Except for the usual prohibitions against narcotics, explosives, firearms, and ammunition and modest limits on alcohol, tobacco products, and perfume, you can bring anything you want into Hong Kong, including an unlimited amount of money. Nonresidents may bring in, duty-free, 200 cigarettes or 50 cigars or 250 grams of tobacco, and 1 liter of alcohol.
Hong Kong Customs & Excise Department (2815-7711. www.customs.gov.hk).