A brief history of Korean interim government, not government in exile, at Chongqing, China during WWII is given in the following reportage:

https://user.guancha.cn/main/content?id=918528 

PS Just in case, if someday people of Taiwan try to establish a government of ROC in exile, or an interim government of Republic of Taiwan in other places, I guess no one in this world dares to accept them unless it wants to declare a war against China.