Ha Ha LTD Address: No 33, Toan Thang Lane, Kham Thien Street, Tho Quan Ward, Dong Da District, Ha Noi City Enterprise code: 0101817969 Phone: 0248512261 Representative: Pham Ngoc Linh Adress: No 42 Yet Kieu, Cua Nam Ward, Hoan Kiem District, Ha Noi City Tho Quan Ward, Dong Da District, Ha Noi CityFounding date: 17 - 11 - 2005