PPX Mining Corp. announced the results of test work carried out by BaseMet Laboratories, Kamloops, BC, Canada; carried out on the drill core obtained from drill hole CA-24-07, previously reported. As indicated on March 07, 2024, two intercepts were reported, one of an oxidized breccia with grades of 12.05 g/t gold and 300.9 g/t silver, over the 5.25 meters of drill intercept; and a second, of a sulfated vein with grades of 10.3 g/t gold, 1670 g/t silver and 4% copper, over 9.2 meters of drill intercept.

The oxidized breccia was tested using a carbon in leach process, while the sulfated sample was tested using flotation. The oxidized breccia was leached for 48 hours, recovering 92.2 % of the gold and 87.5% of the silver, with a cyanide and lime consumption of 1.6 and 3.9 kg/t, respectively. These results are similar to, but somewhat higher, than the ones obtained previously with the breccia samples.

The calculated grade of the material leached was 13.4 g/t, similar to the reported from assaying the drill core. The sulfated vein material was treated using froth flotation, using potassium amyl xanthate as collector and MIBC as frother, the same reagents used in previous test work and those that will be used in the planned processing plant. Recovery of gold and silver to concentrate were excellent, achieving 97.1% and 94.8% respectively, with 96.1% of the copper reporting to the concentrate which had grades of 22.2 g/t gold, 3558 g/t silver and 7.8% copper.

The calculated grades of the feed to flotation was again similar to the assayed grade of the drill core.