Customer officials at Tan Son Nhat International Airport in Ho Chi Minh City said Thursday they found more than two kilograms of pseudoephedrine, a drug precursor, in a consignment leaving for a foreign country.
They checked the consignment weighing 96 kilograms after finding it suspicious.
The owner of the consignment, identified only as T.T.T, had labeled it as containing clothes and food.
But the officers found the pseudoephedrine cleverly hidden in coffee boxes.
It is probably worth VND2 billion (US$94,854), they said.
It was handed over to the HCMC narcotics police for further investigation.
Vietnam has some of the world's toughest drug laws -- those convicted of possessing 100 grams of heroin or cocaine or 300 grams of other drugs face capital punishment.