SUING Co., Ltd. (President: Shinji Yasuda, Headquarters: Minato-ku, Tokyo) announces the following officer personnel changes and new appointments of General Managers (Grade) effective June 24, 2026, and July 1, 2026. New Appointments for Officers, Auditors, and Executive Officers ・Officers (Effective July 1, 2026) Name New Appointment Atsushi Otsuka Representative Director and Vice President, SUING Co., Ltd. Makoto Shimojo Non-Executive Director, SUING Co., Ltd. *Makoto Shimojo will continue to serve as an Executive Officer of INFRONIA HOLDINGS Co., Ltd. after July 1. ・Auditors (Effective July 1, 2026) Name New Appointment Takashi Ishimura Auditor, SUING Co., Ltd. Auditor, SUING AM Co., Ltd. Auditor, SUING ENGINEERING Co., Ltd. ・Executive Officers, SUING Co., Ltd. (Effective July 1, 2026) Name New Position Previous Position Shota Kobe Executive Officer Deputy General Manager, Corporate Planning Division (Concurrent) General Manager, Finance Division Finance Division (Concurrent) General Manager, Finance Division Tomoya Itayama Executive Officer General Manager, Development Division SUING ENGINEERING Co., Ltd. General Manager, System Design Development Department (Concurrent) General Manager, S&M Technology Division Toshihiro Suzuki Executive Officer Deputy General Manager, Engineering Business Division SUING ENGINEERING Co., Ltd. Deputy General Manager, Engineering Business Division (Concurrent) General Manager, PE Technology Division 1 ・Officer Personnel Changes, SUING AM Co., Ltd. (Effective June 24, 2026) Name New Position Previous Position Yuji Tsukamoto Director General Manager, Operations Business Division SUING ENGINEERING Co., Ltd. Director and General Manager, Operations Business Division (Concurrent) Engineering Business Division Seiichi Yamauchi Director Deputy General Manager, Sales Division (Concurrent) General Manager, Asset Management Sales Division Deputy General Manager, Sales Division (Concurrent) General Manager, Asset Management Sales Division Ke