Nafovanny in Vietnam is the largest captive-breeding primate facility in the world, supplying long-tailed macaques (Macaca fascicularis) to animal testing laboratories, including Huntingdon Life Sciences in the UK and Covance in Germany.

Nafovanny was set up in 1994 by Vanny Chian Technology, a Hong Kong company, according to Reuters. The company is reported to have set up a U.S.$2 million joint venture company, called Nafovanny, with Vietnam’s Forestry Ministry, with the intention of creating a network of monkey farms in southern Vietnam.

Responding to criticism of the project from Dr. John Wedderburn, a former member of the RSPCA’s ruling council, Daniel Chen, a director of Vanny Chain Technology, said: “We have not got a problem with that because what we are doing is very humane and it is for the welfare of human beings.”