Action summary

Company

山尾建設株式会社Japanese original

Original: 山尾建設株式会社

Corporate Number: 1120001144072

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

15 February 2022

Issuing authority

Osaka Prefecture

大阪府

Industry context

建設業者

Violation

Yamao Construction Co., Ltd. was subject to a three-month business suspension from December 1, 2021, to February 28, 2022, by Osaka Prefecture. The violation involved the company entrusting its IC card to an administrative scrivener (the same individual responsible for bidding at Daisatsu Doken Co., Ltd.) who was not the cardholder. This individual used the IC card to prepare cost breakdowns and submit electronic bids, which compromised the fairness of the bidding process. The company was found to have engaged in actions inappropriate for qualified construction business operators, violating Article 28, Paragraph 3 of the Construction Business Act.

Business location and permit details

Business location address

大阪府大阪市港区市岡元町３－８－１１

Representative

米原 政子

Permit / registration number

大阪府知事（般－2）第134595号

Permitted business types

Civil engineering works, Building works, Carpentry works, Plastering works, Scaffolding, earthwork, and concrete works, Stone works, Roof works, Tile, brick, and block works, Steel structure works, Reinforcing bar works, Paving works, し, Sheet-metal works, Glass works, Painting works, Waterproofing works, Interior finishing works, Thermal insulation works, Fittings works, Water facilities works, Demolition works

Legal articles

建設業法第28条第３項

Cause of action

当該建設業者は、大阪市の発注する公共工事の請負契約に係る一般競争入札において、当該建設業者のICカードの名義人ではない行政書士（株式会社大松土建の入札担当者と同一人物）の依頼により当該建設業者のICカードを同人に預け、当該建設業者の入札について、工事費内訳書の作成と併せて電子入札に係るシステム入力による入札書の提出が行われていた。株式会社大松土建の入札担当者と同一人物にICカードを預けるなどの行為は、入札の公正を害し、有資格者としてふさわしくない行為であったとして、このことにより、当該建設業者は、同市より、令和３年12月１日から翌年２月末日までの３か月の入札参加停止措置（大阪市入札参加停止措置要綱別表１４に該当）を受けた。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=567

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": "bedc18c3-4e7f-4bf5-bea8-1605f933a675",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-shan-wei-jian-she-20220215",
    "company_name_original": "山尾建設株式会社",
    "company_name_registry": "山尾建設株式会社",
    "corporate_number": "1120001144072",
    "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-shan-wei-jian-she-20220215",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=567",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T01:50:19.523+00:00",
    "evidenceCheckedAt": "2026-07-17T08:59:59.832+00:00",
    "generatedAt": "2026-07-28T15:25:09.400Z"
  },
  "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.