Omegastone Joint Stock Company Address: No 55 Tran Cao, Voi Street, Voi Town, Lang Giang District, Bac Giang Province Enterprise code: 2400812183 Phone: 0937477808 Representative: Nguyen Van Phong Voi Town, Lang Giang District, Bac Giang ProvinceFounding date: 29 - 3 - 2017