Formerly Asia Pacific leader at EY-Parthenon, Tong joins the performance and technology practice as partner and managing director, and will also co-lead the Greater China business.
Anthony Pullin's last day will be on March 27, with group financial controller Warrick Van der Merwe stepping in as interim CFO as the Melbourne-headquartered betting technology firm looks for a replacement.
Anuraag Srivastava has agreed to lead the finance and secretarial function at media conglomerate Bennett, Coleman & Co., which owns The Times Of India.
Hai, who will be based in Shanghai, has worked across a variety of roles within Citi's markets business in Singapore, Taiwan, Hong Kong and mainland China.
The experienced leader will oversee financial strategies and treasury functions at the fast-growing education firm, with head of finance Rohit Agarwal taking on a more global role.