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or Name
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CA



Cornerstone Capital Resources Inc (2)
Symbol CGP
Shares Issued 639,641,422
Close 2019-04-17 C$ 0.345
Market Cap C$ 220,676,291
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Cornerstone Capital begins drilling Bramaderos

2019-04-18 08:22 ET - News Release

Ms. Brooke Macdonald reports

BRAMADEROS EXPLORATION UPDATE -- DRILLING AT LIMON TARGET UNDERWAY

Cornerstone Capital Resources Inc. has provided an update on its Bramaderos gold and copper project in southern Ecuador, which it is exploring together with Australian Stock Exchange-listed Sunstone Metals Inc. under a farm-in agreement.

Drilling commenced April 13, 2019, at the Limon target, where surface trenching assayed 97.6 metres at 0.71 gram per tonne gold and 0.23 per cent copper over a poorly outcropping porphyry system (see news release 18-18 dated May 29, 2018), and the company has currently drilled about 200 metres following completion of the day shift on April 17.

The drilling contractor is performing well, operating on both day and night shifts and averaging around 20 to 25 metres per shift with zero safety or environmental incidents.

As previously advised, first assay results are expected in late May to early June based on an anticipated time frame of two to three weeks to complete the first drill hole to a depth of approximately 500 m, followed by one to two weeks to complete logging and sampling of the drill hole, and anticipating a turnaround time of approximately four weeks for sample preparation and assay results.

Construction of the drilling platform for the next planned drill hole has been completed.

The initial drill program is anticipated to be approximately 5,000 m and will also include holes at Bramaderos Main to follow up on historical drilling that intersected 248 m at 0.56 g/t gold and 0.14 per cent copper and recent surface trenching that delivered 615 m at 0.52 g/t gold and 0.11 per cent copper (see news release 18-17 dated May 9, 2018), and at West zone where surface trenching has delivered 15.6 m at 6.1g/t gold (see news release 17-40 dated Nov. 8, 2017).

About Bramaderos

The Bramaderos concession is owned by Cornerstone subsidiary La Plata Minerales SA (Plamin), which has signed a binding letter agreement with Sunstone Metals Ltd. (formerly Avalon Minerals Ltd.), whereby Sunstone has the right to earn a 51-per-cent interest in the project by spending $3.4-million (U.S.) over three years to complete a phase 1 drill program. If this first option is earned, Sunstone can go to 70 per cent by financing a bankable feasibility study, and can go to 80 per cent by financing 100 per cent of the cost of construction of a mine and mill (see news release 17-08 dated April 10, 2017).

Qualified person

Yvan Crepeau, MBA, PGeo, Cornerstone's vice-president, exploration, and a qualified person in accordance with National Instrument 43-101, is responsible for supervising the exploration program at the Bramaderos project for Cornerstone and has reviewed and approved the information contained in this news release.

Sampling and assaying

Rock samples are collected by Plamin's personnel, placed in plastic bags, labelled and sealed, and stored in a secure place until delivery by Plamin employees to the LAC y Asociados ISO 9001-2008 certified sample preparation facility in Cuenca, Ecuador.

Rock samples are prepared crushing to 70 per cent passing two millimetres (10 mesh), splitting 250 g and pulverizing to 85 per cent passing 75 microns (200 mesh) (MSA code PRP-910). Prepared samples are then shipped to MS Analytical Services (MSA), an ISO 9001-2008 laboratory in Langley, B.C., Canada, where samples are assayed for a multielement suite (MSA code IMS-136, 15.0 g split, aqua regia digestion, ICP-AES/MS finish) and gold by fire assay (MSA code FAS-111, 30 g fusion, AAS finish). Overlimit results for Cu (greater than 1 per cent) are systematically reassayed (MSA code ICF-6Cu, 0.2 gram, four-acid digestion, ICP-AES finish). Gold is assayed using a 30 g split, fire assay (FA) and AAS finish (MSA code FAS 111). Overlimit results for Au (greater than 10 g/t) are systematically reassayed (MSA code FAS-415, FA, 30 grams, gravimetric finish).

Soil samples are dried at low temperature, screened to 80 mesh (MSA code PRP-757), a 15-grams portion is then assayed for a multielement suite (MSA code IMS-136, aqua regia digestion, ICP-AES/MS finish).

Quality assurance/quality control (QA/QC)

The MSA Analytical Laboratory is a qualified assayer that performs and makes available internal assaying controls. Duplicates, certified blanks and standards are systematically used (one control sample every 20 to 25 samples) as part of Plamin's QA/QC program. Rejects, a 100 g pulp for each rock sample, are stored for future use and controls.

About Cornerstone Capital Resources Inc.

Cornerstone Capital Resources is a mineral exploration company with a diversified portfolio of projects in Ecuador and Chile, including in the Cascabel gold-enriched copper porphyry joint venture in northwest Ecuador. Exploraciones Novomining SA (ENSA), an Ecuadorean company owned by SolGold PLC and Cornerstone, holds 100 per cent of the Cascabel concession. Subject to the satisfaction of certain conditions, including SolGold's fully financing the project through to feasibility, SolGold will own 85 per cent of the equity of ENSA and Cornerstone will own the remaining 15 per cent of ENSA. SolGold is financing 100 per cent of the exploration at Cascabel and is the operator of the project.

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