RPX Gold Inc. has yielded average gold extractions of 93.4% from open-pit material during preliminary metallurgical variability testing at the Wawa Gold Project in Ontario, exceeding the recovery assumptions set out in its earlier economic study.

The testing program, conducted by SGS Canada Inc. at its facility in Lakefield, Ontario, evaluated 26 of 71 planned composite samples using cyanidation bottle roll procedures. The samples represent mineralized zones across the Jubilee Shear and Minto Mine deposits, which support a phased development strategy prioritizing open-pit operations ahead of underground mining to generate early cash flow.

For open-pit samples within potential starter pit areas, cyanidation testing returned an average gold recovery of 93.4% at a calculated head grade of 4.42 grams per tonne gold. That result compares with the 88.0% gold recovery assumed in the project's preliminary economic assessment published earlier in 2026. Samples representing the underground mine plan averaged 88.3% gold recovery at an average calculated head grade of 8.24 grams per tonne gold.

"The latest preliminary metallurgical results are very encouraging and provide further support for the development assumptions underlying the Wawa Gold Project. Importantly, the samples representing areas with starter pit potential returned an average gold recovery of 93.4%, compared to 88.0% gold recovery assumed in the 2026 PEA. Samples representing the underground mine plan averaged 88.3%, demonstrating strong recoveries across a range of grades and mineralogical characteristics."

"These results further validate the use of conventional cyanidation recovery for Wawa gold mineralization and reinforce our confidence in the Project’s potential compatibility with regional toll-milling facilities. With testing on the remaining samples continuing, the expanded metallurgical program will provide important data for optimizing recovery assumptions as we advance the Wawa Gold Project toward the PFS targeted for completion by mid-2027."

— Michael Michaud, President and CEO

The metallurgical work forms part of ongoing technical preparations for a prefeasibility study targeted for completion by mid-2027. Testing on the remaining 45 samples is currently underway. In parallel, RPX Gold is advancing a fully-funded 20,000-metre drill program using two active drill rigs to support resource conversion and grade validation across the property.

Read the full announcement: RPX Gold Announces Positive Metallurgical Test Results