Ng Ah Sio’s Pork Rib Soup Eating House is the most popular restaurant serving authentic Bak Kut Teh since moving to Rangoon Road last March 15, 1988. Ng Ah Sio is now a brand that is synonymous to the Bak Kut Teh dish and is more than just a meager dish ~ Hong Kong’s Chief Executive Donald Tsang often dines here.