Sambounion Vietnam Sambo Federation 2017-10-10 Vietnam Sambo Federation AddressNo.36 Tran Phu street, Ba Dinh district, Hanoi, Vietnam Telephone (fax)+84 903 406 488+84 43 747 2074 vietsambo@gmail.com Federation leaders Hoang Vinh Giang President Nguyen Huu An Secretary General