Tags Viettel Consultant and Design Joint Stock Company Viettel to divest from three affiliates Thursday, Oct 01, 2020 Viet Nam''s biggest telecom firm Viettel plans to divest capital in three affiliates to over 50 per cent of capital this month and next month. Viettel subsidiary to debut on UPCoM next week Thursday, Dec 13, 2018 Viettel Consultant and Design Joint Stock Company, a subsidiary of military-run telecommunications giant Viettel Group, will list 4.16 million shares on the Unlisted Public Company Market (UPCoM) on December 18.