Hoang Hai LTD Address: Civil Group 5, Yen The Town, Luc Yen District, Yen Bai Province Enterprise code: 5200446182 Phone: 02163509275 Representative: Nguyen Van Trong Yen The Town, Luc Yen District, Yen Bai ProvinceFounding date: 17 - 7 - 2009