address：Unit 1701-03, Building A, Hongwell International 1600 Zhongshan Road W, Xuhui District, Shanghai, PRC

address：5/F, Wing Tai Factory Building, 3 Tai Yip Street, Kwun Tong, Kowloon, Hong Kong

address：01, Unit 2, Building 8, 209 Sanse Road, Jinjiang District, Chengdu

address：Room 5178, 1st Floor, East Office Building, 45 Beijing Road, Qianwan Bonded Port District, Qingdao City, Shandong Province