Zhang Dayong is the chief commercial officer of HashKey Group, and he has extensive experience in the field of Internet payment. Before joining Alibaba subsidiary Lazada, he worked at Ant Group and served as a senior executive for Alipay in Southeast Asia. He joined Alipay in 2008 and is responsible for Alipay's operations in Southeast Asia. In September 2021, Southeast Asian e-commerce giant Lazada created a new position for Zhang Dayong to lead the group's payment business in Southeast Asia.