Challenger Gold reported progress at the Hualilan Project, with improved metallurgical results boosting project economics.

The breakthrough allowed economic recovery of zinc at 0.4% head grades, unlocking 211.5 kt of zinc resource compared to the initial plan of 62 kt. The zinc concentrate grade rose to 55%.

Simplified flowsheet reduced reagent consumption, potentially lowering operating costs. Gold and silver recoveries also show improvement, reaching 97.5% and 93% respectively.

The next phase of test work will assess performance at different head grades and incorporate it into the pre-feasibility study.