Unlock stock picks and a broker-level newsfeed that powers Wall Street. Upgrade Now
Aftermath Silver's Berenguela Metallurgical Testwork Yields High Silver Recoveries

In This Article:

Vancouver, British Columbia--(Newsfile Corp. - October 16, 2024) - Aftermath Silver Ltd. (TSXV: AAG) (OTCQX: AAGFF) (the "Company" or "Aftermath Silver") is pleased to provide an update on recent metallurgical studies at the Company's Berenguela Silver-Copper-Manganese project in southern Peru ("Berenguela").

The results show a recovery of 95% silver and 89% silver respectively for the 2 composites tested. The standard leach process shows no interference from manganese or other metals. Cyanide consumption is less than 1 kg per oz of silver recovered, indicating this is not a significant cost or technical issue. Test work to complete the flowsheet details on Aftermath's Berenguela project is continuing at Kappes Cassiday and Associates' (KCA) Reno facility. Recent work has focused on silver extraction from two composite samples RD2MINA (KCA test 100164) and RD4LOWA (KCA test 100166). Work is continuing on additional composite samples of mineralization.

Michael Williams, Aftermath's Executive Chairman commented: "We are extremely pleased with the metallurgical results to date, as we have demonstrated that we can potentially produce a battery grade manganese sulphate product and the recoveries of the silver and manganese to date are high. As we move into the next phase of our metallurgical test work, we look forward to scaling up the work. The next stage of our metallurgical test work is advancing and includes preliminary process and sizing studies for plant design purposes."

The basic flowsheet involves acid leaching of the mineralization using sulfuric and sulfurous acids to dissolve Cu, Mn, Fe, and Zn, then purifying this solution with the objective of producing silver, copper and High Purity Manganese Sulfate Monohydrate (HPMSM). Flowsheet steps to accomplish this have been completed, and HPMSM has been made from three ore composites which represent over 65% of the resource. The acid leach processes dissolve less than 1% of the silver in the mineralization hence the tailings from the acid leach process will be sent to a standard cyanide leach plant.

The current test program builds on metallurgical work carried out by KCA in 2010. Details of the historic test flowsheets and results are summarized in Section 13 of the Aftermath Technical Report "Berenguela Mineral Resource Estimate NI 43-101 Aftermath Silver Ltd. Province of Lampa, Department of Puno, Peru", dated March 30, 2023, prepared by AMC Consultants available here or on Aftermath's website at the link below: