Optimats Joint Stock Company Address: 57 Vu Thanh, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0102128263 Phone: 0912779614 Representative: Pham Thiet Hung Adress: No 68 Phan Dinh Phung, Quan Thanh Ward, Ba Dinh District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 3 - 1 - 2007