No.4, 408 Hai Au Building, 39B Truong Son Str., Wart 4, Tan Binh Dist.,
No38 - BT1 - Me Tri Ha
No 232 An Trach Dong Da Dist, Ha Noi City, Hanoi, Vietnam
002-003 Nguyen Ai Quoc
5th Floor, 88 To Vinh Dien Street,, Ha Noi City
7th Floor, Plaschem Building, 562 Nguyen Van Cu, Long Bien