【表紙】

 

【提出書類】

半期報告書

【根拠条文】

金融商品取引法第24条の5第1項の表の第1号

【提出先】

関東財務局長

【提出日】

2025年11月14日

【中間会計期間】

第122期中(自 2025年4月1日 至 2025年9月30日)

【会社名】

愛知製鋼株式会社

【英訳名】

AICHI STEEL CORPORATION

【代表者の役職氏名】

代表取締役社長  後藤 尚英

【本店の所在の場所】

愛知県東海市荒尾町ワノ割1番地

【電話番号】

(052)603―9227

【事務連絡者氏名】

経営企画本部経理部長  村上 賢記

【最寄りの連絡場所】

東京都千代田区丸の内一丁目8番1号
 愛知製鋼株式会社 東京支店

【電話番号】

(03)3211―2251

【事務連絡者氏名】

営業統括本部特殊鋼営業部東日本営業室長  堀崎 雄太

【縦覧に供する場所】

株式会社東京証券取引所

(東京都中央区日本橋兜町2番1号)

株式会社名古屋証券取引所

(名古屋市中区栄三丁目8番20号)

 

 

E01234 54820 愛知製鋼株式会社 AICHI STEEL CORPORATION 企業内容等の開示に関する内閣府令 第四号の三様式 IFRS true cte 2025-04-01 2025-09-30 HY 2026-03-31 2024-04-01 2024-09-30 2025-03-31 1 false false false E01234-000 2025-11-14 E01234-000 2025-11-14 jpcrp_cor:OrdinaryShareMember E01234-000 2025-04-01 2025-09-30 E01234-000 2025-04-01 2025-09-30 jpigp_cor:CapitalSurplusIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:EquityAttributableToOwnersOfParentIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:ExchangeDifferencesOnTranslationOfForeignOperationsIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeIFRSMember E01234-000 2025-04-01 2025-09-30 jpcrp040300-ssr_E01234-000:HaganeCompanyReportableSegmentMember E01234-000 2025-04-01 2025-09-30 jpcrp040300-ssr_E01234-000:KitaeruCompanyReportableSegmentMember E01234-000 2025-04-01 2025-09-30 jpcrp040300-ssr_E01234-000:SmartCompanyReportableSegmentMember E01234-000 2025-04-01 2025-09-30 jpcrp040300-ssr_E01234-000:StainlessCompanyReportableSegmentMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:NonControllingInterestsIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:OtherComponentsOfEquityIFRSMember E01234-000 2025-04-01 2025-09-30 jpcrp_cor:OtherReportableSegmentsMember E01234-000 2025-04-01 2025-09-30 jpcrp_cor:ReconcilingItemsMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:RemeasurementsOfDefinedBenefitPlansIFRSMember E01234-000 2025-04-01 2025-09-30 jpcrp_cor:ReportableSegmentsMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:RetainedEarningsIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:ShareCapitalIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:ShareOfOtherComprehensiveIncomeOfInvestmentsAccountedForUsingEquityMethodIFRSMember E01234-000 2025-04-01 2025-09-30 jpigp_cor:TreasurySharesIFRSMember E01234-000 2025-09-30 E01234-000 2025-09-30 jpigp_cor:CapitalSurplusIFRSMember E01234-000 2025-09-30 jpigp_cor:EquityAttributableToOwnersOfParentIFRSMember E01234-000 2025-09-30 jpigp_cor:ExchangeDifferencesOnTranslationOfForeignOperationsIFRSMember E01234-000 2025-09-30 jpigp_cor:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeIFRSMember E01234-000 2025-09-30 jpcrp_cor:No10MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No1MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No2MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No3MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No4MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No5MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No6MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No7MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No8MajorShareholdersMember E01234-000 2025-09-30 jpcrp_cor:No9MajorShareholdersMember E01234-000 2025-09-30 jpigp_cor:NonControllingInterestsIFRSMember E01234-000 2025-09-30 jpcrp_cor:OrdinarySharesSharesLessThanOneUnitMember E01234-000 2025-09-30 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsOtherMember E01234-000 2025-09-30 jpcrp_cor:OrdinarySharesTreasurySharesSharesWithFullVotingRightsTreasurySharesEtcMember E01234-000 2025-09-30 jpigp_cor:OtherComponentsOfEquityIFRSMember E01234-000 2025-09-30 jpigp_cor:RemeasurementsOfDefinedBenefitPlansIFRSMember E01234-000 2025-09-30 jpigp_cor:RetainedEarningsIFRSMember E01234-000 2025-09-30 jpcrp_cor:Row1Member E01234-000 2025-09-30 jpigp_cor:ShareCapitalIFRSMember E01234-000 2025-09-30 jpigp_cor:ShareOfOtherComprehensiveIncomeOfInvestmentsAccountedForUsingEquityMethodIFRSMember E01234-000 2025-09-30 jpcrp_cor:SharesWithNoVotingRightsMember E01234-000 2025-09-30 jpcrp_cor:SharesWithRestrictedVotingRightsOtherMember E01234-000 2025-09-30 jpcrp_cor:SharesWithRestrictedVotingRightsTreasurySharesEtcMember E01234-000 2025-09-30 jpigp_cor:TreasurySharesIFRSMember E01234-000 2024-04-01 2024-09-30 E01234-000 2024-04-01 2024-09-30 jpigp_cor:CapitalSurplusIFRSMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:EquityAttributableToOwnersOfParentIFRSMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:ExchangeDifferencesOnTranslationOfForeignOperationsIFRSMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeIFRSMember E01234-000 2024-04-01 2024-09-30 jpcrp040300-ssr_E01234-000:HaganeCompanyReportableSegmentMember E01234-000 2024-04-01 2024-09-30 jpcrp040300-ssr_E01234-000:KitaeruCompanyReportableSegmentMember E01234-000 2024-04-01 2024-09-30 jpcrp040300-ssr_E01234-000:SmartCompanyReportableSegmentMember E01234-000 2024-04-01 2024-09-30 jpcrp040300-ssr_E01234-000:StainlessCompanyReportableSegmentMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:NonControllingInterestsIFRSMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:OtherComponentsOfEquityIFRSMember E01234-000 2024-04-01 2024-09-30 jpcrp_cor:OtherReportableSegmentsMember E01234-000 2024-04-01 2024-09-30 jpcrp_cor:ReconcilingItemsMember E01234-000 2024-04-01 2024-09-30 jpcrp_cor:ReportableSegmentsMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:RetainedEarningsIFRSMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:ShareCapitalIFRSMember E01234-000 2024-04-01 2024-09-30 jpigp_cor:TreasurySharesIFRSMember E01234-000 2024-09-30 E01234-000 2024-09-30 jpigp_cor:CapitalSurplusIFRSMember E01234-000 2024-09-30 jpigp_cor:EquityAttributableToOwnersOfParentIFRSMember E01234-000 2024-09-30 jpigp_cor:ExchangeDifferencesOnTranslationOfForeignOperationsIFRSMember E01234-000 2024-09-30 jpigp_cor:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeIFRSMember E01234-000 2024-09-30 jpigp_cor:NonControllingInterestsIFRSMember E01234-000 2024-09-30 jpigp_cor:OtherComponentsOfEquityIFRSMember E01234-000 2024-09-30 jpigp_cor:RetainedEarningsIFRSMember E01234-000 2024-09-30 jpigp_cor:ShareCapitalIFRSMember E01234-000 2024-09-30 jpigp_cor:TreasurySharesIFRSMember E01234-000 2024-04-01 2025-03-31 E01234-000 2025-03-31 E01234-000 2025-03-31 jpigp_cor:CapitalSurplusIFRSMember E01234-000 2025-03-31 jpigp_cor:EquityAttributableToOwnersOfParentIFRSMember E01234-000 2025-03-31 jpigp_cor:ExchangeDifferencesOnTranslationOfForeignOperationsIFRSMember E01234-000 2025-03-31 jpigp_cor:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeIFRSMember E01234-000 2025-03-31 jpigp_cor:NonControllingInterestsIFRSMember E01234-000 2025-03-31 jpigp_cor:OtherComponentsOfEquityIFRSMember E01234-000 2025-03-31 jpigp_cor:RemeasurementsOfDefinedBenefitPlansIFRSMember E01234-000 2025-03-31 jpigp_cor:RetainedEarningsIFRSMember E01234-000 2025-03-31 jpigp_cor:ShareCapitalIFRSMember E01234-000 2025-03-31 jpigp_cor:ShareOfOtherComprehensiveIncomeOfInvestmentsAccountedForUsingEquityMethodIFRSMember E01234-000 2025-03-31 jpigp_cor:TreasurySharesIFRSMember E01234-000 2024-03-31 E01234-000 2024-03-31 jpigp_cor:CapitalSurplusIFRSMember E01234-000 2024-03-31 jpigp_cor:EquityAttributableToOwnersOfParentIFRSMember E01234-000 2024-03-31 jpigp_cor:ExchangeDifferencesOnTranslationOfForeignOperationsIFRSMember E01234-000 2024-03-31 jpigp_cor:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeIFRSMember E01234-000 2024-03-31 jpigp_cor:NonControllingInterestsIFRSMember E01234-000 2024-03-31 jpigp_cor:OtherComponentsOfEquityIFRSMember E01234-000 2024-03-31 jpigp_cor:RetainedEarningsIFRSMember E01234-000 2024-03-31 jpigp_cor:ShareCapitalIFRSMember E01234-000 2024-03-31 jpigp_cor:TreasurySharesIFRSMember iso4217:JPY iso4217:JPY xbrli:shares xbrli:pure xbrli:shares