Action summary

Company

株式会社ダイヨーJapanese original

Original: 株式会社ダイヨー

Corporate Number: 6122001019010

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

22 August 2021

Issuing authority

Osaka Prefecture

大阪府

Industry context

建設業者

Violation

Daiyo Corporation, registered under permit number Osaka Prefecture Governor (Special-28) No. 103141, was suspended for 15 days from August 26 to September 9, 2021, by the Osaka Prefectural Government. The company moved its office from 1-chome, Rakuonji, Yao City, to 2-chome, Ochi Kita, Yao City, in September 2016, but did not update its qualification status for competitive bidding until May 2021. It applied for qualification as a bidder using the old office address in January 2019 and participated in designated competitive bidding requiring the Rakuonji area after September 2016, which constituted a procedural violation. The violation was based on Article 28, Paragraph 3 of the Construction Business Act. The suspension covered all construction-related business activities. The company’s representative is Yamamoto Hirohiro, and its registered address is 2-chome, Ochi Kita, Yao City, Osaka. The violation involved failure to update bidding qualification after relocating the office and participating in designated bidding procedures with outdated regional requirements.

Business location and permit details

Business location address

大阪府八尾市恩智北町二丁目168番地

Representative

山本 大寛

Permit / registration number

大阪府知事（特－28）第103141号

Permitted business types

Civil engineering works, Scaffolding, earthwork, and concrete works, Stone works, Paving works, し, Water facilities works

Legal articles

建設業法第28条第３項

Cause of action

当該建設業者は、建設業法第３条第１項の営業所を平成28年９月に八尾市楽音寺一丁目から同市恩智北町二丁目へ移転していたにもかかわらず、令和３年５月まで八尾市に競争入札参加資格変更の手続きを行わず、平成31年１月に前所を営業所として競争入札参加資格申請を行って、平成28年９月以降楽音寺の地域要件が必要な指名競争入札に参加するなど、同市の入札及び契約手続きについて不正行為等を行った。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=174

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": "a805114e-259b-496c-b0dd-43e6fd9f447f",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-daiyo-20210822",
    "company_name_original": "株式会社ダイヨー",
    "company_name_registry": "株式会社ダイヨー",
    "corporate_number": "6122001019010",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "営業停止",
      "en": "Business Suspension"
    },
    "authority": {
      "ja": "大阪府",
      "en": "Osaka 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-daiyo-20210822",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=174",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T00:30:35.31+00:00",
    "evidenceCheckedAt": "2026-07-17T09:04:47.445+00:00",
    "generatedAt": "2026-07-28T15:22:23.961Z"
  },
  "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.