Half-year report · HY
9170.TEDINET S100Y323
Period2025-10-01 → 2026-03-31
Filed2026-05-13
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 47
| Metric | Value | Period | Scope | Source row |
|---|---|---|---|---|
| Revenue | ¥9.1bn | 2025-10-01 → 2026-03-31 | Cons. | Net sales |
| Revenue | ¥15.3bn | 2024-10-01 → 2025-09-30 | Cons. | Net sales (5-year summary) |
| Revenue | ¥7.9bn | 2024-10-01 → 2025-03-31 | Cons. | Net sales |
| Operating income | ¥858m | 2025-10-01 → 2026-03-31 | Cons. | Operating income |
| Operating income | ¥659m | 2024-10-01 → 2025-03-31 | Cons. | Operating income |
| Ordinary income | ¥804m | 2025-10-01 → 2026-03-31 | Cons. | Ordinary income |
| Ordinary income | ¥1.0bn | 2024-10-01 → 2025-09-30 | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥606m | 2024-10-01 → 2025-03-31 | Cons. | Ordinary income |
| Profit before tax | ¥814m | 2025-10-01 → 2026-03-31 | Cons. | Income before income taxes |
| Profit before tax | ¥614m | 2024-10-01 → 2025-03-31 | Cons. | Income before income taxes |
| Net income (owners) | ¥420m | 2025-10-01 → 2026-03-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥603m | 2024-10-01 → 2025-09-30 | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥329m | 2024-10-01 → 2025-03-31 | Cons. | Profit loss attributable to owners of parent |
| Net income | ¥486m | 2025-10-01 → 2026-03-31 | Cons. | Profit loss |
| Net income | ¥354m | 2024-10-01 → 2025-03-31 | Cons. | Profit loss |
| Total assets | ¥16.9bn | at 2026-03-31 | Cons. | Assets |
| Total assets | ¥16.4bn | at 2025-09-30 | Cons. | Assets |
| Total assets | ¥17.7bn | at 2025-03-31 | Cons. | Total assets (5-year summary) |
| Total liabilities | ¥11.0bn | at 2026-03-31 | Cons. | Liabilities |
| Total liabilities | ¥10.8bn | at 2025-09-30 | Cons. | Liabilities |
| Net assets / equity | ¥6.0bn | at 2026-03-31 | Cons. | Net assets |
| Net assets / equity | ¥5.6bn | at 2025-09-30 | Cons. | Net assets |
| Net assets / equity | ¥5.3bn | at 2025-03-31 | Cons. | Net assets (5-year summary) |
| Cash and deposits | ¥2.8bn | at 2026-03-31 | Cons. | Cash and deposits |
| Cash and deposits | ¥3.0bn | at 2025-09-30 | Cons. | Cash and deposits |
| Cash & equivalents | ¥2.6bn | at 2026-03-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥2.6bn | at 2025-09-30 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥3.2bn | at 2025-03-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥2.3bn | at 2024-09-30v | Cons. | Cash and cash equivalents |
| Operating cash flow | −¥524m | 2025-10-01 → 2026-03-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥1.8bn | 2024-10-01 → 2025-09-30 | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥541m | 2024-10-01 → 2025-03-31 | Cons. | Net cash provided by used in operating activities |
| Investing cash flow | ¥166m | 2025-10-01 → 2026-03-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥745m | 2024-10-01 → 2025-09-30 | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥176m | 2024-10-01 → 2025-03-31 | Cons. | Net cash provided by used in investment activities |
| Financing cash flow | ¥362m | 2025-10-01 → 2026-03-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥767m | 2024-10-01 → 2025-09-30 | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | ¥537m | 2024-10-01 → 2025-03-31 | Cons. | Net cash provided by used in financing activities |
| EPS (basic) | ¥149.11 | 2025-10-01 → 2026-03-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥214.38 | 2024-10-01 → 2025-09-30 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥117.1 | 2024-10-01 → 2025-03-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥142.99 | 2025-10-01 → 2026-03-31 | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥207.59 | 2024-10-01 → 2025-09-30 | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥114.03 | 2024-10-01 → 2025-03-31 | Cons. | Diluted earnings per share (5-year summary) |
| Equity ratio | 33.8% | at 2026-03-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 33.0% | at 2025-09-30 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 29.1% | at 2025-03-31 | Cons. | 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 · 44
| Segment | Item | Period | Value |
|---|---|---|---|
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue | 2025-10-01 → 2026-03-31 | ¥214m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue external | 2025-10-01 → 2026-03-31 | ¥173m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue intersegment | 2025-10-01 → 2026-03-31 | ¥40m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | segment profit | 2025-10-01 → 2026-03-31 | ¥4m |
| Reconciling Itemsreconciling | revenue | 2025-10-01 → 2026-03-31 | −¥93m |
| Reconciling Itemsreconciling | revenue intersegment | 2025-10-01 → 2026-03-31 | −¥93m |
| Reconciling Itemsreconciling | segment profit | 2025-10-01 → 2026-03-31 | −¥511m |
| Construction Businessreportable segment | revenue | 2025-10-01 → 2026-03-31 | ¥3.5bn |
| Construction Businessreportable segment | revenue external | 2025-10-01 → 2026-03-31 | ¥3.5bn |
| Construction Businessreportable segment | revenue intersegment | 2025-10-01 → 2026-03-31 | ¥6m |
| Construction Businessreportable segment | segment profit | 2025-10-01 → 2026-03-31 | ¥329m |
| Environment Businessreportable segment | revenue | 2025-10-01 → 2026-03-31 | ¥4.9bn |
| Environment Businessreportable segment | revenue external | 2025-10-01 → 2026-03-31 | ¥4.9bn |
| Environment Businessreportable segment | revenue intersegment | 2025-10-01 → 2026-03-31 | ¥47m |
| Environment Businessreportable segment | segment profit | 2025-10-01 → 2026-03-31 | ¥993m |
| Environment Engineeringreportable segment | revenue | 2025-10-01 → 2026-03-31 | ¥520m |
| Environment Engineeringreportable segment | revenue external | 2025-10-01 → 2026-03-31 | ¥520m |
| Environment Engineeringreportable segment | segment profit | 2025-10-01 → 2026-03-31 | ¥42m |
| —segment total | revenue | 2025-10-01 → 2026-03-31 | ¥9.0bn |
| —segment total | revenue external | 2025-10-01 → 2026-03-31 | ¥8.9bn |
| —segment total | revenue intersegment | 2025-10-01 → 2026-03-31 | ¥53m |
| —segment total | segment profit | 2025-10-01 → 2026-03-31 | ¥1.4bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue | 2024-10-01 → 2025-03-31 | ¥270m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue external | 2024-10-01 → 2025-03-31 | ¥247m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue intersegment | 2024-10-01 → 2025-03-31 | ¥22m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | segment profit | 2024-10-01 → 2025-03-31 | ¥17m |
| Reconciling Itemsreconciling | revenue | 2024-10-01 → 2025-03-31 | −¥38m |
| Reconciling Itemsreconciling | revenue intersegment | 2024-10-01 → 2025-03-31 | −¥38m |
| Reconciling Itemsreconciling | segment profit | 2024-10-01 → 2025-03-31 | −¥420m |
| Construction Businessreportable segment | revenue | 2024-10-01 → 2025-03-31 | ¥3.4bn |
| Construction Businessreportable segment | revenue external | 2024-10-01 → 2025-03-31 | ¥3.4bn |
| Construction Businessreportable segment | revenue intersegment | 2024-10-01 → 2025-03-31 | ¥10m |
| Construction Businessreportable segment | segment profit | 2024-10-01 → 2025-03-31 | ¥337m |
| Environment Businessreportable segment | revenue | 2024-10-01 → 2025-03-31 | ¥4.1bn |
| Environment Businessreportable segment | revenue external | 2024-10-01 → 2025-03-31 | ¥4.1bn |
| Environment Businessreportable segment | revenue intersegment | 2024-10-01 → 2025-03-31 | ¥6m |
| Environment Businessreportable segment | segment profit | 2024-10-01 → 2025-03-31 | ¥708m |
| Environment Engineeringreportable segment | revenue | 2024-10-01 → 2025-03-31 | ¥203m |
| Environment Engineeringreportable segment | revenue external | 2024-10-01 → 2025-03-31 | ¥203m |
| Environment Engineeringreportable segment | segment profit | 2024-10-01 → 2025-03-31 | ¥17m |
| —segment total | revenue | 2024-10-01 → 2025-03-31 | ¥7.6bn |
| —segment total | revenue external | 2024-10-01 → 2025-03-31 | ¥7.6bn |
| —segment total | revenue intersegment | 2024-10-01 → 2025-03-31 | ¥16m |
| —segment total | segment profit | 2024-10-01 → 2025-03-31 | ¥1.1bn |
Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.
All source rows · 515
| Item | Context | Value | Unit |
|---|---|---|---|
| Net sales | InterimDuration | 9086625000 | JPY |
| Operating income | InterimDuration_jpcrp040300-ssr_E38906-000EnvironmentBusinessReportableSegmentsMember | 993358000 | JPY |
| Operating income | InterimDuration_jpcrp040300-ssr_E38906-000ConstructionBusinessReportableSegmentsMember | 328762000 | JPY |
| Operating income | InterimDuration_jpcrp040300-ssr_E38906-000EnvironmentEngineeringReportableSegmentsMember | 42303000 | JPY |
| Operating income | InterimDuration_ReportableSegmentsMember | 1364424000 | JPY |
| Operating income | InterimDuration_OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember | 4227000 | JPY |
| Operating income | InterimDuration_ReconcilingItemsMember | -510679000 | JPY |
| Operating income | InterimDuration | 857972000 | JPY |
| Document title cover page | FilingDateInstant | Original text (Japanese)半期報告書 | |
| Clause of stipulation cover page | FilingDateInstant | Original text (Japanese)金融商品取引法第24条の５第１項の表の第１号 | |
| Place of filing cover page | FilingDateInstant | Original text (Japanese)関東財務局長 | |
| Filing date cover page | FilingDateInstant | 2026-05-13 | |
| Semi annual accounting period cover page | FilingDateInstant | Original text (Japanese)第52期中（自 2025年10月１日 至 2026年３月31日） | |
| Company name cover page | FilingDateInstant | Original text (Japanese)成友興業株式会社 | |
| Company name in english cover page | FilingDateInstant | ＳＥＩＹＵ ＫＯＧＹＯ Ｃｏ.,Ｌｔｄ. | |
| Title and name of representative cover page | FilingDateInstant | Original text (Japanese)代表取締役社長 細沼 順人 | |
| Address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)東京都あきる野市草花1141番地１（同所は登記上の本店所在地で実際の業務は「最寄りの連絡場所」で行っております。） | |
| Telephone number address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)該当事項はありません。 | |
| Name of contact person address of registered headquarter cover page | FilingDateInstant | Original text (Japanese)該当事項はありません。 | |
| Nearest place of contact cover page | FilingDateInstant | Original text (Japanese)東京都中央区京橋二丁目13番10号 | |
| Telephone number nearest place of contact cover page | FilingDateInstant | Original text (Japanese)03-3538-4111（代表） | |
| Name of contact person nearest place of contact cover page | FilingDateInstant | Original text (Japanese)財務経理部長 川口 涼太 | |
| Place for public inspection cover page (text) | FilingDateInstant | Text · Plus | |
| Edinet code | FilingDateInstant | E38906 | |
| Fund code | FilingDateInstant | － | |
| Security code | FilingDateInstant | 91700 | |
| Filer name in japanese | FilingDateInstant | Original text (Japanese)成友興業株式会社 | |
| Filer name in english | FilingDateInstant | SEIYU KOGYO Co.,Ltd. | |
| Fund name in japanese | FilingDateInstant | － | |
| Fund name in english | FilingDateInstant | － | |
| Cabinet office ordinance | FilingDateInstant | Original text (Japanese)企業内容等の開示に関する内閣府令 | |
| Document type | FilingDateInstant | Original text (Japanese)第四号の三様式 | |
| Accounting standards | FilingDateInstant | Japan GAAP | |
| Whether consolidated financial statements are prepared | FilingDateInstant | true | |
| Industry code when consolidated financial statements are prepared in accordance with industry specific regulations | FilingDateInstant | CNS | |
| Industry code when financial statements are prepared in accordance with industry specific regulations | FilingDateInstant | － | |
| Current fiscal year start date | FilingDateInstant | 2025-10-01 | |
| Current period end date | FilingDateInstant | 2026-03-31 | |
| Type of current period | FilingDateInstant | HY | |
| Current fiscal year end date | FilingDateInstant | 2026-09-30 | |
| Previous fiscal year start date | FilingDateInstant | 2024-10-01 | |
| Comparative period end date | FilingDateInstant | 2025-03-31 | |
| Previous fiscal year end date | FilingDateInstant | 2025-09-30 | |
| Next fiscal year start date | FilingDateInstant | － | |
| End date of quarterly or semi annual period of next fiscal year | FilingDateInstant | － | |
| Amendment flag | FilingDateInstant | false | |
| Identification of document subject to amendment | FilingDateInstant | － | |
| Report amendment flag | FilingDateInstant | false | |
| Xbrl amendment flag | FilingDateInstant | false | |
| Business results of group (text) | FilingDateInstant | Text · 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 identity | pass rounding |
| balance sheet identity | pass rounding |
| dei present | pass |
| period resolution | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net income attributable to parent | pass |
| statement vs summary · net income attributable to parent | pass |
| statement vs summary · operating cash flow | pass |
| statement vs summary · operating cash flow | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |