Amit Dhawan will keep the role as head of emerging corporates for Asia in a dual remit, effective April 22, and will replace Hsiu-Yi Lin, who has left the bank.
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.
Ranking the region as ninth globally by GDP, the bank looks to support emerging corporates as they navigate the unique challenges and opportunities presented by the Greater Bay Area.