Vancouver, British Columbia - Capstone Mining Corp. ('Capstone' or the 'Company') (TSX:CS) announces that its Pinto Valley mine has successfully demonstrated positive economics from enhanced dump leach performance by partnering with Jetti Resources, LLC ('Jetti') to apply their novel patented catalytic technology at Pinto Valley's existing dump leach operation.

HIGHLIGHTS

During the first year of Capstone's partnership with Jetti, cathode production per area irrigated has doubled. A plan to increase activity is being implemented with the goal of generating strong cash flow from Pinto Valley's underutilized 25 million pound per year solvent extraction and electrowinning ('SX-EW') plant, which is currently operating at only 20% of capacity. The plan is to increase cathode production to 300-350 million pounds from residual and high-grade waste over the next two decades, creating 30 new jobs at Pinto Valley.

Darren Pylot, Capstone's President and CEO said, 'The mining industry has long been pursuing a viable technology to leach low-grade chalcopyrite ores. The results after year one of our partnership with Jetti Resources are exciting because it means we can generate high margin from material that would have been waste. This project represents an opportunity to position Pinto Valley more competitively, which will create and sustain jobs, and economic benefits in a socially and environmentally responsible manner.' The engagement of Jetti and utilization of their proprietary technology was an extension of Pinto Valley's existing PV3 Optimization Study, which is focused on several low capex, high impact projects aimed at having a material increase to the net present value of the operation. The PV3 Optimization Study is scheduled for release in Q4 2020.

Contact:

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