Chí Linh is a city in Hải Dương Province, in the Red River Delta region of Vietnam. In 2010, Chí Linh District was upgraded to a district-level town and in 2019, Chí Linh town became the second provincial city of Hải Dương Province. Chí Linh is a district in which six rivers converge, with features such as hills, mountains, and forests. The capital of the city is Sao Đỏ.