Workers unload oil palm fruits in a state-owned crude palm oil processing unit in North Sumatra in Indonesia in this file photo. For decades, Indonesia has shipped out tanker loads of raw palm oil for processing into higher value cooking oil and margarine in Rotterdam, Mumbai and Kuala Lumpur. Now, the world’s No. 1 producer of the edible oil is seeing a more than US$2.5 billion wave of investment to build a refining industry that will double its capacity. SD-Agencies