According to Joseph Tsai bio, he was born as Tsai Chung-Hsin. He was born in 1962/64 in Taipei, Taiwan, Republic of China but his exact date of birth is still unknown. Tsai is best known for being the co-founder of Alibaba Group. Joseph Tsai place of abode is in Canada and is one of the richest people with billions of net worth.

https://networthbiowiki.com/joseph-tsai-bio-wife-yale-canada-and-net-worth.html