Idemitsu Kosan Co.,Ltd. announced that Takashi Tsukioka appointed as Chairman and Representative Director of the company, Currently he is Chief Executive Officer and Representative Director. Shunichi Kito appointed as Chief Executive Officer and Representative Director, currently he is Executive Vice President and Director. Takashi Matsushita appointed as Executive Vice President and Representative Director, Currently he is Executive Vice President and Director.

All the appointments are effective April 1, 2018. The company announced retirement of Daisuke Seki as Executive Vice President and Representative Director, effective March 28, 2018.