Chung Sum Wai (Wang Chau)Chung Sum Wai, sometimes transliterated as Chung Sam Wai, is a Punti walled village in Wang Chau, Yuen Long District, Hong Kong.AdministrationChung Sum Wai is a recognized village under the New Territories Small House Policy. It is one of the 37 villages represented within the Ping Shan Rural Committee. For electoral purposes, Chung Sum Wai is part of the Ping Shan North constituency, which was formerly represented by Young Ka-on until September 2021.