At present, they have not banned the import of diggers into the country and it is possible to increase the price of electricity for digging farms.
They do not prohibit bitcoins and other types of altcoin but do not recognize them, they prohibit the use of bitcoin as a means of payment.
For example, if you buy a house where you use bitcoin to pay, it is illegal to use vnd to pay
You are saying the same thing! If bitcoin/altcoin is banned as a means of payment in Vietnam, of what other use will they serve? Is this not still prohibition? There are even penalties to be paid ranging from 150 to 200 million Vietnamese Dong if any one contravenes the ban.