Action summary

Company

上武工業株式会社Japanese original

Original: 上武工業株式会社

Corporate Number: 6070001001679

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

19 July 2023

Issuing authority

Gunma Prefecture

群馬県

Industry context

建設業者

Violation

上武工業株式会社's former representative was involved in a bid rigging scheme related to the 'Kasukawa District Water Pipe Replacement Project (Project No. 2)' executed by Maebashi City on June 26, 2020. The individual received confidential information about the project's estimated price from the vice mayor of Maebashi City and used this information to submit a near-competitive bid, thereby undermining the fairness of the public bidding process. The individual was convicted by Maebashi District Court on March 15, 2023, sentenced to one year in prison (with a three-year suspension), and the sentence was finalized on March 30, 2023. Based on this, Gunma Prefecture issued a one-year suspension of business operations under the Construction Business Act, Article 28, Paragraph 1, Items 2 and 3, effective from August 3, 2023, to August 2, 2024. The suspension applies to water and sewer construction work related to public projects.

Business location and permit details

Business location address

群馬県前橋市上泉町１８６４－２

Representative

山﨑 優子

Permit / registration number

群馬県知事（般-２）第4689号

Permitted business types

Civil engineering works, Scaffolding, earthwork, and concrete works, Pipe works, Paving works, Water facilities works

Legal articles

建設業法第28条第1項第3項

Cause of action

上武工業（株）の代表取締役（当時）は、前橋市が令和２年６月２６日に執行した「粕川地区配水管布設替工事（施道第２号）」に係る指名競争入札に関し、同市副市長（当時）から同入札に関する秘密事項である同工事の予定価格の教示を受け、貴社に同予定価格に近接する金額で入札させて同案件を落札させ、もって偽計を用いて、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行った。これにより、前橋地方裁判所から令和５年３月１５日に懲役１年(執行猶予３年) の判決を受け、同月３０日にその刑が確定した。このことが、建設業法第２８条第１項第２号及び第３号に該当し、同条第３項に基づき営業停止処分とする。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=904

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": "a5a68cd2-87e4-45ae-8a91-6bfdc7ba7d15",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-shang-wu-gong-ye-20230719",
    "company_name_original": "上武工業株式会社",
    "company_name_registry": "上武工業株式会社",
    "corporate_number": "6070001001679",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "営業停止",
      "en": "Business Suspension"
    },
    "authority": {
      "ja": "群馬県",
      "en": "Gunma 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-shang-wu-gong-ye-20230719",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=904",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T15:20:24.923+00:00",
    "evidenceCheckedAt": "2026-07-17T08:51:06.985+00:00",
    "generatedAt": "2026-07-24T15:16:20.162Z"
  },
  "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.