Malaysia control cooking oil buying

Malaysia has imposed the cooking oil buying control, due to the panic buying and rumours. There is indeed a shortage of oil and you can hardly find oil in the provision shop. No reason has been given to the shortage. But, there is something really wrong with this scenario.

Being a palm oil producing country, we are short of cooking oil? It is a joke. Possible reason I could think of maybe

1. Because it is controlled price item, manufacturer reluctant to produce more
2. Recent palm oil price, cause them to sell the oil to other people instead for domestic consumption

If the market is controlled, we are bounded to see this kind of anomaly. Looks like inflation has taken another twist for the year.