Action summary

Company

水道機工株式会社Japanese original

Original: 水道機工株式会社

Corporate Number: 5010901005975

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

Directive

指示

Action date

10 February 2023

Issuing authority

Kantō Regional Development Bureau

関東地方整備局

Industry context

建設業者

Violation

Suidou Kikou Corporation violated Article 15, Item 2 of the Construction Business Act by assigning personnel who did not meet qualification requirements as the sole technical officer at its office. This violation is recognized as falling under Article 28, Paragraph 1 of the Act. The Kanto Regional Development Bureau issued an instruction on February 10, 2023, requiring the company to take measures to prevent recurrence, including promptly informing staff of the violation and related sanctions, conducting training to ensure compliance with the law, and reviewing and strengthening internal management systems. The company is also required to submit a written report on the measures taken. The company's main office is located at 5-48-16 Sakuraoka, Setagaya-ku, Tokyo, and it holds construction permits for various types including earthwork, construction, steel, machinery, water, cleaning, and demolition, with permit number 004311 issued by the Minister of Land, Infrastructure, Transport and Tourism.

Business location and permit details

Business location address

東京都世田谷区桜丘5-48-16

Representative

古川 徹

Permit / registration number

国土交通大臣（特－１）第004311号

Permitted business types

Civil engineering works, Building works, Scaffolding, earthwork, and concrete works, Steel structure works, Dredging works, Machinery and equipment installation works, Water facilities works, Cleaning facilities works, Demolition works

Legal articles

建設業法第28条第1項本文

Cause of action

水道機工株式会社は、建設業法第１５条第２号の規定に違反して、資格要件を満たさない者を営業所の専任技術者として配置していた。 このことが、建設業法第２８条第１項本文に該当すると認められる。

Overview page

https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1107

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": "127aa5d4-40de-4142-bcda-3c1eaa2eb129",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-shui-dao-ji-gong-20230210",
    "company_name_original": "水道機工株式会社",
    "company_name_registry": "水道機工株式会社",
    "corporate_number": "5010901005975",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "指示",
      "en": "Directive"
    },
    "authority": {
      "ja": "関東地方整備局",
      "en": "Kantō Regional Development Bureau"
    }
  },
  "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": "Medium",
    "actionMeaning": "A regulator issued a directive requiring specified action.",
    "practicalNote": "Verify the required action and whether the company has disclosed remediation or completion.",
    "lawContext": "Construction business law covering licensing, contractor obligations, and public-interest rules for construction work."
  },
  "evidence": {
    "recordUrl": "https://regbase.jp/en/enforcement/kensetsu-gyoho-shui-dao-ji-gong-20230210",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1107",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T14:20:17.177+00:00",
    "evidenceCheckedAt": "2026-07-17T08:53:38.061+00:00",
    "generatedAt": "2026-07-28T15:25:03.168Z"
  },
  "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.