The company has been ordered to recall five batches of popular green tea and energy drink products.
Local carriers may be over-scheduling and planning more flights than they can find passengers for.
Over 15 million people smoke and 30 million others suffer from passive smoking.
"Do not shrug and say, 'Well this is Vietnam and that's just how things are here.'"
A Singapore company has offered to set it up.
Some say the two caves are even more beautiful than the world-famous Son Doong.