The US is a leading promoter of corn-based ethanol, but Mr Chidambaram also singled out biofuel from palm oil, an Asia-centred industry led by Malaysia and Indonesia.

• 美国是玉米乙醇的带头支持者，但奇丹巴拉姆还专门提及以棕榈油为原料的生物燃料。棕榈油这个以亚洲为中心的产业以马来西亚和印尼为首。