- Hoang Tung
- Address:Tran Thai Tong Ha Noi, Ha Noi
- Phuong Hoang Co., Ltd.
- Address:B11, 30/4 Dien Bien Phu st., W25, Binh Thanh dist., Hochiminh city Hochiminh city Hochiminh city 08 Vietnam
- BacViet Con JSC.,
- Address:No 11, path 14, Phao Dai Lang street Hanoi Hanoi 10000 Vietnam
- Cleverhand Vietnam Co., Ltd
- Address:127 Ho Ba Kien Street Ward 15 District 10 Ho Chi Minh Coty 8408 Vietnam
- Hatec JSC
- Address:Hanoi, vietnam Hanoi Hanoi 2000 Vietnam
- Diccom Jsc
- Address:86B, Van quan, Ha Dong, Ha Noi Ha Dong Ha Noi Vietnam
- Bac Viet JSC,.
- Address:No. 11, Path 14, Phao Dai Lang street Hanoi Hanoi 10000 Vietnam
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