Oroco Resource Corp. advises that Sonoran Resources LLC. and its Mexican subsidiary, SR Servicios Mineros, S.A. de C.V., have filed a lawsuit in Arizona against Oroco, Minas de Oroco Resources, S.A. de C.V., and Goldgroup Mining Inc. arising from events and services related to the engineering, procurement and construction management agreement and related service agreements between Oroco, Minas de Oroco and Sonoran in regard to the mine construction at Cerro Prieto, Sonora State, Mexico. In August of 2013, Oroco sold MOR, the owner of the Cerro Prieto Property, to Goldgroup.