Animals Asia is an international animal welfare organization. They are interested in qualified volunteers.
Asiatic Black Bear Rescue
Two centers, one in China, the other in Vietnam, care for bears rescued from bile farms. They provide volunteers with accommodation and meals. They accept applications for vet nurses and bear managers, who are tasked with providing the bears with enriched environments.
Dr. Dog and Professor Paws
Volunteers and their dogs go to hospitals and schools in Hong Kong to provide Animal Assisted Therapy. You do not need a dog to participate, though you can bring your dog if he or she meets the qualifications.