Coro Mining Marimaca Exploration Update: Additional Drilling Results Confirm Western Extension of Marimaca Mineralization at La Atómica Highlighted by 52 metres at 0.61% CuT and 20 metres at 0.90% CuT
Coro Mining Marimaca Exploration Update: Additional Drilling Results Confirm
Western Extension of Marimaca Mineralization at La Atómica
Highlighted by 52 metres at 0.61% CuT and 20 metres at 0.90% CuT
VANCOUVER, British Columbia, April 11, 2019 -- Coro Mining Corp. (“Coro” or the “Company”) (TSX: COP) is pleased
to announce an update for the Company’s Marimaca Project in the Antofagasta Region of Chile.
An additional and final batch of 15 RC holes for 3,170 metres has been completed at the Atómica section of Marimaca,
bringing the total to 79 holes for 18,270 metres. The results confirm both the south and southwest extension of the
mineralization and the prominent north-south oriented feeder type structures extending north into the Atahualpa section.
Highlights
Results from the additional drilling to confirm the south-southwest extension of mineralization include:
Hole LAR-70
• From 70 to 84 metres, 14 metres of copper oxide mineralization averaging 1.12% CuT
Hole LAR-71
• From 6 to 38 metres, 32 metres of copper oxide mineralization averaging 0.60% CuT.
Results from the additional drilling to confirm the north-south feeder type structures include:
Hole LAR-79
• From 52 to 104 metres, 52 metres of copper oxide mineralization averaging 0.61% CuT,
including from 52 to 72 metres of copper oxide mineralization averaging 0.95% CuT.
Hole LAR-82
• From 122 to 134 metres, 12 metres of copper oxide mineralization averaging 0.90% CuT.
Hole LAR-84
• From 2 to 40 metres, 38 metres of copper oxide and mixed mineralization averaging 0.58% CuT.
Commenting on the results, Sergio Rivera, VP of Exploration said: “The initially planned drilling campaign in the La Atómica
section of the project was expanded in terms of number of drill holes and metres as it became apparent that the mineralized
area was larger than anticipated. We anticipate that the now completed La Atómica drilling program should result in a
significant increase in the overall resource base of the Marimaca project.”
Further Information
These drill holes represent the third and final batch from La Atómica. 15 RC drill holes were completed totalling 3,170 metres:
9 holes to test for the south-southwest extension of mineralisation, and 6 holes to confirm the north-south feeder structures
stretching to Atahualpa. In total at La Atómica 79 holes for a total 18,270 metres have been completed, approximately 50%
more than originally envisaged. The extra costs associated with the additional drilling have been accommodated because the
realised drilling costs were lower than budgeted and some contingencies were drawn down.
The latest drill results have confirmed the south and south-west extension of the mineralization at La Atómica along an
additional 400 x 100 metre west-northwest trending area. The results have also provided further definition of the western limit
of the Marimaca deposit.
Additionally, the east-west 270° oriented holes confirmed the existence of prominent north-south oriented high-grade feeder
type structures that extend further north towards Atahualpa.
A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/e090e75b
-b8b4-4486-acff-6a7f216edd8f
Sampling and Assay Protocol
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 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.
Figure 2: Atahualpa Intersections
Hole TD (m) From To m %CuT Type
LAR-70 250 16 46 30 0.33 Oxide
50 92 42 0.49 Oxide
including 70 84 14 1.12 Oxide
194 226 32 0.31 Mixed
including 194 204 10 0.64 Mixed
LAR-71 250 6 38 32 0.60 Oxide
and 206 212 6 0.55 Oxide
LAR-72 350 152 186 34 0.44 Oxide
200 304 104 0.44 Oxide - Enriched - Mixed
Including 200 212 12 0.46 Oxide
and 218 246 28 0.79 Oxide - Enriched
278 294 16 0.67 Oxide - Mixed
LAR-73 270 No Significant Results
LAR-74 250 68 88 20 0.44 Oxide
100 114 14 0.34 Oxide
228 240 12 0.30 Enriched
LAR-75 250 86 120 34 0.21 Oxide
174 182 8 0.34 Oxide
LAR-76 200 No Significant Results
LAR-77 150 No Significant Results
LAR-78 150 No Significant Results
LAR-79 250 52 104 52 0.61 Oxide
including 52 72 20 0.95 Oxide
LAR-80 250 54 82 28 0.28 Oxide
94 122 28 0.31 Oxide
188 196 8 0.90 Oxide
LAR-81 200 20 32 12 0.22 Oxide
and 94 102 8 0.38 Oxide
LAR-82 200 122 134 12 0.90 Oxide - Primary
and 156 176 20 0.27 Primary - Oxide
LAR-83 60 0 18 18 0.37 Oxide
LAR-84 90 2 78 76 0.41 Oxide
including 2 40 38 0.58 Oxide
and 62 72 10 0.33 Oxide
Figure 3: Atahualpa Drill Collars
Hole Easting Northing Elevation Azimuth Inclination Depth
LAR-70 374756.5 7435398.7 1053.3 310 -60 250
LAR-71 374759.4 7435393.0 1053.6 220 -60 250
LAR-72 374695.7 7435314.6 1048.6 310 -60 350
LAR-73 374706.7 7435311.2 1048.8 220 -60 270
LAR-74 374820.4 7435339.7 1065.3 310 -60 250
LAR-75 374824.4 7435334.5 1065.4 220 -60 250
LAR-76 374529.2 7435438.6 1027.8 310 -60 200
LAR-77 374530.2 7435430.9 1028.0 220 -60 150
LAR-78 374768.7 7435268.9 1050.9 310 -60 150
LAR-79 374842.3 7435824.9 1068.0 270 -60 250
LAR-80 374797.4 7435858.8 1062.2 270 -60 250
LAR-81 374703.7 7435856.4 1021.9 270 -60 200
LAR-82 374630.4 7435876.9 1011.0 270 -60 200
LAR-83 374767.3 7435959.8 999.0 270 -60 60
LAR-84 374721.0 7435960.9 996.9 270 -60 90
Qualified Persons
The technical information in this news release, including the information that relates to geology, drilling and mineralization of
the Marimaca Phase I and II exploration program was prepared under the supervision of, or has been reviewed by Sergio
Rivera, Vice President of Exploration, Coro Mining Corp, a geologist with more than 36 years of experience and a member of
the Colegio de Geologos de Chile and of the Institute of Mining Engineers of Chile, and who is the Qualified Person for the
purposes of NI 43-101 responsible for the design and execution of the drilling program.
Contact Information
For further information please visit www.coromining.com or contact:
Nicholas Bias, VP Corporate Development & Investor Relations
Cell: +44 (0)7771 450 679
Office: +56 2 2431 7601
Email: [email protected]
Forward Looking Statements
This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. These
statements relate to future events or the Company’s future performance, business prospects or opportunities. Forward-looking
statements include, but are not limited to, statements regarding the future development and exploration potential of the
Marimaca Project. Actual future results may differ materially. There can be no assurance that such statements will prove to be
accurate, and actual results and future events could differ materially from those anticipated in such statements. Forward-
looking statements reflect the beliefs, opinions and projections on the date the statements are made and are based upon a
number of assumptions and estimates that, while considered reasonable by Coro, are inherently subject to significant
business, economic, competitive, political and social uncertainties and contingencies. Many factors, both known and
unknown, could cause actual results, performance or achievements to be materially different from the results, performance or
achievements that are or may be expressed or implied by such forward-looking statements and the parties have made
assumptions and estimates based on or related to many of these factors. Such factors include, without limitation: the inherent
risks involved in the mining, exploration and development of mineral properties, the uncertainties involved in interpreting drilling
results and other geological data, fluctuating metal prices, the possibility of project delays or cost overruns or unanticipated
excessive operating costs and expenses, uncertainties related to the necessity of financing, the availability of and costs of
financing needed in the future 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. Accordingly, readers should not place undue reliance on
forward-looking statements. Coro undertakes no obligation to update publicly or otherwise revise any forward-looking
statements contained herein whether as a result of new information or future events or otherwise, except as may be required
by law.