Koatsu Gas Kogyo: FY2021 Q1 results announcement (Japanese GAAP, consolidated)
Koatsu Gas Kogyo: Extraordinary Report
Koatsu Gas Kogyo: Confirmation letter
Koatsu Gas Kogyo: Securities Report - 91st fiscal year (April 1st, 2023 - March 31st, 2024)
Koatsu Gas Kogyo: Confirmation letter
Koatsu Gas Kogyo: Confirmation letter
Koatsu Gas Kogyo: Revised Securities Report - 90th fiscal year (April 1, 2022 to March 31, 2023)
Koatsu Gas Kogyo: Amended Annual Securities Report - 89th Period (04/01/2021-03/31/2022)
Koatsu Gas Kogyo: Summary of financial results for the fiscal year ending March 31, 2020 [Japanese GAAP] (consolidated)
Koatsu Gas Kogyo: Notice regarding dividends from surplus funds
High Pressure Gas Industry: Certificate of Confirmation
High Pressure Gas Industry: Quarterly Report - 91st Quarter 3rd Quarter (2023/10/01 - 2023/12/31)
Koatsu Gas Kogyo: Summary of financial results for the 3rd quarter of the fiscal year ending March 31, 2020 [Japanese GAAP] (consolidated)
Koatsu Gas Kogyo: Quarterly Report - 91st Second Quarter (2023/07/01 - 2023/09/30)
Koatsu Gas Kogyo: Confirmation letter
Koatsu Gas Kogyo: Brief Financial Report for the 2nd Quarter Ending March 31, 2020 [Japanese GAAP] (Consolidated)
Koatsu Gas Kogyo: Confirmation letter
Koatsu Gas Kogyo: Quarterly Report - 91st Quarter (2023/04/01 - 2023/06/30)
Koatsu Gas Kogyo: Summary of Financial Results for the First Quarter of the Fiscal Year Ending March 31, 2016 [Japanese GAAP] (Consolidated)
Koatsu Gas Kogyo: Extraordinary Report
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