Enforcement record

Directive against 岡本建設株式会社

岡本建設（株） (Construction Business Act)

This page is one enforcement record linked to a confirmed legal entity. Company-level Official Gazette notices, registry data, related-company signals, and other public records are collected on the company profile.

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Construction Business ActHokkaido PrefectureConfirmed entity match29 August 2025

Action type

Directive

Law

Construction Business Act

Authority

Hokkaido Prefecture

Action date

29 August 2025

RegBase evidence report

Japanese public-record enforcement check

Saveable record of the confirmed target entity, regulator disclosure, source status, and review notes for internal compliance files.

Report ID: RB-EN-ENFORCEMENT-KENSETSU-GYOHO-GA-202607241516
Generated at: 25 July 2026 at 00:16
Record URL: https://regbase.jp/en/enforcement/kensetsu-gyoho-gang-ben-jian-she-20250829

1. Review Summary

Target entity	岡本建設株式会社	Corporate Number	6460301000135
Enforcement record	1 record	Other confirmed records for this company	0 records
Action date	29 August 2025	Authority	Hokkaido Prefecture
Law	Construction Business Act	Action type	Directive
Source status	Official source recorded; preserved archive is being prepared

This report summarizes public Japanese government disclosure data held by RegBase. It is not a credit score, sanctions conclusion, legal opinion, or adverse-media determination. Confirm important decisions against the linked official Japanese source.

2. Target Entity

English display name	岡本建設株式会社
Original Japanese name	岡本建設（株）
English-name source	Japanese original
Corporate Number	6460301000135
Company status	Active
Representative	岡本郷
Registered address	北海道北見市無加川町４０４番地７
Industry / capital	Industry: 建設業 / Capital: -

3. Enforcement Record

Target name in disclosure	岡本建設（株）
Authority	Hokkaido Prefecture (北海道)
Law / action type	Construction Business Act / Directive
Action / announcement date	Action: 29 August 2025 / Announcement: 25 April 2026
English summary	The construction company was the prime contractor for a project ordered by Hokkaido but submitted the construction management ledger to the client without realizing that a subcontractor had assigned the work to an individual business owner (one-man contractor), and that the subcontractor's workers were listed in the ledger. This constitutes a violation of Article 28, Paragraph 1, Item 2 of the Construction Business Act.
Original Japanese text	当該建設業者は、北海道発注の工事において元請人であったが、１次下請負人が、その請け負った建設工事を個人事業主（一人親方）に請け負わせたにも関わらず、１次下請負人の作業員として施工体制台帳に記載されていたことに気づかないまま、施工体制台帳等を発注者に提出した。このことは、建設業法第２８条第１項第２号に該当する。
Official source	https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1790
Extraction / evidence timestamps	Extracted: 18 July 2026 at 17:41 / Evidence checked: 18 July 2026 at 17:41 / Archive captured: Not recorded

4. Business Location and Permit Details

Business location address	北海道北見市無加川町404-7
Representative	岡本郷
Permit / registration number	北海道知事許可(般・特-04)オ第00499号
Permitted business types	Civil engineering works, Scaffolding, earthwork, and concrete works, Paving works, Landscaping works, Demolition works
Legal articles	建設業法第28条第１項（同条同項第2号該当）
Cause of action	当該建設業者は、北海道発注の工事において元請人であったが、１次下請負人が、その請け負った建設工事を個人事業主（一人親方）に請け負わせたにも関わらず、１次下請負人の作業員として施工体制台帳に記載されていたことに気づかないまま、施工体制台帳等を発注者に提出した。このことは、建設業法第２８条第１項第２号に該当する。
Other notes	匿名による通報
Overview page	https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1790

5. Other Confirmed Records for This Company

No other confirmed enforcement records linked to this company are shown within the current RegBase coverage.

Reviewer Notes

Reviewer		Team / company
Review purpose
Additional notes

□ Official source URL or archived source was checked.
□ Corporate Number, address, or other identifiers were reviewed to avoid confusing similarly named entities.
□ This document is understood as a public-record evidence file, not a credit decision or legal opinion.

Current page: Enforcement record

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Free report

Save a public-record evidence report for 岡本建設株式会社

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/api/v1/enforcements?corporate_number=6460301000135&limit=10

Open JSON Specs

Action summary

Company: 岡本建設株式会社Japanese original
Original: 岡本建設（株）
Corporate Number: 6460301000135
Entity match: Confirmed entity match100/100Machine checked
source_corporate_number_nta_current_name
国税庁法人番号データとの独立照合で対象法人を確認しました（source_corporate_number_nta_current_name）。
Governing law: Construction Business Act
建設業法
Action type: Directive
指示
Action date: 29 August 2025
Issuing authority: Hokkaido Prefecture
北海道
Industry context: 建設業者

Violation

Machine-translated summary — verify against original

The construction company was the prime contractor for a project ordered by Hokkaido but submitted the construction management ledger to the client without realizing that a subcontractor had assigned the work to an individual business owner (one-man contractor), and that the subcontractor's workers were listed in the ledger. This constitutes a violation of Article 28, Paragraph 1, Item 2 of the Construction Business Act.

Show original Japanese text

当該建設業者は、北海道発注の工事において元請人であったが、１次下請負人が、その請け負った建設工事を個人事業主（一人親方）に請け負わせたにも関わらず、１次下請負人の作業員として施工体制台帳に記載されていたことに気づかないまま、施工体制台帳等を発注者に提出した。このことは、建設業法第２８条第１項第２号に該当する。

Business location and permit details

Business location address: 北海道北見市無加川町404-7
Representative: 岡本郷
Permit / registration number: 北海道知事許可(般・特-04)オ第00499号
Permitted business types: Civil engineering works, Scaffolding, earthwork, and concrete works, Paving works, Landscaping works, Demolition works
Legal articles: 建設業法第28条第１項（同条同項第2号該当）
Cause of action: 当該建設業者は、北海道発注の工事において元請人であったが、１次下請負人が、その請け負った建設工事を個人事業主（一人親方）に請け負わせたにも関わらず、１次下請負人の作業員として施工体制台帳に記載されていたことに気づかないまま、施工体制台帳等を発注者に提出した。このことは、建設業法第２８条第１項第２号に該当する。
Other notes: 匿名による通報
Overview page: https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1790

These fields are extracted from the original Japanese disclosure or linked overview pages when available.

Compliance context

Medium

A regulator issued a directive requiring specified action.

Construction business law covering licensing, contractor obligations, and public-interest rules for construction work.

Verify the required action and whether the company has disclosed remediation or completion.

This context is an operational aid for review workflows, not a credit opinion or legal conclusion.

Evidence pack

Original Hokkaido Prefecture source (Japanese)

Extracted at: 2026-07-18T08:41:46.194+00:00
Evidence checked: 2026-07-18T08:41:46.14+00:00
Archive captured: Not archived

Show audit JSON

{
  "record": {
    "id": "5694a530-486c-4e22-b6da-fe2afaee1883",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-gang-ben-jian-she-20250829",
    "company_name_original": "岡本建設（株）",
    "company_name_registry": "岡本建設株式会社",
    "corporate_number": "6460301000135",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "指示",
      "en": "Directive"
    },
    "authority": {
      "ja": "北海道",
      "en": "Hokkaido Prefecture"
    }
  },
  "entity_match": {
    "status": "confirmed",
    "confidence": 100,
    "method": "source_corporate_number_nta_current_name",
    "method_label": "source_corporate_number_nta_current_name",
    "notes": "国税庁法人番号データとの独立照合で対象法人を確認しました（source_corporate_number_nta_current_name）。"
  },
  "review": {
    "status": "machine_reviewed",
    "label": "Machine checked"
  },
  "compliance_context": {
    "severity": "Medium",
    "actionMeaning": "A regulator issued a directive requiring specified action.",
    "practicalNote": "Verify the required action and whether the company has disclosed remediation or completion.",
    "lawContext": "Construction business law covering licensing, contractor obligations, and public-interest rules for construction work."
  },
  "evidence": {
    "recordUrl": "https://regbase.jp/en/enforcement/kensetsu-gyoho-gang-ben-jian-she-20250829",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1790",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-18T08:41:46.194+00:00",
    "translatedAt": "2026-05-01T07:39:36.73+00:00",
    "evidenceCheckedAt": "2026-07-18T08:41:46.14+00:00",
    "generatedAt": "2026-07-24T15:16:19.741Z"
  },
  "limitations": [
    "RegBase aggregates public Japanese government disclosures and does not provide a credit opinion.",
    "English summaries are provided for reference. The original Japanese source is authoritative.",
    "Possible or unresolved entity matches should be manually verified before use in a decision."
  ]
}

The original Japanese disclosure is the authoritative record. Use possible or unresolved matches only as leads for manual review.

Language

日本語版を見る (Japanese)

Company info

English name: 岡本建設株式会社 Japanese original
Japanese name: 岡本建設株式会社
Corporate Number: 6460301000135
Registered address: 北海道北見市無加川町４０４番地７

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About this recordAggregated and translated from public Japanese government disclosures. The English text is for reference only — authoritative content is the linked Japanese source.