Email: info@oqcs.com

Phone: +86 20 2893 9407

Offshore Quality Consultant Services (HongKong) Limited

23/F Wing On Cheong Building

5 Wing Lok Street, Central,  Hong Kong SAR

GuangZhou Offshore Quality Consultant Services Limited

Unit 2013, 20th Floor. Ying Yan Tower

25 YanLing Road, Tian He District

Guangzhou, Guangdong Province, China