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Iron Ore

Successful blast at new Onslow Iron deposit

Mineral Resources’ (MinRes) Onslow Iron project has marked a new milestone following a successful first blast at the Cardo Bore East deposit in the West Pilbara.

Published on 10 April 2025

Part of Onslow Iron’s Stage 1 mining activities, Cardo Bore East is located around 12km south of the Ken’s Bore mine site and will support the project’s current ramp-up to 35 million tonnes per annum.

A targeted drilling program and first blast were safely completed in March by the Onslow Iron drill and blast team, with further works now under way to prepare the site for further mining and haulage activity.

Once operational, Cardo Bore East is set to deliver another high-grade iron ore producing deposit linked to linked to the Ken’s Bore crushing and processing facility by a dedicated private haul road currently under construction by MinRes wholly-owned subsidiary, CSI Mining Services.

MinRes Executive General Manager Onslow Iron Mike Tonkin said a successful first blast at Cardo Bore East was another positive step forward for the project.

“This is the latest important milestone in the development of the Onslow Iron project,” Mike said.

“Alongside our current mining activities at Ken’s Bore, Cardo Bore East will help support the project’s ramp-up.”

“Congratulations to everyone involved in achieving this milestone safely and we look forward to progressing operations at the deposit.”

First blast at the Cardo Bore East deposit

Onslow Iron is one of the most innovative iron ore projects in Australia, with MinRes having developed, constructed and now managing pit-to-ship mining and transport infrastructure unlocking stranded iron ore deposits in the West Pilbara that would otherwise remain undeveloped.

In May 2024, the project delivered first ore on ship ahead of schedule and continues to steadily increase production volumes towards nameplate capacity.

Learn more about the Onslow Iron project.

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