With which countries has China signed extradition treaties?

China has signed extradition treaties with Thailand, Russia, Belarus, Bulgaria, Romania, Kazakhstan, Mongolia, Kyrgyzstan and other countries, and has acceded to many conventions related to extradition, such as the Convention on the Prevention and Punishment of the Crime of Genocide and the International Convention on the Elimination of All Racial Discrimination.

Extradition refers to the act of a country handing over a person accused or convicted in its territory to another country for trial or punishment at the request of that country. It is a form of criminal judicial assistance between countries. For example, Lai Changxing is currently in Canada, but he is accused of committing crimes in China. China asked Canada to hand him over to China for trial. The act for which Canada should request surrender is extradition.