Tokai Carbon Co., Ltd. announced personnel changes effective as of October 1, 2023. Hirofumi Masuda's position has been changed from Executive Officer, General Manager, Friction Materials Division to Executive Officer, President & Chief Executive Officer, Tokai Unyu Co., Ltd. Takeshi Nakashima's position has been changed from Executive Officer, Strategic Integration Officer, Tokai COBEX GmbH to Executive Officer, General Manager, Friction Materials Division.