Information required to register a Vietnamese trademark:
Name of the applicant; (Personal application: provide ID card or passport; Company application: provide a copy of the company business license)
Vietnam trademark registration time
Official acceptance receipt: 5 weeks;
Time required for registration: 12- 18 months;
Vietnam trademark registration process
Trademark inquiry-application-formal examination-substantive examination-announcement-issuance of registration.
If in doubt, you can learn from Baidu Kaide Alliance.