Riken Technos Corporation announced that the following changes in directors were decided on at the Board of Directors meeting held on April 30, 2024. Retiring Directors (excluding Directors serving as Audit & Supervisory Committee Members): Hitoshi Sugino - Director, Senior Executive Officer. Senior General Manager,Technical Division.

Mr. Hitoshi Sugino will retire from his post at the conclusion of the Ordinary General Meeting of Shareholders to be held on June 21, 2024, when his term of office will expire, but will continue to serve as Senior Executive Officer and Senior General Manager, Technical Division. Retiring Directors serving as Audit and Supervisory Committee members: Masato Koizumi - Director, Full-time Audit & Supervisory Committee Member. Takayuki Hayakawa - Outside Director, Audit & Supervisory Committee Member (Independent Director).