Yu Kato is the Founder and CEO of Harch Inc., a Tokyo-based certified B Corporation specializing in media and design for sustainability and the circular economy. Harch operates multiple initiatives, including Circular Economy Hub, Circular Yokohama, and Circular Startup Tokyo. He serves as a circular economy advisor to several municipalities in Japan, a Director of the Circular Futures Design Center at Shizenkan University, and an Outside Director of NIKKO Company, a Japanese tableware manufacturer.