A recent (long) article on the live ape trade from Africa and Asia. Smuggled, Beaten and Drugged: The Illicit Global Ape Trade
Smuggling 2 chimps into Nepal : Inside the cruel world of illegal chimpanzee trading | Daily Mail Online
African action plan to stop the illegal Chimp-trade : Urgent pan-Africa action plan launched by PASA to stop illegal chimpanzee trade as sanctuaries reach crisis capacity
The articles states that the trade in live young chimpanzees is a byproduct of the trade in chimpanzee bushmeat. So, paradoxically, curbing the trade in live chimps would not help these chimps. They would be kept as pets locally, or consumed.
Article about the Chimp-trade : OUR BURNING PLANET: African forest plunder condemns chimpanzees to miserable lives in zoos
Tracing-back the orgin of illegal trafficed Chimps : A genetic map hopes to trace rescued chimps back to their homes
Article about the illegal chimp-trade in Africa : 'The legal and illegal trade are inseparable': The drain of Africa’s chimpanzees for foreign zoos and the report : https://emsfoundation.org.za/wp-content/uploads/BreakingPoint__FINAL_15052020_web.pdf