Kyokushin Hamai Group: Announcement of the Transition to a New Organizational Structure

We extend our heartfelt thanks for your continued kind support and goodwill.

We are pleased to announce that, as of September 2026, the Kyokushin Hamai Group has established an executive board and transitioned to a new organizational structure. Upholding and carrying forward the teachings inherited from Sosai Masutatsu Oyama and the aspirations of our founder, Noriyasu Hamai, we will strive more than ever to develop our athletes and to spread the way of karate.

We respectfully ask for your continued guidance and encouragement.

• Supreme AdvisorSatoshi Yui
• PresidentMika Hamai
• Vice PresidentShinji Nakashima
• Vice PresidentAkira Ishikawa
• Chief Operating OfficerTakuya Nemoto
• Senior AdvisorTakahiro Yamaguchi
• Secretary GeneralHiroshi Kato