Hong Kong – Head Office
Address: Room 402, 4/F., Victoria Centre, 15 Watson Road, North Point, Hong Kong
Tel.: (852)-28652556
E-mail: coil@coilco.com.hk

Beijing Branch

Address: RoomB622-B623, Nan Xin Cang International Tower, A22 Dong SiShi Tiao, Dong Cheng District, Beijing, China
Tel.: (86)-010-51690286
E-mail: coil-bj@vip.163.com

Shanghai Branch

Address: Room810-812, Chuangzhan Building, No.928 Xikang Road, Jingan District, Shanghai, China
Tel.: (86)-021-62760101
E-mail: coilcoltd@163.com

Chengdu Branch

Address: Room 601, 4 Building, Idealism Center, No.38 TianYi Road, Gao Xin District, Chengdu City, Si Chuan Province, China
Tel.: (86)-028-61554996
E-mail: coil-cd@163.com

Xian Office

Address: Room 1105, Block B, Oak Constellation, No.3 Keji 5 Road, Gao Xin District, Xian, Shanxi, P.R. China
Tel.: (86)-029-88338696
E-mail: coil-xa@163.com

Hainan Branch

Address: 5/F., Huayin Building, North Longku Road, Haikou City, Hainan, China
Tel.: (86)-0898-66713152
E-mail: haikoqiao@163.com

Shenzhen Office

Address: C1058-60 Bonny Space Shennan Road, No.9039 Nabshan District, Shenzhen, China
Tel.: (86)-0755-88351110
E-mail: coilsz@126.com