Mineral Resources finalizes investment to boost spodumene capacity and recoveries at Western Australia’s Mt Marion site by 2028.
Mineral Resources (MinRes) has approved a $351.2m expansion of its Mt Marion lithium project in Western Australia, adding a flotation plant and underground mining. The investment, spread over FY27 and FY28, targets a 70% recovery rate and increased spodumene concentrate (SC6) output.
The project includes a $240m flotation plant, $220m for underground development, and $30m for infrastructure. At current spot prices of $2,700 per tonne, the companies expect payback in under a year. Mt Marion’s capacity will rise from its existing base, with construction set to begin in early 2027.
MinRes’ Mining Services division will handle construction and operations, aiming for commissioning in the second half of 2028. The expansion follows strong lithium demand and aims to capture fine material lost in tailings.