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Daiseki Co.,Ltd. — Investor Relations & Filings

Ticker · 9793 ISIN · JP3485600005 T Water supply; sewerage, waste management and remediation activities
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Filings indexed 72 across all filing types
Latest filing 2026-04-21 Regulatory Filings
Country JP Japan
Listing T 9793

About Daiseki Co.,Ltd.

https://www.daiseki.co.jp/english/

Daiseki Co., Ltd. is a company specializing in industrial waste treatment and resource recycling. Its core business activities involve the collection, transportation, and intermediate treatment of industrial wastes, including waste oil, wastewater, and sludge. The company focuses on converting waste materials into valuable resources, such as processing waste oil into recycled fuel and treating wastewater to produce safe, reusable water. Additionally, Daiseki offers services for the investigation and remediation of contaminated soil. The company operates under the philosophy of being an "environment-creating company," aiming to contribute to a sustainable society by making the best use of limited resources.

Recent filings

Filing Released Lang Actions
（訂正・数値データ訂正）「2026年2月期　決算短信〔日本基準〕（連結）」の一部訂正について
Regulatory Filings
2026-04-21 Japanese
変更報告書
Major Shareholding Notification Classification · 100% confidence The document is a 'Large Volume Holding Report' (大量保有報告書) filed in Japan, specifically a 'Change Report' (変更報告書). This document is a regulatory filing required when a shareholder's stake in a company changes significantly (in this case, due to a squeeze-out/takeover process). While it involves share ownership, it is a formal regulatory disclosure document rather than a simple 'Major Shareholding Notification' (MRQ) or 'Director's Dealing' (DIRS). Given the specific regulatory nature and the requirement to report to the Financial Bureau, it falls under the 'Regulatory Filings' (RNS) category as the most appropriate fallback for this type of statutory disclosure.
2025-12-04 Japanese
変更報告書
Major Shareholding Notification Classification · 100% confidence The document is a 'Large Volume Holding Report' (大量保有報告書) filed in Japan, which is a regulatory requirement when an entity acquires a significant percentage of a company's shares. This specific document details a change in shareholding percentage (from 54.01% to 95.60%) due to a tender offer and intent to take the company private. In the provided classification schema, 'Major Shareholding Notification' (MRQ) is the correct category for filings that report changes in significant share ownership levels.
2025-11-18 Japanese
公開買付報告書
M&A Activity Classification · 100% confidence The document is a '公開買付報告書' (Report on Results of Tender Offer) filed with the Kanto Local Finance Bureau by Daiseki Co., Ltd. It details the results of a tender offer for shares of Daiseki Environmental Solution, including the number of shares purchased and the resulting ownership percentage. This type of filing relates to M&A activity and corporate control, which falls under the 'M&A Activity' (TAR) category in the provided schema.
2025-11-18 Japanese
訂正公開買付届出書
M&A Activity Classification · 100% confidence The document is a '公開買付届出書' (Tender Offer Statement) filed with the Kanto Local Finance Bureau by Daiseki Co., Ltd. regarding the acquisition of Daiseki Environmental Solution Co., Ltd. This is a formal regulatory filing related to a takeover bid (M&A activity). According to the provided definitions, documents related to merger proposals or takeover bids are classified as 'TAR'.
2025-10-28 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 (Hankishokokusho) for the period ending August 31, 2025. Since this is a regulatory filing confirming the accuracy of a report rather than the report itself, and it does not fit into specific categories like 10-K or IR, it falls under the general regulatory filing category.
2025-10-10 Japanese

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