Though cooperatives in Metema have important roles to play in favor of their members they are still marketing their member's sesame inefficiently, so building capacity of cooperatives and their employees, commencement of appropriate organizational structure to cooperative promotion offices, strengthening cooperative leadership, establishment of ECX market centers at the nearest possible places to the offices of cooperatives are some of the actions to be done for improvement of this inefficiency. In addition to this cooperatives in Metema could improve their marketing efficiency by working together with ECX so as to device the ways through which they can make the best use of the services of the commodity exchange system.