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Marimaca Copper Identifies New Oxide Target at Roble with High Grade Rock Chip Samples

VANCOUVER, British Columbia, April 22, 2021 , which it plans to drill test over the coming months.

“The Roble Target has delivered several surprises, most notable is the extent of outcropping copper oxide mineralization, which now covers an area of over 1,500m by nearly 500m.

“During our investigation work, we found historical reports suggesting that some very shallow scout drilling had been completed, with one hole intersecting approximately 14m at 0.5% CuT of oxide mineralization from surface.

The Roble Target extends along 3,000m of strike north to south, coincident with the magnetic anomaly previously identified and the Roble Fault System.

Notwithstanding that the area is extensively covered by sulphate regolith and post mineralization gravels, the 50m x 50m grid soil geochemical sampling program delineated a large-scale copper anomaly in this area.

Rock chip sampling of the outcropping oxide mineralization highlighted numerous areas with grades exceeding 0.1% CuT distributed across the full 1,500m of length of the geochemical anomaly, with the most prospective area focused around the Nepal sector , which had numerous higher grade rock chip samples over an area of approximately 500m by 500m.

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 -200#.

Such factors include, without limitation: risks related to share price and market conditions, 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.

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