Formal letters creating this partnership were signed on 15 February 2012 in Nuremberg, Germany, by Dacian Ciolos, European Commissioner for Agriculture and Rural Development; Kathleen Merrigan, U.S. Agriculture Deputy Secretary; and Ambassador Isi Siddiqui, U.S. Trade Representative Chief Agricultural Negotiator. The signing took place at the BioFach World Organic Fair, the largest trade show for organic products in the world.