Action summary

Company

延本建設株式会社Japanese original

Original: 延本建設(株)

Corporate Number: 8110001013560

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

Business Suspension

営業停止

Action date

27 March 2024

Issuing authority

Niigata Prefecture

新潟県

Industry context

建設業者

Violation

Enpō Construction Co., Ltd.'s former executive director was involved in a case concerning the [Hirakida Yanahara District Water Intake Construction First Phase] project ordered by the Rural Development Department of the Shibata Regional Promotion Bureau. The individual conspired with a former advisor of Iwamura Corporation and a former officer of Ono Corporation, received guidance on the project's estimated price, and used fraudulent means to interfere with the fairness of a public bid, leading to his arrest on October 11, 2023, on suspicion of obstructing public contract proceedings. He was subsequently indicted on November 1, 2023, and on February 14, 2024, a sentence of one year in prison with a three-year suspended sentence was finalized. This conduct constitutes a violation of Article 28, Paragraph 1, Item 3 of the Construction Business Act. As a result, the company was ordered to suspend civil engineering operations related to public works for 120 days from April 11, 2024, to August 9, 2024. The suspension applies specifically to civil engineering business involving public construction projects, defined as contracts for comprehensive civil engineering work ordered by government, local authorities, or designated public corporations. The company's main office is located at 1493 Haguros, Tainai City, Niigata Prefecture. The legal basis for the suspension is the Construction Business Act, Article 28, Paragraph 3 (applying the provisions of Paragraph 1, Item 3). The company’s permit number is Niigata Prefecture Governor Permit (General and Specific - 3) No. 42501.

Business location and permit details

Business location address

新潟県新潟県胎内市羽黒1493

Representative

田村 和美

Permit / registration number

新潟県知事許可（般・特-3)42501号

Permitted business types

Civil engineering works, Scaffolding, earthwork, and concrete works, Stone works, Pipe works, Steel structure works, Paving works, し, Landscaping works, Water facilities works, Demolition works

Legal articles

建設業法第２８条第３項(同条第１項第３号該当）

Cause of action

延本建設株式会社の元専務取締役は、新発田地域振興局農村整備部発注の「平木田柳原地区取水工第１次工事」に関し、株式会社岩村組の元顧問、株式会社小野組の元役員と共謀の上、当該工事の予定価格の教示を受け、偽計を用いて公の入札で契約を締結するためのものの公正を害すべき行為をしたことにより、令和５年10月11日に公契約関係競売等妨害の容疑で逮捕された。その後、同年11月１日に起訴され、令和６年２月14日に懲役１年（執行猶予３年）の刑が確定している。 このことが、建設業法第28条第１項第３号に該当する。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1566

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": "0cf20eaf-e7f9-4dbb-aa5c-5a132f8dd745",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-yan-ben-jian-she-20240327",
    "company_name_original": "延本建設(株)",
    "company_name_registry": "延本建設株式会社",
    "corporate_number": "8110001013560",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "営業停止",
      "en": "Business Suspension"
    },
    "authority": {
      "ja": "新潟県",
      "en": "Niigata 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": "Context needed",
    "actionMeaning": "This is a public Japanese regulatory disclosure. The exact legal effect depends on the cited source and regulator.",
    "practicalNote": "Review the original Japanese source and determine relevance to your counterparty-risk workflow.",
    "lawContext": "Construction business law covering licensing, contractor obligations, and public-interest rules for construction work."
  },
  "evidence": {
    "recordUrl": "https://regbase.jp/en/enforcement/kensetsu-gyoho-yan-ben-jian-she-20240327",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1566",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T16:40:16.504+00:00",
    "evidenceCheckedAt": "2026-07-17T08:47:14.157+00:00",
    "generatedAt": "2026-07-24T18:07:28.907Z"
  },
  "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.