Southeast asia citizens are not consider international tourists.... so they dun need apply visa
Oversea tourists exempt from visa fees
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International visitors traveling to Vietnam under the “Impressive Vietnam” promotion program will be exempt from visa fees.
Passport holders from every country in the world who book a tour which is included in the program from May 15 to September 30 will be eligible for the fee exemption, according to a document issued by the Vietnam National Administration of Tourism on May 14.
Tourists can now be issued visas at border gates or at Vietnam’s representative agencies overseas and will receive a free-of-charge stamp, said the document.
Those who arrive after September 30 or who want to stay in Vietnam, longer than their visa allows, will not be eligible for the fee exemption.
Information related to these tours is available at
Impressive Vietnam!.
Source: VNA