MINERAL Resources has resumed haulage operations on the Onslow Iron haul road – and has also put transhipper MinRes Rosily into action carrying iron ore from the Port of Ashburton to ocean-going vessels 40 kilometres out to sea.
MinRes advised the Australian Stock Exchange that haulage operations resumed on the Onslow Iron dedicated haul road on the evening of 21 March following a sixth road train incident on the haul road last week.
It had been closed since 18 March.
The resumption followed what MinRes described as “constructive discussions” with WorkSafe WA regarding controls and risk mitigation on the 150-kilometre road which cost $2.6 billion to build.
The previously announced, $230 million works program to upgrade the haul road continues on schedule for completion in Q1 FY26 following damage from severe weather.
And also providing a boost to the operation’s iron ore capacity is the MinRes Rosily, which began operations at the Port of Ashburton on 22 March, increasing Onslow Iron’s transhipping capacity to 28 million tonnes per annum.
The MinRes Rosily is the fourth transhipper in Mineral Resources’ fleet, supporting the Onslow Iron project. It arrived in Exmouth in February 2025 before being commissioned at the Port of Ashburton.
This transhipper fleet transports iron ore from the port to ocean-going vessels anchored 40 km offshore. Each transhipper has a capacity of 20,000 tonnes and features a shallow draft to minimize environmental impact, eliminating the need for a deep-water port and allowing dust-free transport of iron ore. A fifth transhipper is expected to join the fleet later this year.
