23/03/2012 (Reuters) - Indonesia, the world's top palm oil producer, will increase its export tax for crude palm oil to 18 percent for April from 16.5 percent in March and leave its tax on cocoa beans unchanged at 5 percent for April, a trade ministry official said on Thursday.

The government will also raise the export tax for RBD palm olein to 9 percent in April, versus 8 percent in March.