MMG Q3 2026 Zinc Production Down 5% YoY, Rosebery Mine Output Slumps
MMG released its third-quarter 2026 production report on October 14. Total zinc production for the quarter reached 55.9kt, down 5% YoY, mainly due to lower output at the Rosebery mine. Dugald River produced 47.8kt of zinc in zinc concentrate during the quarter, broadly unchanged YoY. The mine remains on track to achieve the upper end of its full-year zinc production guidance of 170–180kt. Rosebery produced 8.13kt of zinc during the quarter, down 23% YoY, primarily due to reduced ore supply following seismic events in the X-South orebody area since July. As a result, the company lowered its 2026 zinc production guidance for the mine to 32–37kt from the previous 45–55kt.