Company profile

Company profileConfirmed enforcement recordsJapanese 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

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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
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

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

No official English name source is recorded. The original Japanese name is shown.

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