Sach Rubybooks Joint Stock Company Address: Phan Kien Hamlet, Son Dong Commune, Tinh Phu Tho, Viet Nam Enterprise code: 2500782447 Phone: 0368279526 Representative: Tran Xuan Hau Son Dong Commune, Lap Thach District, Phu Tho ProvinceFounding date: 11 - 8 - 2026