'Concrete Surgeons' Tsuzuki Diamond Industrial Sponsors 'Sugawara-kun Racing' Led by 'Ex-Tax Accountant Sugawara-kun'

Tsuzuki Diamond Industrial Co., Ltd. (Headquarters: Osaka City, Osaka Prefecture; Representative Director: Takami Tsuzuki), which handles X-ray exploration and core boring, is pleased to announce its agreement with and sponsorship of 'Sugawara-kun Racing', a motorsports team launched by Yuichi Sugawara, also known as the business YouTuber 'Ex-Tax Accountant Sugawara-kun'. ■ Background of Sponsorship: The Challenge of Facing 'Invisible Risks' Tsuzuki Diamond Industrial is a company whose strength lies not just in 'drilling holes in concrete', but in 'structural judgment'—visualizing the internal structure before construction to ensure safety. It is said that many accidents and structural damages at construction sites are not caused by construction techniques themselves, but by a 'lack of prior confirmation and judgment'. However, this area of judgment requires high expertise and has long been a black box. In response to this issue, we aim to establish a new position as a 'specialized structural judgment company', continuing to challenge and change common industry practices. Meanwhile, Sugawara-kun Racing is advancing its challenge of entering motorsports from a different industry and building a team from scratch. The resonance between our stance of 'visualizing invisible risks and changing standards' and the team's philosophy of 'co-creation' to challenge new value creation led to this sponsorship. ■ Comment from Representative Director Tsuzuki I strongly resonated with Mr. Sugawara's philosophy of 'co-creation', which led to the decision for this sponsorship. Every day, we work to visualize the risks hidden inside concrete and build a foundation of safety. I feel that the challenge of Sugawara-kun Racing gives many business managers and workers the courage to take a new step forward. We will continue to support this challenge with all our might. ■ About Sugawara-kun Racing A motorsports team established in 2025 by business YouTuber Yuichi Sugawara, who has over 1.61 million subscribers (as of April 2026). The team aims to build a culture where not only 'speed' matters, but fans and sponsor companies can enjoy the process together and grow. ■ About Tsuzuki Diamond Industrial Co., Ltd. Founded in 1979 (Incorporated in 1986). A specialized company known as the 'Concrete Surgeons', boasting strengths in visualizing internal structures via X-ray exploration and making advanced structural judgments. Currently, they are also focusing on strengthening information dissemination, promoting improved safety and brand awareness across the entire construction industry. - YouTube: https://www.youtube.com/@drill2-3 - Instagram: https://www.instagram.com/k.tsuzuki3739/ - Facebook: https://www.facebook.com/profile.php?id=61586490864098 - TikTok: https://www.tiktok.com/@k.tsuzuki.3739 - X: https://x.com/tsuzuki3739 [Company Information] Company Name: Tsuzuki Diamond Industrial Co., Ltd. Established: October 31, 1986 (Founded January 10, 1979) Representative: Representative Director Takami Tsuzuki Business Contents: X-ray exploration, core boring, wall saw, chemical anchor Headquarters: 1-19-47 Kirenishi, Hirano-ku, Osaka City, Osaka Prefecture URL: https://tsuzuki-dx.com/