Chinese short-video app Kuaishou Technology's billionaire Co-founder Su Hua has stepped down as the CEO. He will be succeeded by Kuaishou's Co-founder Cheng Yixiao and Su's role as the Chairman of the board will remain the same, Kuaishou said. Earlier this year, ByteDance Founder Zhang Yiming and e-commerce company Pinduoduo's Founder Huang Zheng stepped down as CEO and Chairman, respectively.