Truong Trung Hoc Co So Yen Kien Address: Hamlet 3, Yen Kien Commune, Doan Hung District, Phu Tho Province Enterprise code: 2600209494 Phone: 0210880743 Yen Kien Commune, Doan Hung District, Phu Tho ProvinceFounding date: 20 - 4 - 1999