Coro Mining Corp. (TSX:COP) ("Coro" or the "Company") is pleased to announce
that it has completed preliminary metallurgical column test work at its Berta
project, located 19km W of the village of Inca de Oro in the III Region of
Chile. In addition, a NI-43-101 compliant independent resource estimate is
expected to be completed shortly.


A total of 3 representative samples were collected; a high grade sample from a
diamond drill hole; and a medium and a low grade sample from surface trenches.
The trench samples had atypically low soluble copper ("CuS") grades due to
surface weathering. The samples were sent to Geomet S.A. metallurgical
laboratories in Santiago, Chile for compositing and test work, and subsamples
taken for mineralogical categorization were sent to Mineralogia Aplicada a
Metalurgia (M.A.M. Ltda.), also of Santiago. Four 2m columns were completed for
each sample; one at P80 -3/4" and a second at P80 -3/8", with a duplicate for
each crush size.


Summary leach results for the 3/8" columns are shown on Table 1, and leach
kinetics and net acid consumption ("NAC") on Figures 1 & 2 (to view Figures 1 &
2 click on: http://media3.marketwire.com/docs/cop115i.pdf).




Table 1: Summary leach results

----------------------------------------------------------------------------
                             Head assays  Theoretical     Actual         NAC
                             -----------  -----------  ---------        ----
                                 %     %            %  Rec   Rec            
Column   Sample location       CuT   CuS          Sol  CuT   CuS  Days  kg/t
----------------------------------------------------------------------------
P80 3/8" BDH07-07 Drill core  0.84  0.59          70%  91%  130%    26    21
Comp A                                                                      
----------------------------------------------------------------------------
P80 3/8" Surface trench       0.66  0.36          54%  68%  126%    28    24
Comp B   (partially leached)                                                
----------------------------------------------------------------------------
P80 3/8" "                    0.38  0.14          37%  56%  150%    28    22
Comp C                                                                      
----------------------------------------------------------------------------



This test work demonstrates that Berta oxide material may have rapid heap leach
recoveries in excess of theoretical percent solubility due to the presence of
significant copper wad which is soluble in the reducing, ferrous sulphate rich
conditions of  the column, but which did not report to the %CuS head assay. 


Alan Stephens, President and CEO of Coro, commented, "We are pleased the test
work indicates that 100% recovery of CuS, even of low grade material, may be
achievable with approx. 15 kg/t NAC after 15 days. Actual heap leach recoveries
and residence times would be partly a function of relative copper and acid
prices. We are very encouraged by the results of this test work, and look
forward to receiving the resource estimate shortly."


Sergio Rivera, Coro's Vice President of Exploration, a geologist with more than
30 years of experience and a member of the Colegio de Geologos de Chile and of
the Instituto de Ingenieros de Minas de Chile, was responsible for the design
and execution of the sampling program at Berta and is the Qualified Person for
the purposes of NI 43-101. Alan Stephens, FIMMM, Coro's President and CEO, a
geologist with more than 36 years of experience, and a Qualified Person for the
purposes of NI 43-101, is responsible for the contents of this news release.


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,
El Desesperado, Payen, El Inca, Chacay, Llancahue, and Celeste copper properties
located in Chile.


For further information please visit the Company's website at www.coromining.com.

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 metallurgical recoveries
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.


FOR FURTHER INFORMATION PLEASE CONTACT: 
Coro Mining Corp.
Michael Philpot
Executive Vice-President
(604) 682 5546
investor.info@coromining.com
www.coromining.com
Marimaca Copper (TSX:MARI)
Historical Stock Chart
From Jun 2024 to Jul 2024 Click Here for more Marimaca Copper Charts.
Marimaca Copper (TSX:MARI)
Historical Stock Chart
From Jul 2023 to Jul 2024 Click Here for more Marimaca Copper Charts.