VStar Joint Stock Company is a manufacturing factory with about 100 employees. The factory is near Mong Son and Lieu Do 4 stone mines in Yen Binh district, Yen Bai province. This is the source of high-quality stones with 98.5% pureness, ≥ 98% whiteness and ≥ 95.5% reflection.
It has 9 manufacturing chains in European standard, with productivity of 300.000 tons per year.
The main manufaturer of SANVAS is Eco Green Plastic JSC which has the same staff as V.Star and effective working system. EGP based in Yen Binh district, Yen Bai province. EGP has european advanced technology production lines.