For those who are wondering if there is a fear of being fined for not using Vietnamese exchanges
1/ Any global exchange is fine because most do not fall under legal jurisdiction in Vietnam
2/ P2P is free and not subject to management as long as there are P2P providers
3/ If you buy coins from Vietnamese projects, you will be fined if the project does not declare to the government

Or Vietnamese exchanges that have not registered with the government and do not have legal status in Vietnam will also be fined like Atx or onus