Mineral Resources dials back at Mt Marion and confirms 570 jobs gone since July as part of cost cuts

An under-fire Mineral Resources is holding off on an underground expansion at its Mt Marion lithium operations and gone full-steam ahead to finish a final stretch of haul road due to be done this month.

The lithium and iron ore miner’s quarterly results hit the market minutes after it announced a mammoth cash sale of its Perth Basin oil and gas assets to Gina Rinehart’s Hancock Prospecting worth up to $1.13 billion.

An upfront consideration of $804 million will be paid to MinRes as part of the deal.

And the company — also in the spotlight amid allegations over founder Chris Ellison’s tax affairs — has pulled more levers to try and find more free cash as commodity prices take a hit.

Plans for an underground expansion at its struggling Mt Marion mine have been canned for the forseeable future, and production has been scaled back as prices stay subdued.

Plans to turn the Goldfields operation — half-owned alongside China’s Ganfeng Lithium — into an open-pit and underground one had been formally in the works since April. Ore mined was down 24 per cent on the quarter to 68,000 tonnes of spodumene concentrate. Total lithium production Mt Marion, Wodgina and Bald Hill was 157,000t.

MinRes was selling a tonne of the lithium-bearing ingredient for about $US815/t during the quarter.

The extent of rampant job cuts across its business were also laid bare, with 570 roles gone since the start of FY25 as part of reductions at its head office in Osborne Park, roster changes at Mt Marion and Wodgina, and as part of the wind down of its closing Yilgarn iron ore hub.

MinRes said the changes had saved about $300m. The company maintained full-year cost and production guidance.

Meanwhile, MinRes has said the 150km haul road it’s building between the Ken’s Bore iron ore hub and the Port of Ashburton, has commenced “full operational use”.

Pressure had been on to get the road finished and ore moving before the end of October.

“The haul road has commenced full operational use by our road train fleet across the entire 150km route. The construction phase is now advancing into final completion stages which will facilitate a seamless transition to the autonomous ramp-up phase in the coming months,” MinRes said.

The road is an integral part of MinRes’ $3b Onslow Iron project in the West Pilbara and has been touted by the company as a piece of infrastructure that will unlock stranded iron ore deposits in the region.

Morgan Stanley secured a 49 per cent stake in the private road for $1.3b in June. MinRes said it received $1.1b in cash from the sale during the quarter.

It will get the remaining $200m if 35 million tonnes of iron ore — on a per annum run-rate basis — is transported across the road during any quarter before June 30, 2026.

The new Onslow iron ore mine remains on track for full ramp-up.

Shares in MinRes rose more than 16 per cent during morning trade after the Hancock gas deal was announced to $41.87. The stock is down about 40 per cent since January.