Accordingly, if it were built successfully for common visa among countries, you’ll only need to ask one type of visa to travel six member countries of the Mekong sub-region. The countries participating in the forum include China, Thailand, Myanmar, Vietnam, Laos and Cambodia are expected to develop and put into common visa application from 2015. Thailand and Cambodia are currently the two countries first signed an agreement to pilot this model.
From 01 Feb, 2019, Vietnam Immigration Department has added more 35 countries to the Vietnam e-visa program, including Hong Kong (China) and Macau (China). But until now the Vietnam e-visa system is just updated for old version of Hong Kong passport – passport number starts with letter “K”.