USA
10755 Scripps Poway Parkway, suite 579 San Diego, CA 92131 
Contact person : Sue
Tel: +1-858-395-3857
Fax:+1-858-503-7772
E-mail:Sue@sigma-tc.com


HongKong
Office 05, 15/F, Seaview Plaza, 283 Shaukeiwan Road, Shaukeiwan, Hong Kong.
Contact person: Nicky
Tel: +852-2904-6161
Fax:+852-2904-8583
E-mail:Nicky@sigma-tc.com


Shenzhen, China
Room 1011~1014,10/F,News Building,No. 2 Shennan Boulevard Middle,Shenzhen, 518027, China
Contact person: Ares
Tel: +86-755-3336-6066
Fax :+86-755-3336-6055
E-mail:Ares@sigma-tc.com 


Suzhou, China
Room 611, 6/F, Youngor International Center, No.535, Shenhu Road, Suzhou Industrial Park, Suzhou, 215000, China.
Contact person: Kevin
Tel: +86-512-8666-8036
Fax : +86-512-8666-8033
E-mail:Kevin@sigma-tc.com


Europe
Laerholzstr.80,Zi.303B,44801 Bochum, Germany
Contact person: William
Tel: +49-234-379-8833
Fax: +49-234-379-8834
E-mail:William@sigma-tc.com


Korea (Cooperation Office)
7F/ 711, Hanshin van B/D, 660-1, Jeonpo-dong, Busanjin-Gu, Busan, Korea
Contact person: Carol
Tel: +82-51-246-7717
Fax: +82-51-255-7717
E-mail: Carol@sigma-tc.com