Optimal Electronics Corporation
1000 Heritage Center Circle – Suite 166,
Round Rock, TX 78664
Optel Software (Shenzhen), LTD
38/F, Block A, Zin Tian CBC Building,
Fu Min Road, Fu tian District, Shenzhen, China
Phone: +86 1360-2613-806
Optel Software Vietnam Branch
Sannam building, 78 Duy Tan,
Dich Vong Hau, Cau Giay, Hanoi, Vietnam
Phone: +84 8 3923 3985