Hongkong Headquater:
Email:    info@mtkdev.com
Address: 
            7/F
            KIN ON COMM BLDG
            49-51 JERVOIS ST
            SHEUNG WAN
            Hongkong

Shenzhen Office (open Monday through Friday):
Email:    info@mtkdev.com
Address: 12/F,Tiley Central Plaza,Haide 3rd Ave,Nanshan District,Shenzhen City,China
PO Box:   518054