In Sri Lana the majority went with the Left Opposition and did in fact kick out the stalinists. In Vietnam trotskyism was a major movement up until the stalinists started to physically eliminate them in the 40's (might've been a little bit later even). In argentine trotskyism was a major force, but these days is pretty fractured, in bolivia the main trade union COB base their program on the Transistional Program. Just to name some of the more prominent examples. For some reason tehre also seem to be quite a large trotskyist movement in Pakistan.