At a meeting on February 21, 2024, the Board of Directors of Chatwork Co.,Ltd. resolved the following changes in executive officer positions. New appointment (as of March 1, 2024): Gen Sawaguchi: New position: Executive Officer & General Manager of Corporate Planning Office. Previous position: General Manager of Corporate Planning Office.

Executive officer structure as of March 1, 2024: Masaki Yamamoto - Representative Director, President, Senior Executive Officer & CEO; Naoki Inoue - Director, Senior Executive Officer & CFO; Shoji Fukuda - Director, Senior Executive Officer & COO; Masaaki Tobimoto - Senior Executive Officer, CHRO & Senior Vice President of People Division; Shinya Saito - Executive Officer & Senior Vice President of Communication Platform Division; Yuki Tanaka - Executive Officer & Vice President of Communication Platform Division; Ryoichi Okada - Executive Officer & Senior Vice President of BPaaS Division; Go Kiritani - Executive Officer & Senior Vice President of Incubation Division; Shinsuke Hase - Executive Officer & Senior Vice President of Administration Division and; Gen Sawaguchi - Executive Officer & General Manager of Corporate Planning Office.