Business Suspension against 多野産業（株）

多野産業（株） (Construction Business Act)

Construction Business ActGunma PrefectureConfirmed entity match11 March 2026

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/api/v1/enforcements?corporate_number=4070001012471&limit=10

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Action summary

Company: 多野産業（株）Japanese original
Original: 多野産業（株）
Corporate Number: 4070001012471
Entity match: Confirmed entity match95/100Human reviewed
Normalized Japanese name matched to a company profile with Corporate Number
Matched by normalized Japanese company name to an enriched company profile with a Corporate Number.
Governing law: Construction Business Act
建設業法
Action type: Business Suspension
営業停止
Action date: 11 March 2026
Issuing authority: Gunma Prefecture
群馬県

Violation

Machine-translated summary — verify against original

In late June of Reiwa 6 (2024), Yuichiro Kosaka, then CEO of Tano Sangyo Co., Ltd., received secret information regarding the minimum bid price for the Hirai Elementary School Gymnasium Major Renovation Construction Project from Eio Tsukamoto, Vice Mayor of Fujioka City, by phone. Around July 3, Reiwa 6, Yuichiro Kosaka instructed Tano Sangyo Co., Ltd. to submit a bid equal to the minimum bid price and on July 4, the company was awarded the contract for the project. This involved using fraudulent means and disclosing confidential information related to the bid to unfairly influence the contract award. On October 7, Reiwa 7, the Maebashi District Court sentenced him to 1 year and 6 months in prison, with a three-year probation, and the sentence was finalized.

Show original Japanese text

令和６年６月下旬頃、多野産業（株）代表取締役小坂裕一郎（当時）は、藤岡市が執行する「平井小学校体育館大規模改修建築工事」の条件付き一般競争入札に関し、同市副市長塚本英夫から電話により、前記入札に関する秘密事項である同工事の最低制限価格の教示を受けた。令和６年７月３日頃、小坂裕一郎は前記入札において、多野産業（株）に最低制限価格と同額の入札をさせた上、同月４日、同社に同工事を落札させ、もって偽計を用いるとともに入札等に関する秘密を教示することにより、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、令和７年１０月７日に前橋地方裁判所から懲役１年６月、執行猶予３年の判決を受け、その刑が確定した。

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.

Evidence pack

Original Gunma Prefecture announcement (Japanese)Archived source snapshot

Extracted at: 2026-04-25T19:59:32.926+00:00
Evidence checked: 2026-04-25T19:59:32.926+00:00
Archive captured: 2026-06-12T06:30:48.563+00:00

Show audit JSON

{
  "record": {
    "id": "6f446ebf-5063-48fd-8bd2-dde9695a8934",
    "url": "https://regbase.jp/en/enforcement/6f446ebf-5063-48fd-8bd2-dde9695a8934",
    "company_name_original": "多野産業（株）",
    "company_name_registry": "多野産業（株）",
    "corporate_number": "4070001012471",
    "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": 95,
    "method": "normalized_name_with_corporate_number",
    "method_label": "Normalized Japanese name matched to a company profile with Corporate Number",
    "notes": "Matched by normalized Japanese company name to an enriched company profile with a Corporate Number."
  },
  "review": {
    "status": "human_reviewed",
    "label": "Human reviewed"
  },
  "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/6f446ebf-5063-48fd-8bd2-dde9695a8934",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=2090",
    "archiveUrl": "https://kiroku.today/view/34da09ffeaajscyb",
    "archiveCapturedAt": "2026-06-12T06:30:48.563+00:00",
    "extractedAt": "2026-04-25T19:59:32.926+00:00",
    "translatedAt": "2026-05-01T07:29:58.782+00:00",
    "evidenceCheckedAt": "2026-04-25T19:59:32.926+00:00",
    "generatedAt": "2026-06-17T16:11:23.403Z"
  },
  "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: 多野産業（株） Japanese original
Japanese name: 多野産業（株）
Corporate Number: 4070001012471
Registered address: 群馬県藤岡市藤岡1858-1

See company profile →

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