Half-year report · HY

Period2025-04-01 → 2025-09-30
Filed2025-11-14
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥12.6bn2025-04-01 → 2025-09-30Cons.Net sales
Revenue¥24.9bn2024-04-01 → 2025-03-31Cons.Net sales (5-year summary)
Revenue¥11.7bn2024-04-01 → 2024-09-30Cons.Net sales
Operating income¥834m2025-04-01 → 2025-09-30Cons.Operating income
Operating income¥204m2024-04-01 → 2024-09-30Cons.Operating income
Ordinary income¥1.6bn2025-04-01 → 2025-09-30Cons.Ordinary income
Ordinary income¥1.7bn2024-04-01 → 2025-03-31Cons.Ordinary income loss (5-year summary)
Ordinary income−¥217m2024-04-01 → 2024-09-30Cons.Ordinary income
Profit before tax¥1.6bn2025-04-01 → 2025-09-30Cons.Income before income taxes
Profit before tax−¥225m2024-04-01 → 2024-09-30Cons.Income before income taxes
Net income (owners)¥972m2025-04-01 → 2025-09-30Cons.Profit loss attributable to owners of parent
Net income (owners)¥101m2024-04-01 → 2025-03-31Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)−¥404m2024-04-01 → 2024-09-30Cons.Profit loss attributable to owners of parent
Net income¥977m2025-04-01 → 2025-09-30Cons.Profit loss
Net income−¥400m2024-04-01 → 2024-09-30Cons.Profit loss
Total assets¥32.9bnat 2025-09-30Cons.Assets
Total assets¥32.5bnat 2025-03-31Cons.Assets
Total assets¥32.5bnat 2024-09-30Cons.Total assets (5-year summary)
Total liabilities¥8.3bnat 2025-09-30Cons.Liabilities
Total liabilities¥8.0bnat 2025-03-31Cons.Liabilities
Net assets / equity¥24.7bnat 2025-09-30Cons.Net assets
Net assets / equity¥24.5bnat 2025-03-31Cons.Net assets
Net assets / equity¥24.4bnat 2024-09-30Cons.Net assets (5-year summary)
Cash and deposits¥3.5bnat 2025-09-30Cons.Cash and deposits
Cash and deposits¥3.3bnat 2025-03-31Cons.Cash and deposits
Cash & equivalents¥3.5bnat 2025-09-30Cons.Cash and cash equivalents
Cash & equivalents¥3.3bnat 2025-03-31Cons.Cash and cash equivalents
Cash & equivalents¥3.5bnat 2024-09-30Cons.Cash and cash equivalents
Cash & equivalents¥3.5bnat 2024-03-31vCons.Cash and cash equivalents
Operating cash flow¥1.2bn2025-04-01 → 2025-09-30Cons.Net cash provided by used in operating activities
Operating cash flow¥2.5bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥1.5bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in operating activities
Investing cash flow−¥488m2025-04-01 → 2025-09-30Cons.Net cash provided by used in investment activities
Investing cash flow−¥2.0bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥1.2bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in investment activities
Financing cash flow−¥468m2025-04-01 → 2025-09-30Cons.Net cash provided by used in financing activities
Financing cash flow−¥672m2024-04-01 → 2025-03-31Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥395m2024-04-01 → 2024-09-30Cons.Net cash provided by used in financing activities
EPS (basic)¥1,004.072025-04-01 → 2025-09-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥104.492024-04-01 → 2025-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥-417.452024-04-01 → 2024-09-30Cons.Basic earnings loss per share (5-year summary)
Equity ratio74.7%at 2025-09-30Cons.Equity to asset ratio (5-year summary)
Equity ratio75.1%at 2025-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio74.8%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 · 38
SegmentItemPeriodValue
Reconciling Itemsreconcilingrevenue2025-04-01 → 2025-09-30−¥51m
Reconciling Itemsreconcilingrevenue intersegment2025-04-01 → 2025-09-30−¥51m
Reconciling Itemsreconcilingsegment profit2025-04-01 → 2025-09-30−¥86m
Electric Wire Related Businessreportable segmentrevenue2025-04-01 → 2025-09-30¥977m
Electric Wire Related Businessreportable segmentrevenue external2025-04-01 → 2025-09-30¥975m
Electric Wire Related Businessreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥2m
Electric Wire Related Businessreportable segmentsegment profit2025-04-01 → 2025-09-30¥7m
Lumber Related Businessreportable segmentrevenue2025-04-01 → 2025-09-30¥11.3bn
Lumber Related Businessreportable segmentrevenue external2025-04-01 → 2025-09-30¥11.3bn
Lumber Related Businessreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥232,000
Lumber Related Businessreportable segmentsegment profit2025-04-01 → 2025-09-30¥894m
Piping Work Related Businessreportable segmentrevenue2025-04-01 → 2025-09-30¥314m
Piping Work Related Businessreportable segmentrevenue external2025-04-01 → 2025-09-30¥265m
Piping Work Related Businessreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥49m
Piping Work Related Businessreportable segmentsegment profit2025-04-01 → 2025-09-30¥18m
Total Of Reportable Segments And Otherssegment totalrevenue2025-04-01 → 2025-09-30¥12.6bn
Total Of Reportable Segments And Otherssegment totalrevenue external2025-04-01 → 2025-09-30¥12.6bn
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2025-04-01 → 2025-09-30¥51m
Total Of Reportable Segments And Otherssegment totalsegment profit2025-04-01 → 2025-09-30¥919m
Reconciling Itemsreconcilingrevenue2024-04-01 → 2024-09-30−¥45m
Reconciling Itemsreconcilingrevenue intersegment2024-04-01 → 2024-09-30−¥45m
Reconciling Itemsreconcilingsegment profit2024-04-01 → 2024-09-30¥14m
Electric Wire Related Businessreportable segmentrevenue2024-04-01 → 2024-09-30¥892m
Electric Wire Related Businessreportable segmentrevenue external2024-04-01 → 2024-09-30¥889m
Electric Wire Related Businessreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥3m
Electric Wire Related Businessreportable segmentsegment profit2024-04-01 → 2024-09-30¥12m
Lumber Related Businessreportable segmentrevenue2024-04-01 → 2024-09-30¥10.6bn
Lumber Related Businessreportable segmentrevenue external2024-04-01 → 2024-09-30¥10.6bn
Lumber Related Businessreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥261,000
Lumber Related Businessreportable segmentsegment profit2024-04-01 → 2024-09-30¥162m
Piping Work Related Businessreportable segmentrevenue2024-04-01 → 2024-09-30¥287m
Piping Work Related Businessreportable segmentrevenue external2024-04-01 → 2024-09-30¥246m
Piping Work Related Businessreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥41m
Piping Work Related Businessreportable segmentsegment profit2024-04-01 → 2024-09-30¥15m
Total Of Reportable Segments And Otherssegment totalrevenue2024-04-01 → 2024-09-30¥11.8bn
Total Of Reportable Segments And Otherssegment totalrevenue external2024-04-01 → 2024-09-30¥11.7bn
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2024-04-01 → 2024-09-30¥45m
Total Of Reportable Segments And Otherssegment totalsegment profit2024-04-01 → 2024-09-30¥190m

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

All source rows · 556
ItemContextValueUnit
Other information on share acquisition rights (text)FilingDateInstantText · Plus
Exercises etc of moving strike convertible bonds etc (text)FilingDateInstantText · Plus
Changes in number of issued shares stated capital etc (text)FilingDateInstantText · Plus
Major shareholders (text)FilingDateInstantText · Plus
Name major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)南海興産株式会社
Address major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)香川県高松市常磐町2丁目13番地4
Name major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)公益財団法人南海育英会
Address major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)香川県高松市常磐町2丁目13番地4
Name major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)株式会社百十四銀行(常任代理人 株式会社日本カストディ銀行)
Address major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)香川県高松市亀井町5番地の1(東京都中央区晴海1丁目8番12号)
Name major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)株式会社SBI証券
Address major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)東京都港区六本木1丁目6番1号
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)小林 茂
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)新潟県新発田市
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)四国興業株式会社
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)香川県高松市塩屋町8-1
Name major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)株式会社愛媛銀行
Address major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)愛媛県松山市勝山町2丁目1
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)丸山 徹
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)香川県高松市
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)INTERACTIVE BROKERS LLC(常任代理人 インタラクティブ・ブローカーズ証券株式会社)
Address major shareholdersInterimInstant_No9MajorShareholdersMemberText · Plus
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)株式会社商工組合中央金庫
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)東京都中央区八重洲2丁目10-17
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-
Description issued shares voting rightsInterimInstant_SharesWithFullVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_SharesLessThanOneUnitMember
Original text (Japanese)一単元(100株)未満の株式
Treasury shares etc (text)FilingDateInstantText · Plus
Name of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)南海プライウッド㈱
Address of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)香川県高松市松福町1丁目15-10
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 regarding trade notes receivable discounted or transferred by endorsement (text)InterimInstantText · 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
Footnotes regarding segment information table (text)Prior1InterimDurationText · Plus
Information about impairment loss of non current assets or goodwill etc for each reportable segment (text)Prior1InterimDurationText · Plus
Footnotes regarding segment information table (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