Coro Mining Corp. announced the results of a maiden resource estimate completed at its Marimaca copper project, located 22km E of the port of Mejillones in the II Region of Chile. As announced on August 4, 2016, Coro is finalizing the acquisition of Minera Rayrock Ltda. (Rayrock), owner of the Ivan 10ktpy Cu capacity solvent extraction/electro-winning (SXEW) processing plant, and this initial Marimaca estimate was completed with the objective of defining sufficient resources to confirm the merits of completing this acquisition. An additional approx. 20mt of potential mineralization was identified during the modelling which could not be classified as a resource, based on the currently available drill hole information. In order to demonstrate the potential economic viability of the Marimaca resource, a series of Whittle pit optimizations was completed utilizing appropriate operating costs, results obtained from preliminary metallurgical test work, and a variety of copper prices. The resources were estimated only for oxide and mixed copper mineralization which can be processed by heap leaching (HL) and run of mine (ROM) leaching to produce cathode copper. No resources were estimated for enriched and primary sulphide mineralization, occurring in deeper portions of the deposit. The pit resource is constrained by the Marimaca property limits, such that all blocks occurring outside the property were assigned a 0% CuT grade. The Chilean mining code permits sufficient push back of pit walls onto adjacent properties to allow for the extraction of resources present on the property. The pit contains a total of 54,436kt of waste, including mineralized blocks that did not fall into a resource category; low grade ROM material; and blocks outside the property limits, for an overall strip ratio of 1.31:1.