Toshiya Koyama

Toshiya Koyama has extensive experience at Teijin Limited, where a career began in April 1986 and continues to the present as a Mission Executive and Executive Corporate Officer, overseeing the Material Business of Teijin Group. Koyama has held various senior roles, including General Manager of the Material Business Group and Chief Social Responsibility Officer. Additionally, Koyama served as Chairman of the Japan Carbon Fiber Manufacturers Association from July 2019 to December 2023. Educational qualifications include a Master’s Degree in Chemistry from Waseda University and an MBA in Financial Engineering from Tokyo Metropolitan University.