Coro Mining Corp. announced the results of reverse circulation (RC) step out drilling completed at its Marimaca copper project, located 22km E of the port of Mejillones in the II Region of Chile, (Figs. 1 &2). Results have been received for all 12 RC holes drilled on the La Atomica claim, which adjoins Marimaca to the NW, and for 7 RC scout holes drilled to the NE of the existing resource on the Marimaca claim. Results have also been received for 5 out of 6 geotechnical diamond (DD) holes drilled on the margins of the initial resource. Since discovery in 2016, Coro has drilled a total of 133 RC and 16 DD holes on property for 32,289m. The drilling at La Atomica intersected leachable copper mineralization in ten out of twelve holes, with the remaining two holes confirming the location of the SW faulted boundary of the deposit. The mineralized holes contained multiple intersections of oxides similar in grade and thickness to Marimaca, highlighted by 140m at 0.46% CuT from surface, with some mixed and remnant enriched mineralization at depth, highlighted by 72m at 1.34% CuT. Topographic constraints resulted in two of the holes being drilled in a sub-optimal orientation with respect to the known structure. This step out drilling has confirmed the potential for additional resources in an area of approximately 300 x 300m at La Atomica and it remains open over a further similar area to the NW, where inspection of underground workings has confirmed the presence of mineralization. Thick mineralization averaging 180m at 0.58% CuT was intersected from surface in one of the scout holes drilled some 300m NE of the Marimaca resource, indicating that the deposit continues in this direction. A second hole intersected 42m at 1.82% CuT at depth as mixed and primary mineralization in the area immediately NE of the resource. Of the remaining five holes, three hit partially leached mineralization, possibly associated with faulting, while the other two appear to have defined the southern boundary of the leachable deposit in this part of the claim. All of the reported geotechnical holes intersected leachable mineralization, highlighted by 84m at 1.16% CuT and 96m at 0.61% CuT, with 12m at 3.05% in primary mineralization intercepted at depth on the NE side of the deposit. True widths cannot be determined with the information available at this time. Coro RC holes were sampled on a 2 metre continuous basis, with dry samples riffle split on site and one quarter sent to the Andes Analytical Assay preparation laboratory in Calama and the pulps then sent to the same company's laboratory in Santiago for assaying. A second quarter was stored on site for reference. Samples were prepared using the following standard protocol: drying; crushing to better than 85% passing -10#; homogenizing; splitting; pulverizing a 500-700g subsample to 95% passing -150#; and a 125g split of this sent for assaying. All samples were assayed for CuT (total copper), CuS (acid soluble copper), CuCN (cyanide soluble copper) by AAS and for acid consumption. A full QA/QC program, involving insertion of appropriate blanks, standards and duplicates was employed with acceptable results. Pulps and sample rejects are stored by Coro for future reference.