Quoc Te Sapphire Company Joint Stock Company Address: Hamlet 2, Phu Hau Hamlet, Thuy Van Commune, Viet Tri City, Phu Tho Province Enterprise code: 2601120288 Phone: 0354985528 Representative: Nguyen Thi Theu Thuy Van Commune, Viet Tri City, Phu Tho ProvinceFounding date: 31 - 3 - 2025