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KEIYO GAS CO., LTD. — Investor Relations & Filings

Ticker · 9539 ISIN · JP3281400006 T Electricity, gas, steam and air conditioning supply
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Filings indexed 60 across all filing types
Latest filing 2026-03-25 Regulatory Filings
Country JP Japan
Listing T 9539

About KEIYO GAS CO., LTD.

https://www.keiyogas.co.jp/

KEIYO GAS CO., LTD. is an energy company primarily engaged in the production, supply, and sale of city gas, serving the northwestern region of Chiba Prefecture. The company has diversified its operations into several other segments, including electricity sales, real estate leasing and management, and the sale of gas-related equipment and living support services. Through its subsidiaries, it also offers plant engineering and comprehensive energy solutions. In line with its long-term strategy, Keiyo Gas is actively investing in renewable energy sources, such as solar power, as part of its commitment to achieving carbon neutrality by 2050 and promoting decarbonization.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 80% confidence The document is a Japanese “confirmation letter” (確認書) submitted under the Financial Instruments and Exchange Act to the Kanto Finance Bureau. It is not the full securities report itself (有価証券報告書), nor is it an investor presentation, earnings release, or any other specialized category. It does not announce the forthcoming report nor provide detailed financial data; rather, it is a compliance confirmation statement. Therefore, it falls into the general “Regulatory Filings” fallback category (RNS).
2026-03-25 Japanese
有価証券報告書－第141期(2025/01/01－2025/12/31)
Annual Report Classification · 100% confidence The document is a Japanese 'Yuka Shoken Hokokusho' (Securities Report), which is the Japanese equivalent of a 10-K annual report. The header explicitly identifies it as a 'Securities Report' (有価証券報告書) filed under the Financial Instruments and Exchange Act, covering the fiscal year from January 1, 2025, to December 31, 2025. It contains extensive XBRL-like metadata and financial reporting structures, confirming it is the full annual report rather than an announcement. FY 2025
2026-03-25 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 related to the accuracy of a Semi-Annual Report (Hankishokokusho). It is a regulatory filing required by Japanese law to accompany financial reports. Since it does not fit into the specific categories of financial reports themselves (like IR or 10-K) and is a formal regulatory submission, it is best classified as a Regulatory Filing (RNS).
2025-08-13 Japanese
半期報告書－第141期(2025/01/01－2025/12/31)
Interim / Quarterly Report Classification · 100% confidence The document is a 'Semi-Annual Report' (半期報告書) filed with the Kanto Local Finance Bureau in Japan. It contains detailed financial statements, including the balance sheet, income statement, and notes for the interim period ending June 30, 2025. It is a comprehensive financial report for a period shorter than a full fiscal year, which fits the definition of an Interim/Quarterly Report (IR). H1 2025
2025-08-13 Japanese
臨時報告書
AGM Information Classification · 100% confidence The document header explicitly states the filing type as "臨時報告書" (Extraordinary/Special Report) and the submission date is March 31, 2025. Section 1 states the reason for filing is due to resolutions passed at the Annual General Meeting (定時株主総会) held on March 27, 2025, citing Japanese Financial Instruments and Exchange Act regulations. The content details the resolutions passed, including dividend approval, articles of incorporation changes, and the election of directors and auditors, along with the voting results. This structure—a report detailing the results of a shareholder meeting—aligns perfectly with the definition of AGM Information (AGM-R), which covers presentations and materials shared during the AGM, or potentially Declaration of Voting Results & Voting Rights Announcements (DVA). Since this document specifically reports the *results* of the voting and the resolutions passed at the AGM, DVA is the most precise fit, as it covers 'Official results from shareholder votes at any general meeting (AGM or EGM)'. However, given the context of Japanese filings, a report detailing the resolutions and results of the AGM is often categorized under AGM-R or sometimes DVA. Since DVA is specifically for 'Declaration of Voting Results & Voting Rights Announcements', and this document contains detailed voting results, DVA is the most accurate classification over the broader AGM-R.
2025-03-31 Japanese
内部統制報告書－第140期(2024/01/01－2024/12/31)
Governance Information Classification · 100% confidence The document header explicitly states the filing type as "【提出書類】 内部統制報告書" (Document Submitted: Internal Control Report) and cites the legal basis as "金融商品取引法第24条の４の４第１項" (Financial Instruments and Exchange Act Article 24-4-4, Paragraph 1). This specific filing in Japan relates to management's assessment of internal controls over financial reporting. This aligns directly with the concept of an Audit Report / Information (AR) category, which covers internal or regulatory stress tests and applied accounting principles, although this is specifically an internal control assessment report rather than a traditional external audit report. Given the provided options, 'AR' (Audit Report / Information) is the closest fit for a formal report detailing internal control assessment results, as opposed to a general earnings release (ER) or annual report (10-K). The document is a full report, not an announcement of a report, so RPA/RNS is excluded.
2025-03-27 Japanese

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