The Roundtable on Sustainable Palm Oil has launched a new logo that it hopes will spur more companies into improving their sourcing policies.

The RSPO's 602 members will be able to display the logo on products ranging from biscuits to cosmetics if more than 95% of the palm-derived ingredients are sourced in compliance with RSPO supply chain systems.

Only 9% of the palm oil produced worldwide is RSPO-certified. The logo would make it clear to consumers whether products contained sustainably sourced oil, said RSPO ­secretary general Darrel Webber. Being able to display such a positive logo on products would stimulate companies across the supply chain to step up efforts to source sustainable palm oil, he added.

"The trademark will soon make it possible for consumers to make a well-informed choice for products containing sustainable palm oil," he said. "This would boost global demand, which is important in view of the remarkable growth in the production of certified sustainable palm oil by growers in West Africa, Malaysia, Indonesia, Papua New Guinea and South America."

RSPO has 75 UK members including Tesco, M&S and Unilever, the largest global buyer of palm oil.

"This is the time to achieve a breakthrough in global demand for certified palm oil," said RSPO president Jan Kees Vis, who is also Unilever's director of sustainable sourcing development. "The trademark will play a key role, as does the commitment by a growing number of companies to only use sustainable palm oil by 2015."