Half-year report · HY

Period2025-04-01 → 2025-09-30
Filed2025-11-07
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥18.2bn2025-04-01 → 2025-09-30Cons.Net sales
Revenue¥36.8bn2024-04-01 → 2025-03-31Cons.Net sales (5-year summary)
Revenue¥18.2bn2024-04-01 → 2024-09-30Cons.Net sales
Operating income¥121m2025-04-01 → 2025-09-30Cons.Operating income
Operating income−¥607m2024-04-01 → 2024-09-30Cons.Operating income
Ordinary income¥129m2025-04-01 → 2025-09-30Cons.Ordinary income
Ordinary income−¥728m2024-04-01 → 2025-03-31Cons.Ordinary income loss (5-year summary)
Ordinary income−¥579m2024-04-01 → 2024-09-30Cons.Ordinary income
Profit before tax¥49m2025-04-01 → 2025-09-30Cons.Income before income taxes
Profit before tax−¥567m2024-04-01 → 2024-09-30Cons.Income before income taxes
Net income (owners)¥66m2025-04-01 → 2025-09-30Cons.Profit loss attributable to owners of parent
Net income (owners)−¥7.7bn2024-04-01 → 2025-03-31Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)−¥589m2024-04-01 → 2024-09-30Cons.Profit loss attributable to owners of parent
Net income¥66m2025-04-01 → 2025-09-30Cons.Profit loss
Net income−¥589m2024-04-01 → 2024-09-30Cons.Profit loss
Total assets¥32.0bnat 2025-09-30Cons.Assets
Total assets¥32.1bnat 2025-03-31Cons.Assets
Total assets¥38.0bnat 2024-09-30Cons.Total assets (5-year summary)
Total liabilities¥18.2bnat 2025-09-30Cons.Liabilities
Total liabilities¥18.5bnat 2025-03-31Cons.Liabilities
Net assets / equity¥13.8bnat 2025-09-30Cons.Net assets
Net assets / equity¥13.7bnat 2025-03-31Cons.Net assets
Net assets / equity¥20.4bnat 2024-09-30Cons.Net assets (5-year summary)
Cash and deposits¥118mat 2025-09-30Cons.Cash and deposits
Cash and deposits¥158mat 2025-03-31Cons.Cash and deposits
Cash & equivalents¥306mat 2025-09-30Cons.Cash and cash equivalents
Cash & equivalents¥204mat 2025-03-31Cons.Cash and cash equivalents
Cash & equivalents¥482mat 2024-09-30Cons.Cash and cash equivalents
Cash & equivalents¥830mat 2024-03-31vCons.Cash and cash equivalents
Operating cash flow¥636m2025-04-01 → 2025-09-30Cons.Net cash provided by used in operating activities
Operating cash flow−¥4.1bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow−¥1.4bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in operating activities
Investing cash flow−¥322m2025-04-01 → 2025-09-30Cons.Net cash provided by used in investment activities
Investing cash flow−¥846m2024-04-01 → 2025-03-31Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥259m2024-04-01 → 2024-09-30Cons.Net cash provided by used in investment activities
Financing cash flow−¥212m2025-04-01 → 2025-09-30Cons.Net cash provided by used in financing activities
Financing cash flow¥4.3bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow¥1.3bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in financing activities
EPS (basic)¥4.532025-04-01 → 2025-09-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥-528.092024-04-01 → 2025-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥-40.242024-04-01 → 2024-09-30Cons.Basic earnings loss per share (5-year summary)
Equity ratio43.1%at 2025-09-30Cons.Equity to asset ratio (5-year summary)
Equity ratio42.5%at 2025-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio53.7%at 2024-09-30Cons.Equity to asset ratio (5-year summary)

Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.

Segments · 18
SegmentItemPeriodValue
Castingreportable segmentrevenue2025-04-01 → 2025-09-30¥4.0bn
Castingreportable segmentrevenue external2025-04-01 → 2025-09-30¥4.0bn
Castingreportable segmentsegment profit2025-04-01 → 2025-09-30¥19m
Special Steelsreportable segmentrevenue2025-04-01 → 2025-09-30¥14.2bn
Special Steelsreportable segmentrevenue external2025-04-01 → 2025-09-30¥14.2bn
Special Steelsreportable segmentsegment profit2025-04-01 → 2025-09-30¥102m
—segment totalrevenue2025-04-01 → 2025-09-30¥18.2bn
—segment totalrevenue external2025-04-01 → 2025-09-30¥18.2bn
—segment totalsegment profit2025-04-01 → 2025-09-30¥121m
Castingreportable segmentrevenue2024-04-01 → 2024-09-30¥4.1bn
Castingreportable segmentrevenue external2024-04-01 → 2024-09-30¥4.1bn
Castingreportable segmentsegment profit2024-04-01 → 2024-09-30¥26m
Special Steelsreportable segmentrevenue2024-04-01 → 2024-09-30¥14.1bn
Special Steelsreportable segmentrevenue external2024-04-01 → 2024-09-30¥14.1bn
Special Steelsreportable segmentsegment profit2024-04-01 → 2024-09-30−¥634m
—segment totalrevenue2024-04-01 → 2024-09-30¥18.2bn
—segment totalrevenue external2024-04-01 → 2024-09-30¥18.2bn
—segment totalsegment profit2024-04-01 → 2024-09-30−¥607m

Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.

All source rows · 459
ItemContextValueUnit
Major shareholders (text)FilingDateInstantText · Plus
Name major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)㈱神戸製鋼所
Address major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)兵庫県神戸市中央区脇浜海岸通2-2-4
Name major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)JPモルガン証券㈱
Address major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)東京都千代田区丸の内2-7-3
Name major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)野村證券㈱
Address major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)東京都中央区日本橋1-13-1
Name major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)大和証券㈱
Address major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)東京都千代田区丸の内1-9-1
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)大野 哲博
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)東京都港区
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)浅井産業㈱
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)東京都港区芝浦4-2-8
Name major shareholdersInterimInstant_No7MajorShareholdersMemberText · Plus
Address major shareholdersInterimInstant_No7MajorShareholdersMemberText · Plus
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)㈱オカイチ
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)岡山県岡山市北区大元1-7-7
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)加藤 一康
Address major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)岡山県岡山市中区
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)林 良策
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)富山県高岡市
Issued shares voting rights (text)FilingDateInstantText · Plus
Description issued shares voting rightsInterimInstant_SharesWithNoVotingRightsMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsTreasurySharesEtcMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_SharesWithFullVotingRightsTreasurySharesEtcMember
Original text (Japanese)単元株式数100株
Description issued shares voting rightsInterimInstant_SharesWithFullVotingRightsOtherMember
Original text (Japanese)同上
Description issued shares voting rightsInterimInstant_SharesLessThanOneUnitMember-
Treasury shares etc (text)FilingDateInstantText · Plus
Name of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)日本高周波鋼業株式会社
Address of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)東京都千代田区岩本町1-10-5
Information about officers (text)FilingDateInstantText · Plus
Regulations in accordance with which consolidated financial statements have been prepared financial informationInterimDurationText · Plus
Type1 semi annual consolidated financial statements financial informationInterimDurationText · Plus
Note on independent audit financial informationInterimDurationText · Plus
Type1 semi annual consolidated balance sheet (text)InterimDurationText · Plus
Type1 semi annual consolidated statement of income (text)InterimDurationText · Plus
Type1 semi annual consolidated statement of comprehensive income (text)InterimDurationText · Plus
Type1 semi annual consolidated statement of cash flows (text)InterimDurationText · Plus
Notes voluntary changes in accounting policies semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes accounting treatments specific to semi annual financial statements type1 semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes regarding amounts of reduction entry of property plant and equipment (text)InterimInstantText · Plus
Notes regarding obligation to repurchase receivables due to liquidation (text)InterimInstantText · Plus
Major components of selling general and administrative expenses (text)InterimDurationText · Plus
Notes regarding gain on sales of property plant and equipment (text)InterimDurationText · Plus
Notes regarding corporate restructuring expenses (text)InterimDurationText · Plus
Reconciliation of ending balance of cash and cash equivalents with account balances per balance sheet (text)InterimDurationText · Plus
Notes regarding dividend (text)Prior1InterimDurationText · Plus
Notes regarding dividend (text)InterimDurationText · Plus
Notes segment information etc type1 semi annual consolidated financial statements (text)InterimDurationText · Plus

Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.

Data checks · 14 of 14 passed
balance sheet identityconsolidated 2025-03-31pass rounding
balance sheet identityconsolidated 2025-09-30pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2025-03-31pass
statement vs summary · net assetsconsolidated 2025-09-30pass
statement vs summary · net income attributable to parentconsolidated 2024-04-01/2024-09-30pass
statement vs summary · net income attributable to parentconsolidated 2025-04-01/2025-09-30pass
statement vs summary · operating cash flowconsolidated 2024-04-01/2024-09-30pass
statement vs summary · operating cash flowconsolidated 2025-04-01/2025-09-30pass
statement vs summary · revenueconsolidated 2024-04-01/2024-09-30pass
statement vs summary · revenueconsolidated 2025-04-01/2025-09-30pass
statement vs summary · total assetsconsolidated 2025-03-31pass
statement vs summary · total assetsconsolidated 2025-09-30pass