Enforcement record

Business Suspension against 関東建設工業株式会社

関東建設工業株式会社 (Construction Business Act)

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Construction Business ActKantō Regional Development BureauConfirmed entity match27 April 2026

Action type

Business Suspension

Law

Construction Business Act

Authority

Kantō Regional Development Bureau

Action date

27 April 2026

Current page: Enforcement record

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Source verification

Public-source and preservation status

Publishing authority: Kantō Regional Development Bureau
Official source URL: Recorded by RegBase
Entity match: Confirmed against the current entity-resolution policy
Kiroku preservation: Archive not completed

“Confirmed” means that RegBase matched this record to the cited public disclosure or entity under the stated checks. It does not verify the truth of the disclosure or guarantee the entity’s current status, creditworthiness, or any legal conclusion.

Open the official source links in the section below to review the original disclosure.

Action summary

Company: 関東建設工業株式会社Japanese original
Original: 関東建設工業株式会社
Corporate Number: 4070001018972
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 April 2026
Issuing authority: Kantō Regional Development Bureau
関東地方整備局
Industry context: 建設業者

Violation

Machine-translated summary — verify against original

A former employee of Kanto Construction Industry Co., Ltd. was convicted by the Saitama District Court on December 24, 2023, of obstructing public contract auctions under the crime of interfering with public contract auctions (Article 28, Paragraph 1, Item 2 of the Construction Business Act). The conviction pertains to the bid for the 'Kiryuu City New Main Office Building Construction Work' conducted by Kiryuu City, Gunma Prefecture, on October 19, 2022. The court sentenced the individual to one year in prison, with a three-year probation, and the sentence was finalized. This violation has been recognized as grounds for suspension of business activities. The suspension applies to construction activities related to public works in Ibaraki, Tochigi, Gunma, Saitama, Chiba, Tokyo, Kanagawa, Yamanashi, and Nagano Prefectures, specifically for general construction work involving public contracts. The suspension period is from May 12, 2026, to July 10, 2026, totaling 60 days.

Show original Japanese text

関東建設工業株式会社の元社員は、群馬県桐生市が令和４年１０月１９日に入札を執行した「桐生市新本庁舎建設工事」の入札に関し、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として、令和７年１２月２４日にさいたま地方裁判所から公契約関係競売等妨害罪により懲役１年（執行猶予３年）の判決を受け、そ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２号に該当すると認められる。

Business location and permit details

Business location address: 群馬県太田市飯田町１５４７ＯＴＡスクエアビル７Ｆ
Representative: 髙橋明
Permit / registration number: 国土交通大臣許可(特-3）第008420号
Permitted business types: Civil engineering works, Building works, Scaffolding, earthwork, and concrete works, Electrical works, Pipe works, Steel structure works, Paving works, Water facilities works, Demolition works
Legal articles: 建設業法第２８条第３項（同条第１項第２号該当）
Cause of action: 関東建設工業株式会社の元社員は、群馬県桐生市が令和４年１０月１９日に入札を執行した「桐生市新本庁舎建設工事」の入札に関し、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として、令和７年１２月２４日にさいたま地方裁判所から公契約関係競売等妨害罪により懲役１年（執行猶予３年）の判決を受け、そ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=1899

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

Compliance context

Context needed

This is a public Japanese regulatory disclosure. The exact legal effect depends on the cited source and regulator.

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

Review the original Japanese source and determine relevance to your counterparty-risk workflow.

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

Open original sources and verification detailsOfficial URL, direct PDF, and Kiroku archive

Original Kantō Regional Development Bureau source (Japanese)

Extracted at: 2026-10-01T13:39:41.539+00:00
Evidence checked: 2026-10-01T13:39:41.459+00:00
Archive captured: Not archived

Show audit JSON

{
  "record": {
    "id": "1e764e86-3414-4f2f-9a58-bf04d9ee699b",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-guan-dong-jian-she-gong-ye-20260427",
    "company_name_original": "関東建設工業株式会社",
    "company_name_registry": "関東建設工業株式会社",
    "corporate_number": "4070001018972",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "営業停止",
      "en": "Business Suspension"
    },
    "authority": {
      "ja": "関東地方整備局",
      "en": "Kantō Regional Development Bureau"
    }
  },
  "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-guan-dong-jian-she-gong-ye-20260427",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1899",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-10-01T13:39:41.539+00:00",
    "translatedAt": "2026-07-06T07:52:04.705+00:00",
    "evidenceCheckedAt": "2026-10-01T13:39:41.459+00:00",
    "generatedAt": "2026-10-02T04:01:55.523Z"
  },
  "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: 関東建設工業株式会社 Japanese original
Japanese name: 関東建設工業株式会社
Corporate Number: 4070001018972
Registered address: 群馬県太田市飯田町１５４７番地ＯＴＡスクエアビル７Ｆ

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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.