Animals are housed in concrete gang cages, with servicing rooms and a sleeping room attached to a large wire-enclosed outdoor runway. Veterinary rooms provide basic animal care, though as is often the case in Vietnam, equipment is spartan and some medicines are a luxury. However, animals are examined, tested against diseases such as tuberculosis, vaccinated and treated for injury. Animals found to have malaria or tuberculosis are destroyed. All animals are comprehensively tested before export.
Cages are regularly disinfected.
Of the island colonies, Dao Thi near Nha Trang is the largest at 280 ha., holding 500 M. mulatta, half its capacity. Breeding groups are kept on this island. There was once a hamlet on Dao Thi, but the Company moved people from this island because the animals became pests. As a result, monkeys on this island now forage among the orchards and other crops which include mangoes and coconuts. Animals can forage for food on the islands, but they are also provisioned.