The Vietnamese Ministry of Information and Communications will launch a comprehensive probe over TikTok's activities in Vietnam from May 15. Vietnam ranks sixth among the 10 countries with the biggest numbers of TikTok users, the Ministry of Information and Communications reported, citing research company DataReportal. The Vietnamese Ministry of Information and Communications will launch a comprehensive probe over TikTok's activities in Vietnam from May 15. TikTok now has around 49.9 million Vietnamese users aged 18 and above. Vietnam ranks sixth among the 10 countries with the biggest numbers of TikTok users, the Ministry of Information and Communications reported, citing research company DataReportal.