日本システム技術（4323） – 【Delayed】Notice of Reappointment of Directors

News Release Dated April 28, 2022 Company: Japan System Techniques Co., Ltd. Representative: Takeaki Hirabayashi, President and CEO Stock code: 4323, Tokyo Stock Exchange, Prime Market Contact: Toshinori Hamada, General Manager of Planning & Administration Division Tel: +81-6-4560-1000 Notice of Reappointment of Directors The Board of Directors of Japan System Techniques Co., Ltd. (JAST) approved a resolution on April 28, 2022 concerning the following proposed changes in directors. If approval for these changes is received at the 50th Annual General Meeting of Shareholders scheduled for June 23, 2022, the appointments are to become official at the meeting of the Board of Directors following this shareholders meeting. 1. Directors (1) Directors to be reappointed Takeaki Hirabayashi (President and CEO) Hiroaki Ban Noriaki Okado Yuji Tsuchiya (Senior Executive Director and Officer, in charge of Tokyo Head Office, Medical Big Data Business, Tokyo New Business Promotion and Global Business) (Executive Director and Officer, in charge of Head Office Administration Division and International Affairs) (Director and Officer, in charge of GAKUEN Business, New Business Promotion, BankNeo Business and Western Japan System Integration Business) Chiharu Muguruma (Director and Officer, in charge of Eastern Japan System Integration Business and ASEAN Business Division) Yutaka Hosoe (External Director) Mitsugi Hanai (External Director) Toshiyuki Akiba (External Director) 1 (Reference) Management structure after the 50th Annual General Meeting of Shareholders scheduled for June 23, 2022 Board of Directors Representative Director Senior Executive Director Takeaki Hirabayashi President Hiroaki Ban Name Responsibilities Executive Director Noriaki Okado Director Yuji Tsuchiya Director Chiharu Muguruma External Director External Director External Director Audit & Supervisory Board Full-time Audit & Supervisory Board member External Audit & Supervisory Board member External Audit & Supervisory Board member Audit & Supervisory Board Substitute Audit & Supervisory Board member Yutaka Hosoe Mitsugi Hanai Toshiyuki Akiba Name Katsuro Sonoda Shigeki Taenaka Jiro Mogami Name Keizo Yamamoto Officer, in charge of Tokyo Head Office, Medical Big Data Business, Tokyo New Business Promotion and Global Business Officer, in charge of Head Office Administration Division and International Affairs Officer, in charge of GAKUEN Business, New Business Promotion, BankNeo Business and Western Japan System Integration Business Officer, in charge of Eastern Japan System Integration Business and ASEAN Business Division Responsibilities Responsibilities 2