Business Suspension against 株式会社タマイ

株式会社タマイ (Construction Business Act)

Construction Business ActOsaka PrefectureConfirmed entity match13 June 2024

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/api/v1/enforcements?corporate_number=3120001027688&limit=10

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Action summary

Company: 株式会社タマイJapanese original
Original: 株式会社タマイ
Corporate Number: 3120001027688
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: 13 June 2024
Issuing authority: Osaka Prefecture
大阪府

Violation

Machine-translated summary — verify against original

The construction company engaged in misconduct related to public construction bidding and contract procedures. Specifically, during a general competitive bid for construction work ordered by Osaka Prefecture in Osaka City, the company applied for bidding from the same IP address along with Okamoto Kensetsu Kogyo Co., Ltd. and Yutaka Co., Ltd. Subsequently, the company and Yutaka Co., Ltd. bid from the same IP address, and the bid documents for four companies, including Okamoto Kensetsu Kogyo Co., Ltd. and Renuve Daito Co., Ltd., contained identical direct construction costs listed in the cost breakdown sheets. This violated Article 3, Paragraph 3 of the Osaka Prefecture Electronic Construction Bidding Guidelines, which prohibits bidders from disclosing bid prices or details of the cost breakdown before the winner is decided. These actions constituted misconduct in the bidding and contracting process for public works.

Show original Japanese text

当該建設業者は、大阪市内の大阪府発注の建設工事の請負契約に係る一般競争入札において、同一のIPアドレスより当該建設業者、岡本建設工業株式会社及び株式会社ユタカが入札参加申請を行った上、同一のIPアドレスより当該建設業者及び株式会社ユタカが入札を行い、岡本建設工業株式会社及びリノヴェ大都株式会社を含めこれら４社の入札書に添付された工事費内訳書記載の直接工事費を全く同一とし、大阪府建設工事電子入札心得第３条第３項の「入札参加者は、落札者の決定前に、他の入札参加者に対して入札価格又は工事費内訳書の内容を開示してはならない。」との規定に違反するなど、公共工事の入札及び契約手続について不正行為等を行った。

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 Osaka Prefecture announcement (Japanese)Archived source snapshot

Extracted at: 2026-04-25T20:36:40.988+00:00
Evidence checked: 2026-04-25T20:36:40.988+00:00
Archive captured: 2026-06-07T12:30:58.03+00:00

Show audit JSON

{
  "record": {
    "id": "6e439b9e-fabe-41b3-9ce9-2854b910ebd4",
    "url": "https://regbase.jp/en/enforcement/6e439b9e-fabe-41b3-9ce9-2854b910ebd4",
    "company_name_original": "株式会社タマイ",
    "company_name_registry": "株式会社タマイ",
    "corporate_number": "3120001027688",
    "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": 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/6e439b9e-fabe-41b3-9ce9-2854b910ebd4",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1091",
    "archiveUrl": "https://kiroku.today/view/1cd934965f3rg9kg",
    "archiveCapturedAt": "2026-06-07T12:30:58.03+00:00",
    "extractedAt": "2026-04-25T20:36:40.988+00:00",
    "translatedAt": "2026-05-01T08:05:51.943+00:00",
    "evidenceCheckedAt": "2026-04-25T20:36:40.988+00:00",
    "generatedAt": "2026-06-25T17:28:26.155Z"
  },
  "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: 株式会社タマイ Japanese original
Japanese name: 株式会社タマイ
Corporate Number: 3120001027688
Registered address: 大阪府大阪市西区新町二丁目９番３号双竜ビル４階

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.