A mobile picking system for sorting a plurality of materials comprising a support frame upon which a conveyor arrangement is mounted, wherein said conveyor arrangement is configured to convey the materials from one end of the support frame to the opposing end and wherein at least one picking station is provided upon the support frame adjacent said conveyor arrangement and wherein the support frame is variable between a working configuration and a transporting configuration by a plurality of support legs which are coupled to the support frame and the conveyor arrangement comprises a picking conveyor and a feed system.