Many people in Hong Kong keep pets despite of the cramped living conditions. You can buy a pet in the pet shops or you can acquire a pet from the RSPCA (Tel : 2523 3944) which always looks for good homes for the healthy abandoned animals.
If you choose to import your pet from aboard, you need to obtain a special permit from the Agriculture and Fisheries Department. Besides, quarantine of pets will be assessed upon their arrival.
Society for the Prevention of Cruelty to Animals(SPCA)
http://www.spca.org.hk