Thanh Son LTD Address: Khu 4, Vinh Quang Town, Hoang Su Phi District, Ha Giang Province Enterprise code: 5100173206 Phone: 0219831335 Representative: Ngo Canh Hoan Adress: Khu 4, Vinh Quang Town, Thanh Son Commune, Kim Bang District, Ha Nam Province Vinh Quang Town, Hoang Su Phi District, Ha Giang ProvinceFounding date: 7 - 3 - 2003