Action summary

Company

株式会社大西工業Japanese original

Original: 株式会社　大西工業

Corporate Number: 1490001007639

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

5 September 2022

Issuing authority

Kochi Prefecture

高知県

Industry context

建設業者

Violation

According to documents submitted by 株式会社 大西工業 to the Kochi Prefecture, it was found that the company had appointed a person other than the designated chief engineer as the responsible person for a civil engineering project, in violation of Article 26, Paragraph 3 of the Construction Business Act and Article 27 of the Enforcement Order of the same law. Specifically, the responsible person appointed was a person from the company's office, as stipulated under Article 7, Item 2 of the Construction Business Act, which is not compliant with the requirement for a dedicated chief engineer for such projects. This constitutes a violation of Article 28, Paragraph 1, Item 2 of the Construction Business Act. The prefecture issued an instruction on September 5, 2022, requiring the company to take measures to prevent recurrence, including proper personnel placement, internal management improvements, and staff training, and to report these measures in writing.

Business location and permit details

Business location address

高知県香南市

Representative

山岡 敏夫

Permit / registration number

高知県知事（般）第9680号

Permitted business types

般－（土, Scaffolding, earthwork, and concrete works, Stone works, Steel structure works, Paving works, Dredging works, 水）

Legal articles

建設業法第28条第１項

Cause of action

株式会社大西工業が県に提出した書類の記載によると、建設業法第26条第3項及び建設業法施行令第27条により専任の主任技術者等の配置が義務づけられている土木一式工事に、建設業法第7条第2号に規定される営業所の専任者を主任技術者として配置していたことが判明した。 このことは、建設業法第26条第3項に違反し、同法第28条第1項第2号に該当すると認められる。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=702

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

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

Evidence pack

{
  "record": {
    "id": "de103f5e-704a-4124-9345-a14b7a47cb18",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-da-xi-gong-ye-20220905",
    "company_name_original": "株式会社　大西工業",
    "company_name_registry": "株式会社大西工業",
    "corporate_number": "1490001007639",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "指示",
      "en": "Directive"
    },
    "authority": {
      "ja": "高知県",
      "en": "Kochi 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-da-xi-gong-ye-20220905",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=702",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T13:40:21.017+00:00",
    "evidenceCheckedAt": "2026-07-17T08:55:42.508+00:00",
    "generatedAt": "2026-07-25T04:05:27.605Z"
  },
  "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.