1. 11 Mar 2026 Business Suspension
| Authority | Gunma Prefecture |
|---|---|
| Law / type | Construction Business Act / Business Suspension |
| Summary | In late June of Reiwa 6 (2024), Yuichiro Kosaka, then CEO of Tano Sangyo Co., Ltd., received secret information regarding the minimum bid price for the Hirai Elementary School Gymnasium Major Renovation Construction Project from Eio Tsukamoto, Vice Mayor of Fujioka City, by phone. Around July 3, Reiwa 6, Yuichiro Kosaka instructed Tano Sangyo Co., Ltd. to submit a bid equal to the minimum bid price and on July 4, the company was awarded the contract for the project. This involved using fraudulent means and disclosing confidential information related to the bid to unfairly influence the contract award. On October 7, Reiwa 7, the Maebashi District Court sentenced him to 1 year and 6 months in prison, with a three-year probation, and the sentence was finalized. |
| Source | https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=2000 |