Diamond Communication - Chi Nhanh Ha Noi Joint Stock Company Address: 40, 31 Kim Ma Lane, Giang Vo Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0316476074-002 Phone: 0879999335 Representative: Tran Manh Hung Giang Vo Ward, Dong Da District, Ha Noi CityFounding date: 7 - 8 - 2026