to be summarize this:
- China suggest to make transaction in CNY inside Vietnam territory.
- This is unreasonable suggestion because Vietnam doesn't accept even US dollars to do that.
All transaction inside Vietnam must be done in VND.
Btw, I would bring some US dollars to travel aboard to make sure the exchange rate is better.
I can't make sure if I keep CNY, could I get the exchange done or not when travel to another country. The US dollar could.
To add more, Vietnam's sovereign financial market may be manipulated if using Chinese yuan commonly. Still, Vietnam's economy is over reliance on China for trading, the use of CNY will be even worse the fact.