor a simple regulatory notice. It provides an investor-focused presentation of strategy, outlook and numeric goals, matching the definition of an Investor Presentation.
2026-05-19 Japanese
確認書
Report Publication Announcement Classification · 100% confidence The document is a 'Confirmation Letter' (Kakunin-sho) filed under the Financial Instruments and Exchange Act, specifically confirming the accuracy of the contents of a Semi-Annual Report (Interim Report). Since this is a standalone regulatory filing confirming the validity of a report rather than the report itself, and it does not fit into the other specific categories like 10-K or IR, it is classified as a Regulatory Filing (RNS).
2025-11-13 Japanese
半期報告書－第106期(2025/04/01－2026/03/31)
Interim / Quarterly Report Classification · 100% confidence The document is a '半期報告書' (Semi-Annual Report) filed by Yuki Gosei Kogyo Co., Ltd. with the Kanto Local Finance Bureau. It contains detailed financial statements (balance sheets, income statements, etc.) for the interim period ending September 30, 2025. As it is a comprehensive financial report for a period shorter than a full fiscal year containing actual financial data, it is classified as an Interim/Quarterly Report. H1 2026
2025-11-13 Japanese
臨時報告書
AGM Information Classification · 100% confidence The document is titled '臨時報告書' (Extraordinary Report) and is submitted to the Kanto Local Finance Bureau ('関東財務局長'). The '提出理由' (Reason for Submission) explicitly states that the report is filed because resolutions were passed at the '定時株主総会' (Annual General Meeting) held on June 20, 2025, in accordance with Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act. The content details the resolutions passed, including dividend approval, director elections, and the introduction of a restricted stock compensation plan, along with the voting results (votes for, against, abstentions). This structure perfectly matches the requirements for reporting the results of a shareholder meeting, which falls under the 'Declaration of Voting Results & Voting Rights Announcements' category (DVA), as it reports the outcome of the AGM resolutions.
2025-06-24 Japanese
内部統制報告書－第105期(2024/04/01－2025/03/31)
Governance Information Classification · 100% confidence The document explicitly states in the header section ("【提出書類】") that it is an "内部統制報告書" (Internal Control Report). It references the legal basis under the Financial Instruments and Exchange Act ("金融商品取引法第24条の４の４第１項") and details the scope, criteria, and procedures for evaluating internal controls over financial reporting, concluding with an assessment of effectiveness. This directly corresponds to the description of an Audit Report / Information (AR), which covers internal or regulatory stress tests and applied accounting principles, although this specific document is an Internal Control Report, which falls closest to the AR category among the provided options, as it deals with the assurance/audit-related aspects of financial reporting integrity, distinct from a full Annual Report (10-K) or a simple Earnings Release (ER). Given the options, AR is the most appropriate fit for a formal report on internal controls over financial reporting.
2025-06-19 Japanese
確認書
Audit Report / Information Classification · 95% confidence The document is extremely short (611 characters) and contains a table structure typical of a cover page for a Japanese regulatory filing. Key Japanese terms include '【提出書類】確認書' (Filing Document: Confirmation Document), '【根拠条文】金融商品取引法' (Basis Article: Financial Instruments and Exchange Act), and '有価証券報告書' (Annual Securities Report/10-K). Section 1 explicitly states that the Representative Director confirms the contents of the '第105期...有価証券報告書' (105th period... Annual Securities Report) are appropriate. Since this document is a 'Confirmation Document' (確認書) related to the Annual Securities Report (10-K) and not the full 10-K itself, and given its brevity, it functions as an official declaration or certification accompanying a primary filing. In the provided schema, the closest fit for a document certifying or confirming the accuracy of a major report, especially when it's a short, formal declaration, is often categorized under general regulatory filings or specific certification types. However, since it directly relates to the accuracy confirmation of the Annual Securities Report (10-K), and is not the report itself, it is best classified as a general Regulatory Filing (RNS) or potentially an Audit Report (AR) if it were an auditor's opinion, but here it is management's confirmation. Given the options, and recognizing this as a formal certification accompanying the main annual filing, RNS (Regulatory Filings) is the most appropriate fallback for this specific certification document type that isn't the 10-K itself. FY 2025
2025-06-19 Japanese

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