共有 4 間公司以「RM 804, 8/F LAP FAI BLDG 6-8 POTTINGER ST CENTRAL HONG KONG」為註冊辦事處。以下為詳細名單。
4 間公司
UNITED CONTROL (HONGKONG) LIMITED
VISTA ENERGY INVESTMENT (HONG KONG) LIMITED
BAISAN TRADING (HK) LIMITED