Coro Mining Corp.
TSX : COP

Coro Mining Corp.

September 27, 2011 14:00 ET

Coro Announces 200 Meters at 0.70% Copper Equivalent at Berta Copper Project

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 27, 2011) - Coro Mining Corp. ("Coro" or the "Company") (TSX:COP) is pleased to announce the assay results from the recently completed 24 hole (4,360m) reverse circulation drilling program at its Berta Property, located approximately 20km west of the village of Inca de Oro in the III Region of Chile, at an elevation of 1,700m. Coro announced the terms for the 100% acquisition of Berta in its news release of June 13th 2011.

Table 1: Significant intersections

Hole TD From To m %CuT Au g/t %Mo %Cu Eq Type
BR-01 100 2 54 52 0.26 na 0.003 0.27 Oxide
BR-09 210 74 130 56 0.22 0.02 0.030 0.33 Sulphide
BR-12 100 88 100 12 0.30 0.03 0.005 0.34 Sulphide
BR-13 250 6 16 10 0.33 0.02 0.008 0.38 Oxide
BR-13 74 102 28 0.27 0.02 0.044 0.47 Oxide
BR-13 152 174 22 0.16 0.02 0.127 0.72 Sulphide
BR-15 200 2 68 66 0.23 0.03 0.004 0.26 Oxide
BR-15 140 200 60 0.20 0.03 0.030 0.34 Sulphide
BR-16 200 30 200 170 0.19 0.03 0.004 0.22 Both
incl 30 60 30 0.22 0.06 0.006 0.28 Oxide
incl 60 200 140 0.18 0.02 0.003 0.21 Sulphide
BR-17 200 0 200 200 0.58 0.05 0.021 0.70 Both
incl 0 56 56 0.92 0.08 0.009 1.00 Oxide
incl 56 70 14 0.99 0.08 0.016 1.09 Sulphide
incl 70 92 22 0.37 0.04 0.013 0.45 Oxide
incl 92 200 108 0.40 0.03 0.031 0.55 Sulphide
BR-18 200 0 130 130 0.38 0.03 0.047 0.60 Both
incl 0 88 88 0.44 0.04 0.055 0.71 Oxide
incl 88 130 42 0.24 0.02 0.031 0.39 Sulphide
BR-18 144 156 12 0.84 0.08 0.005 0.91 Sulphide
BR-18 188 200 12 0.20 0.01 0.003 0.22 Sulphide
BR-19 200 20 48 28 0.22 0.10 0.003 0.29 Oxide
BR-20 250 68 98 30 0.26 0.02 0.003 0.28 Sulphide
BR-23 250 0 102 102 0.18 0.02 0.001 0.19 Oxide

Alan Stephens, President and CEO of Coro commented, "We are pleased with the results of this first round of drilling at Berta, which successfully confirmed the results of previous work, and has provided a better understanding of the geological controls to mineralization. The drilling, combined with Coro's reconnaissance mapping, indicates that significant copper-molybdenum mineralization is hosted by multiple, broad, en-echelon, northwest oriented zones of sulphide veining and brecciation, with accompanying albite-chlorite alteration, associated with the emplacement of tonalite porphyry intrusive bodies. At least 10 such zones, each typically 50-100m wide and open ended, have been intersected by drilling within an area measuring approximately 1,500m x 400m. This initial drilling program was concentrated on only one of them. We are currently conducting grid geochemistry and a detailed IP survey, aimed at further defining the known mineralized zones as well as exploring other extensive and previously untested areas of similar alteration and mineralization encountered on the property. Upon completion of this work, we intend to conduct additional drilling at Berta."

All drill hole locations are shown on the attached plan maps, cross section and table.

Holes BR-15 to 18 bottomed in mineralization. Holes BR-02 to BR-08, and BR-10, 11, 21, 22 and 24 were aimed at defining the limits to the known mineralization and had no significant intersections. However, holes BR-02 to 07, drilled to 100m depth, did not reach sulphides and together with holes BR-21 and 23, encountered deep leaching. Copper equivalents were calculated at $2.75/lb Cu, $12/lb Mo and $1,000/oz Au.

All RC holes were sampled on a 2 m continuous basis, with samples riffle split on site and one quarter sent to the Andes Analytical Assaying laboratory in Copiapo for preparation and then to their assay laboratory in Santiago. A second quarter was stored on site for reference. Samples were transported to the laboratory by Andes Analytical Assaying under the supervision of Minera Coro Chile Ltda.'s contractor, South American Management SA, who also logged the drill cuttings. Samples were prepared using the following standard protocol: drying, crushing to better than 80% passing -10#, homogenizing, splitting and pulverizing a 400 g subsample to 95% passing -150#. Holes BR-13 to 24 were analyzed by sequential assaying for CuT, CuSol and CuCN and for Au and Mo, whereas holes BR-01 to BR-07 were assayed for CuT and Mo only, and holes BR08 to BR-12 were assayed for CuT, Au and Mo. A full QA/QC program, involving insertion of appropriate blanks, standards and duplicates was employed with acceptable results.

About Berta

Berta has previously been explored by two major mining companies in the 1990's who completed wide spaced shallow percussion drilling (48 holes, 1,090m), reverse circulation ("RC") drilling (49 holes, 6,033m), and bulldozer trenching. More recently, Grandcru Resources Corp. completed a ground magnetic survey and diamond drilling (9 holes, 3,311.4m) in 2006-2007. All of the previous holes were assayed for total copper (%CuT), and the oxide sections of 42 of the RC holes were assayed for acid soluble copper. With the exception of 42 of the RC holes, all holes were assayed for molybdenum. Small scale artisanal mining of copper oxide bearing breccias, is currently taking place on the property. Copper oxide mineralization typically extends from surface to 25-50m depth, but reaches more than 100m in places. Alan Stephens, FIMMM, President and CEO, of Coro Mining Corp, a geologist with more than 35 years of experience is the Qualified Person for the purposes of NI 43-101.

CORO MINING CORP.

Alan Stephens, President and CEO

About Coro Mining Corp.:

The Company was founded with the goal of building a mining company focused on medium-sized base and precious metals deposits in Latin America. The Company intends to achieve this through the exploration for, and acquisition of, projects that can be developed and placed into production. Coro's properties include the advanced San Jorge copper-gold project, in Argentina, and the Berta, Chacay, Llancahue, El Tapao and Celeste copper exploration properties located in Chile.

This news release includes certain "forward-looking statements" under applicable Canadian securities legislation. Such forward-looking statements or information, including but not limited to those with respect to the prices of copper, estimated future production, estimated costs of future production, permitting time lines, involve known and unknown risks, uncertainties, and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Such factors include, among others, the actual prices of copper, the factual results of current exploration, development and mining activities, changes in project parameters as plans continue to be evaluated, as well as those factors disclosed in the Company's documents filed from time to time with the securities regulators in the Provinces of British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, New Brunswick, Nova Scotia, Prince Edward Island and Newfoundland and Labrador.

To view the maps accompanying this release please click on the following link:
http://media3.marketwire.com/docs/0927cop.pdf

Hole E N Elev TD azi Inc
BR-01 394958 7044266 1,750.0 100 0 -90
BR-02 394911 7044260 1,748.0 100 0 -90
BR-03 394870 7044260 1,746.0 100 0 -90
BR-04 394810 7044265 1,743.0 100 0 -90
BR-05 394755 7044269 1,738.0 100 0 -90
BR-06 394707 7044258 1,737.0 100 0 -90
BR-07 394634 7044261 1,735.0 100 0 -90
BR-08 395100 7044175 1,752.0 200 0 -90
BR-09 395150 7044175 1,760.0 210 270 -65
BR-10 395200 7044175 1,763.0 200 270 -65
BR-11 395100 7044075 1,745.0 250 270 -65
BR-12 395150 7044125 1,754.0 100 270 -65
BR-13 394846 7044465 1,725.0 250 210 -60
BR-14 394940 7044366 1,738.0 250 230 -60
BR-15 395026 7044369 1,735.0 200 230 -70
BR-16 395125 7044327 1,743.0 200 230 -60
BR-17 395056 7044277 1,754.0 200 230 -60
BR-18 395003 7044225 1,751.0 200 230 -60
BR-19 394977 7044176 1,748.0 200 230 -60
BR-20 394877 7044075 1,750.0 250 230 -60
BR-21 394707 7044258 1,737.0 250 230 -60
BR-22 394755 7044269 1,735.0 250 50 -60
BR-23 394830 7044166 1,755.0 250 230 -60
BR-24 394777 7043818 1,720.0 200 0 -90

Table 2; UTM Collar coordinates for Coro RC holes.

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