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Head office:No. 2/13, Hau Ai Hamlet, Son Dong Village, Hanoi, Vietnam
Mobile: +84 944 755 799                    
Transaction office: No263- 423 street, Trung Binh Population groups,
Duong Noi ward, Hanoi, Vietnam 
Tel: +84 4 3745 0122    EXT:108 ; Fax:+84 4 3745 0124     
E-Mail: info@kingtech.vn ; Skype: vuiltvn;   Website:kingtech.vn