Source: Marimaca Mining Corp.
  • Marimaca Copper (MARI) announced results of the phase 5 metallurgical testing program for its flagship Marimaca Oxide Copper Project in northern Chile
  • Results significantly improve the resolution of Marimaca’s geo-metallurgical dataset
  • Testing also confirms very low levels of carbonates (<1 per cent) and nitrates (<0.03 per cent) in general within the project
  • Results demonstrate potential upside to recoveries when in industrial-scale operation
  • Marimaca Copper Corp.  (MARI) is up 0.56 per cent this morning, trading at C$3.62 a share

Marimaca Copper (MARI) announced the phase 5 metallurgical testing program results for its Marimaca Oxide Copper Project in northern Chile.

The phase 5 program represents the most comprehensive metallurgical study completed to date for the MOD. It is the final phase expected before the planned commencement of the Definitive Feasibility Study.

The program consisted of full-scale column testing, mini-column testing, container-leach testing, sulfation tests, acid sensitivity testing, Iso-pH testing, and head characterization for heap leach (“HL”) and run-of-mine (“ROM”) samples.

These results significantly improve the resolution of Marimaca’s geo-metallurgical dataset and demonstrate potential upside to recoveries when in industrial-scale operation.

Testing also confirms very low levels of carbonates (<1 per cent) and nitrates (<0.03per cent) in general within the project.

Hailing this as a critical de-risking milestone, Hayden Locke, President, and CEO of Marimaca Copper, commented that the Phase 5 Metallurgical Program completes the acquisition of an incredibly comprehensive metallurgical dataset for the company.

“Similar to the trends identified in previous phases, copper recoveries continue to demonstrate upside beyond those projected by acid solubility and Leaching Potential given the longer leaching cycle of the black oxide component of copper oxide mineralization at Marimaca. This provides opportunities with respect to recoveries in industrial-scale operations beyond the positive results demonstrated in this phase of testing.”

Marimaca Copper Corp.  (MARI) is up 0.56 per cent this morning, trading at C$3.62 a share.

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