[1] Established in Tallinn Estonia, in November 2006, GreenPalm was a trading name of Book & Claim Ltd., "a wholly owned subsidiary" of AarhusKarlshamn UK Ltd.[2] GreenPalm ceased to operate as a certificate trading systemon March 31, 2017, being replaced by PalmTrace.

[3] Once an oil palm grower has gone through the RSPO certification process and has been certified, they have four supply chain options to sell through.

Once they are a member they can place bids for, buy and then redeem certificates equal to the amount of physical oil they wish to cover.

Dave McLaughlin, agriculture vice-president, World Wildlife Fund, is reported as stating that "GreenPalm is a transitional tool to give growers the right market signals" that it is worth their while to participate in the RSPO's sustainable palm oil auditing and certification programs.

[4] In an interview subtitled, "The rocky road to sustainable palm oil," Dave Mclaughlin, World Wildlife Fund vice-president for agriculture, states that "buying GreenPalm certificates now might be the only way to stimulate enough production of sustainable palm oil to reach a critical mass that will make fully traceable products economically viable in future.