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ZEON CORPORATION — Investor Relations & Filings

Ticker · 4205 ISIN · JP3725400000 LEI · 529900UEFURDYZ4F4U10 T Manufacturing
Open in API
Filings indexed 97 across all filing types
Latest filing 2025-06-26 Governance Information
Country JP Japan
Listing T 4205

About ZEON CORPORATION

https://www.zeon.co.jp/en/

Zeon Corporation is a chemical manufacturer specializing in products derived from C4 and C5 fractions. The company operates two primary segments: the Elastomer Business and the Specialty Material Business. The Elastomer Business produces a wide range of synthetic rubbers and latexes used extensively in automotive components like tires, belts, and hoses. The Specialty Material Business develops high-performance materials, including cyclo-olefin polymers (COP) for optical films and lenses, binders and other materials for rechargeable batteries, specialty solvents, and resins for various industrial applications. The company's portfolio also encompasses products for paints, construction materials, and reaction injection molding (RIM).

Recent filings

Filing Released Lang Actions
内部統制報告書－第100期(2024/04/01－2025/03/31)
Governance Information Classification · 100% confidence The document is explicitly titled "内部統制報告書" (Internal Control Report) in the header and within the table structure. It references the legal basis as Article 24-4-4, Paragraph 1 of the Financial Instruments and Exchange Act (金融商品取引法第24条の４の４第１項), which mandates the filing of an Internal Control Report in Japan. The content discusses the framework, scope, criteria (using March 31, 2025, as the cutoff date), and the conclusion that internal controls over financial reporting are effective. This directly corresponds to the definition of an Audit Report / Information (AR), which covers internal or regulatory stress tests and applied accounting principles, although this specific document is an assertion of internal control effectiveness rather than a third-party audit opinion. However, among the provided codes, 'AR' (Audit Report / Information) is the closest fit for formal internal control assessments related to financial reporting standards, distinct from the full Annual Report (10-K) or a simple Earnings Release (ER). Given the highly specific nature of Japanese regulatory filings, and the lack of a dedicated 'Internal Control Report' code, AR serves as the best proxy for formal assurance/control documentation.
2025-06-26 Japanese
有価証券報告書－第100期(2024/04/01－2025/03/31)
Annual Report Classification · 100% confidence The document is a Japanese 'Yuuka Shouken Houkokusho' (Securities Report), which is the Japanese equivalent of a 10-K. It contains comprehensive financial statements, business descriptions, and governance information for the fiscal year ending March 31, 2025. It is a full annual report, not an announcement or a summary. FY 2025
2025-06-26 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document is explicitly titled "自己株券買付状況報告書" (Report on the Status of Treasury Stock Acquisition) and cites the legal basis as "金融商品取引法第24条の６第１項" (Financial Instruments and Exchange Act Article 24-6, Paragraph 1). This type of filing specifically reports on the company's transactions involving its own shares (share repurchase/issuance) during a defined period (May 1, 2025, to May 31, 2025). This directly corresponds to the definition of 'Transaction in Own Shares' (Code: POS). Although it is a regulatory filing, POS is the most specific category available.
2025-06-13 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document title is "自己株券買付状況報告書（法24条の６第１項に基づくもの）" which translates to "Report on the Status of Treasury Stock Acquisition (Based on Article 24-6, Paragraph 1 of the Financial Instruments and Exchange Act)". The content details the acquisition status of treasury stock (own shares) for the reporting period of April 1, 2025, to April 30, 2025. This specific filing relates directly to the company's transactions involving its own shares, which aligns precisely with the definition for 'Transaction in Own Shares' (POS). Although it is a regulatory report, POS is a more specific category than the general 'RNS'.
2025-05-15 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document title is "自己株券買付状況報告書（法24条の６第１項に基づくもの）" which translates to "Report on the Status of Treasury Stock Acquisition (Based on Article 24-6, Paragraph 1)". This document details the acquisition status of the company's own shares (treasury stock) over a specific reporting period (January 1, 2025, to January 31, 2025), including the number of shares acquired and the total value. This directly corresponds to regulatory filings concerning share repurchases or transactions in own shares. Reviewing the definitions, 'Transaction in Own Shares (Code: POS)' is the most appropriate category, as it covers 'Report of the company buying back or selling its own shares (share repurchase/issuance)'. The document is a formal report detailing these transactions, not just an announcement of a report (RPA) or a general regulatory filing (RNS).
2025-02-14 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document is titled "自己株券買付状況報告書（法24条の６第１項に基づくもの）" which translates to "Report on the Status of Treasury Stock Acquisition (Based on Article 24-6, Paragraph 1)". This is a mandatory filing in Japan under the Financial Instruments and Exchange Act (金融商品取引法) detailing the company's share repurchase activities during a specific reporting period (December 1, 2024, to December 31, 2024). This specific type of filing, reporting on the company's own share transactions, directly corresponds to the definition of 'Transaction in Own Shares' (POS). Although it is a report, the specific nature of reporting on share repurchases makes POS a more precise classification than the general 'Report Publication Announcement' (RPA) or 'Regulatory Filing' (RNS). The document contains detailed acquisition status and holdings, confirming it is the report itself, not just an announcement of its publication.
2025-01-14 Japanese

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