The government last year awarded its first trial 5G licence to Viettel, the country's largest telecommunication company.

In June, Vingroup JSC, Vietnam's biggest-listed firm by market value, signed a deal with Qualcomm and a unit of Japan's Fujitsu Ltd to produce 5G smartphones in the country.

(Reporting by Khanh Vu; Editing by Edwina Gibbs)