共有 3 間公司以「RM 706 CHIT LEE COMM BLDG 30-36 SHAU KEI WAN RD HONG KONG」為註冊辦事處。以下為詳細名單。
3 間公司
OYA Innovation Limited
YEE HING ENGINEERING COMPANY LIMITED
SIN HENG CONSTRUCTION WORKS COMPANY LIMITED