Company profile

Company profileConfirmed enforcement recordsEnglish summaries 1/1Japanese original

小久保鉄筋工業株式会社

小久保鉄筋工業株式会社· Corporate Number: 2030001085408

小久保鉄筋工業株式会社 is a Japanese company registered in Tokyo with Corporate Number 2030001085408. RegBase lists 1 public-source enforcement record for this company. The latest listed record is classified as Business Suspension by Kanto Regional Development Bureau under the Construction Business Act on 9 Jun 2026. Users should verify material records against the original Japanese source before making legal, credit, procurement, or onboarding decisions.

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This page brings together Official Gazette notices, enforcement records, registry data, related-company signals, and source-review links for one company. Open individual enforcement records from the history section below.

Public Record Summary

Enforcement records
1
Licence actions
1
Registry changes
3
Latest public record
9 Jun 2026

Company Identity and Registry Data

English display name
小久保鉄筋工業株式会社
Original Japanese name
小久保鉄筋工業株式会社
Kana name
コクボテッキンコウギョウ
Corporate Number
2030001085408
Representative
小久保 和成
Registered address
東京都港区芝３丁目４３番５号三田加藤ビル３階

Corporate Number site: fetched 13 Jul 2026

Data sources

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Public documents and saved materials

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Licence and registration actions

Published revocations, suspensions, restrictions, expiries, and reinstatements linked to this verified legal entity.

Confirmed identity · 1 record
ConstructionSuspensionEndedSanction for non-compliance

Kantō Regional Development Bureau

Action date
9 Jun 2026
Licence or registration number
国土交通大臣許可(般-7）第029505号
Effective period
24 Jun 2026 – 26 Jun 2026
Scope · original Japanese text
１ 停止を命ずる営業の範囲 全国における鉄筋工事業に関する営業の全部 （注１）「鉄筋工事業に関する営業」とは、注文者から鉄筋工事を請け負う営業をいう。 ２ 期間 令和８年６月２４日から令和８年６月２６日までの３日間

The official source identifies this as a measure for non-compliance.

Open the official-record viewOfficial source

Enforcement and administrative action history

Construction Business ActBusiness Suspension
Confirmed entity match

The representative director of Kobukubo Rebar Construction Co., Ltd. engaged in labor law violations by having three workers perform overtime and holiday work beyond the hours specified in agreements related to a one-year variable work hour system, between June 21 and July 20, 2024, without legal exemption. On January 9, 2026, the company and its representative director received a summary order from the Omiya Summary Court for violating the Labor Standards Act, each fined 300,000 yen, with the penalties finalized. This conduct is deemed to fall under Article 28, Paragraph 1, Item 3 of the Construction Business Act. As a result, the Kanto Regional Development Bureau issued a three-day business suspension from June 24 to June 26, 2026, covering all construction business activities related to rebar work nationwide at the company's main office located at 245 Iizuka, Kumagaya City, Saitama Prefecture.

9 Jun 2026Kantō Regional Development Bureau
Official source URL recordedKiroku archive not completedReview details and sources on RegBase

Language

日本語版を見る (Japanese)

Registry changes

Name changes

  • 小久保鉄筋工業株式会社(2015-10-05 - present)

Registered address changes

  • 埼玉県熊谷市飯塚２４５番地９(2015-10-05 - 2024-09-12)
  • 東京都港区芝３丁目４３番５号三田加藤ビル３階(2024-09-12 - present)

Breakdown by law

Breakdown by action type

About this English name

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