The proposed agreement has the potential to reduce trade barriers between the two trading blocs. A key output of the Plan is the creation of voluntary partnership agreements (VPAs) between the EU and tropical timber-supplying countries. As of May 2014, VPAs had been signed with six countries - Cameroon, the Central African Republ ic, the Republic of the Congo, Ghana, Indonesia and Liberia. It is estimated that about 30% of total global roundwood production originates from certified forest areas.