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As of May 2025, the project employed over 1,800 people. Accommodation is provided at the 500-room Mungala Resort at Ken's Bore, offering rooms three times the size of traditional fly-in, fly-out accommodation.

The Onslow Iron project is an operating open-pit iron ore mine located approximately 150 kilometres east of Onslow in the West Pilbara region of Western Australia. Operated by Mineral Resources (MinRes) on behalf of the Red Hill Iron Joint Venture, which includes Baowu, AMCI, and POSCO, the project unlocks previously stranded iron ore deposits such as Ken's Bore, Upper Cane, and Cardo Bore East. MinRes holds a 57% ownership share and 100% of the project's infrastructure.

First ore was shipped in May 2024. The project was expected to reach its nameplate capacity of 35 million tonnes per annum by June 2025. For the 2025 fiscal year, 14 million tonnes were shipped. In the first half of the 2025-2026 financial year, a yearly production rate of 35 million tonnes was maintained.

The project employs an innovative dust-free pit-to-ship supply chain. Mining involves conventional drill and blast, followed by crushing in three NextGen modular plants. Ore is then transported 150 kilometres by autonomous road trains from Ken's Bore to the Port of Ashburton. At the port, ore is stored in a 220,000-tonne capacity shed before being loaded onto shallow-draft transhippers, which transport it 40 kilometres offshore to larger ocean-going vessels.

The project utilises three in-house designed NextGen modular crushing plants. Ore is transported by a fleet of 120 autonomous 320-tonne jumbo road trains. A fleet of 20,000-tonne capacity shallow-draft transhippers move ore 40 kilometres offshore to larger ocean-going vessels.

In March 2025, Mineral Resources increased by 89% to 744 million tonnes at 56.3% Fe, and Ore Reserves increased by 73% to 359 million tonnes at 57.5% Fe. The mine plan includes developing Cardo Bore East and Upper Cane deposits, connecting them to the Ken's Bore crushing area. Wet processing is planned from the 2028-2029 financial year. The transhipping fleet is expanding, with a fifth vessel arriving in May 2025 and a sixth and seventh expected in 2026.

approximately 1,000 employees

Yilgarn Operations, also referred to as the Yilgarn Hub, is an iron ore project operated by Mineral Resources Limited (MRL) through its subsidiary Yilgarn Iron Pty Ltd. The operations are located in the Yilgarn region of Western Australia, Australia.

Production overview - 2024: iron ore 7.6 Mt; 2023: iron ore 7.7 Mt.

conventional dry crushing and screening to produce lump and fines products, which are shipped directly without beneficiation.

Hitachi EX1900, EX2600, and EX3600 excavators with matching haul trucks.

Mineral Resources acquired the Koolyanobbing, Windarling, and Deception assets from Cliffs Asia Pacific Iron Ore in August 2018. The company acquired the Parker Range project in 2019.

The South West Creek Project is a pit-to-port iron ore infrastructure solution in the Pilbara region of Western Australia, operated by Mineral Resources Limited (MinRes). The project's primary focus is the development of a new iron ore export facility at Stanley Point Berth 3 in South West Creek, within the Port of Port Hedland. This development is part of a Port and Rail agreement between MinRes, Hancock Prospecting Pty Limited, and Roy Hill Holdings Pty Limited. Under this agreement, the parties will jointly investigate and develop the new facility, with Roy Hill providing rail haulage and port services. The joint venture between MinRes and Hancock was granted a port capacity allocation for the development of the berth by the Western Australian Government. The project is intended to unlock stranded iron ore assets in the Pilbara, such as the Marillana and Ophthalmia projects, which form the basis of the South West Creek Hub. Mineral Resources has the right to earn a 50% interest in these projects from Brockman Mining Limited. The South West Creek Project could provide an additional 20 million tonnes of annual export capacity for Mineral Resources. The development is subject to further approvals, necessary agreements, and a positive final investment decision from the joint venture partners. As of early 2022, the partners were progressing with a feasibility study and the finalisation of approvals.

The project is expected to provide an additional 20 million tonnes of annual export capacity for Mineral Resources.

Investigating the development of a new iron ore export facility at the Port of Port Hedland in partnership with Hancock Prospecting and Roy Hill.

Approximately 1,000 employees were impacted by the closure under Mineral Resources. Mineral Resources aimed to redeploy as many as possible, with almost 800 vacancies available across its other operations. Over 780 employees were successfully redeployed to other projects.

Mineral Resources announced the closure of the Yilgarn Hub in June 2024 due to financial non-viability, ceasing iron ore shipments by December 2024. Operations transitioned to care and maintenance in early 2025, and the mine was sold to Yilgarn Iron Investments Pty Ltd (YII) on 30 June 2025.

Production overview - 2024: iron ore 7.6 Mt; 2022: iron ore 8.7 Mt.

In the 2023 financial year, production at the Yilgarn Hub was converted to process both lump and fines.

The assets included five digger fleets, 28 trucks, and 25 pieces of ancillary gear, which were to be redeployed across Mineral Resources' other businesses prior to the sale.

Prior to the closure announcement, Mineral Resources was exploring the transformation of the Yilgarn Hub from a hematite to a magnetite operation. Exploration drilling and environmental studies for hematite and magnetite targets were planned to continue into the 2025 calendar year.

The South West Creek Project is an iron ore export infrastructure development located at the Port of Port Hedland in Western Australia. It is a joint venture between Mineral Resources Limited and Hancock Prospecting. The project is centered around the development of a new export facility at Stanley Point Berth 3 (SP3) in South West Creek. As the project is in the feasibility stage, a final investment decision has not yet been made.

Mineral Resources Limited aims to ship at least 20 million tonnes of iron ore per annum through this new facility.

The infrastructure for the new berth is planned to include a wharf with prefabricated jacket structures, modular deck units, and a new shiploader. There will also be a new "piggy-back" conveyor system built on top of an existing overland conveyor.

The Onslow Iron project employs over 1,800 people, who are accommodated at the 500-room Mungala Resort.

Ken's Bore is an operating open pit channel iron deposit mine in the West Pilbara region of Western Australia, Australia. It is a central component of the Onslow Iron project, operated by Mineral Resources (MinRes) on behalf of the Red Hill Iron Ore Joint Venture (RHIOJV), which includes MinRes, Baowu, AMCI, and POSCO. The project has a mine life of over 30 years and shipped its first ore in May 2024.

The Onslow Iron project is ramping up to a nameplate capacity of 35 million tonnes per annum. The first ore was shipped in May 2024.

Ore from Ken's Bore and other satellite deposits is processed at a central facility at Ken's Bore. The process involves NextGen modular crushing plants, mine stackers, a reclaimer, and a truck load-out facility. The project also features an industry-first automated laboratory. Processed ore is transported by autonomous 320-tonne jumbo road trains on a dedicated 150 km private haul road to the Port of Ashburton for export via transhippers.

The mine uses CAT 140M graders and CAT 740 and 745 water trucks. Processing involves NextGen modular crushing plants, mine stackers, a reclaimer, and a truck load-out facility.

Ken's Bore is the central hub for the Onslow Iron Project, which is unlocking previously stranded iron ore deposits in the West Pilbara region. Ore from the recently developed Upper Cane and Cardo Bore East deposits is hauled to the Ken's Bore facilities to be blended. The project has an expected mine life of more than 30 years. An updated Mineral Resources statement for the entire Onslow Iron Project as of 31 March 2025 reported 744Mt at 56.3% Fe. An updated Ore Reserve for the project was 359Mt at 57.5% Fe.

The Marillana Project is a 50:50 joint venture between Brockman Mining Limited and Mineral Resources (MinRes) in the Pilbara region of Western Australia. MinRes manages the joint venture and will oversee the mine's development and operation. The project is approximately 100 kilometres north-west of Newman and is currently in the development and feasibility stage, pending a final investment decision. This decision is contingent on securing essential port and rail infrastructure at Port Hedland, which is being progressed by a joint venture between MinRes and Hancock Prospecting.

Initial production is planned at a rate of 20 million tonnes per annum, with the potential to expand to 30 Mtpa. The project has a total Mineral Resource of 1.51 billion tonnes and Probable Ore Reserves of 1.01 billion tonnes as of May 2018. The estimated mine life is over 20 years.

The Marillana Project is an open-pit mine targeting hematite detrital and channel iron deposit mineralisation. Processing will involve simple beneficiation to upgrade lower-grade detrital ore. Metallurgical testing indicates that ore with an in-situ grade of 42.2% iron can be processed into a high-quality iron ore fines product with a grade over 60% Fe, a sinter feed product of 60.5% to 61.5% Fe, and a direct-ship-ore product grading 55.5% Fe. Mineral Resources will build, own, and operate the necessary crushing and beneficiation plants.

Mineral Resources will build, own, and operate the necessary crushing and beneficiation plants.

Initial production is planned at a rate of 20 million tonnes per annum, with the potential to expand to 30 Mtpa.

A critical pit-to-port infrastructure solution in Western Australia, designed to facilitate a significant expansion of iron ore exports from the Pilbara region, centered on the development of a new export facility at Stanley Point Berth 3 in South West Creek, Port Hedland.

Expected to enable the shipment of an additional 20 million tonnes of iron ore per annum, with an expanded ambition for the hub to 25 million tonnes per year. The two proposed terminals would have a total capacity of 50 million tonnes per year.

Expanded ambition for the South West Creek iron ore mining hub, increasing the target from 20 million to 25 million tonnes per year.

approximately 1,000 employees

The Yilgarn Hub, a collection of iron ore mines in Western Australia, was operated by Mineral Resources Limited (MinRes) for 14 years, starting in 2011. MinRes ceased iron ore shipments by 31 December 2024, transitioning operations into care and maintenance in early 2025. On 30 June 2025, MinRes completed the sale of the Yilgarn Hub to Yilgarn Iron Investments Pty Ltd (YII). YII plans to restart operations, with haulage expected to recommence in 2025 and mining in late 2025, focusing on the Koolyanobbing ore processing facility.

Production overview - 2024: iron ore 7.6 Mt.

conventional dry crushing and screening to produce lump and fines products at the Koolyanobbing processing plant

five digger fleets, which included 28 trucks and 25 pieces of ancillary equipment

Cardo Bore East is an active open-pit iron ore mine operated by Mineral Resources Limited, located in the West Pilbara region of Western Australia. It is a satellite deposit of the larger Onslow Iron Project, serving as a hub for mining activities alongside the Upper Cane deposit. Ore is transported via a dedicated intra-mine haul road to central crushing and processing facilities at the Ken's Bore mine.

Ore is transported to the Ken's Bore facility for crushing and processing, operated by CSI Mining Services. Processed ore is then blended to meet customer grade requirements and transported via a 150-kilometre private haul road to the Port of Ashburton for transhipment.

drill and blast, load and haul operations, fleet of 120 fully autonomous road trains (330 tonnes capacity each)

satellite deposit of the larger Onslow Iron Project; development completed in 2025

The total workforce for Mineral Resources' Pilbara Hub, which includes Lamb Creek, Iron Valley, and formerly Wonmunna, is over 560 people. Staff from the Wonmunna operation were expected to transition to Lamb Creek.

The Lamb Creek iron ore project, owned and operated by Mineral Resources Limited, is an open pit mine located in the East Pilbara region of Western Australia, approximately 130 kilometres northwest of Newman. Development commenced in December 2025, with the first ore shipment in March 2026. The mine is currently operating and was developed to replace the nearby Wonmunna mine.

The mine has a planned production capacity of 7.5 million tonnes per annum. For the 2026 financial year, the production guidance for the Pilbara Hub, which includes Lamb Creek, is between 9 and 10 million tonnes. The development of Lamb Creek is intended to extend the production profile of the Pilbara Hub by more than five years.

Ore from Lamb Creek is processed through a multi-stage crushing and screening plant. The processed ore is then blended with material from Mineral Resources' Iron Valley mine, located 50 kilometres away. The blended product is transported via a 16 to 17-kilometre private haul road to the Great Northern Highway, and then a further 320 kilometres by road trains to the Utah Point berth at Port Hedland for export.

The mining fleet includes Hitachi EX3600 and Hitachi EX2600 excavators and 180-tonne Hitachi EH3500 (or equivalent) dump trucks. The site infrastructure includes a 16-kilometre haul road connecting to the existing Iron Valley infrastructure.

The development of Lamb Creek is intended to extend the production profile of Mineral Resources' Pilbara Hub. The project includes a 16 km haul road and a new crushing plant. The development coincides with the winding down of the Wonmunna iron ore operation.

The Yilgarn Hub, previously operated by Mineral Resources (MinRes), comprises several iron ore mines including Koolyanobbing, Parker Range, and Carina. In June 2024, MinRes announced it would cease shipments by the end of the calendar year as the operations were no longer financially viable. The hub was subsequently ramped down and placed into care and maintenance in early 2025. Approximately 1,000 employees were impacted by the closure, with around 800 redeployed to other MinRes projects. On 30 June 2025, Mineral Resources completed the sale of the Yilgarn Hub to a new owner, Yilgarn Iron Investments Pty Ltd (YII). Mineral Resources retained the rights for gold and lithium on the tenements.

Production overview - 2024: iron ore 7.6 Mt.

Operations at Wonmunna are supported by a workforce of more than 330 people. The total workforce for the entire Pilbara Hub is over 560 people. All employees from Wonmunna will be transferred to the Lamb Creek project.

The Wonmunna mine is an operating open-pit iron ore mine in the Pilbara region of Western Australia, located approximately 80 kilometres north-west of Newman. It is owned and operated by Mineral Resources Limited and forms part of their larger Pilbara Hub, which also includes the Iron Valley and Lamb Creek mine sites. First ore was achieved in March 2021.

First ore from Wonmunna was achieved in March 2021, and the mine has since exported more than 26 million tonnes of ore. The Pilbara Hub had shipments of 9.7 million wet metric tonnes in the 2025 financial year and has a production capacity of 10 million tonnes per annum. Production guidance for the 2026 financial year is between 9 and 10 million tonnes.

Ore from Wonmunna is direct-shipping and processed on-site through a modular crushing and screening facility to a product size of minus 8mm. This product contributes to Mineral Resources' Utah Point Hub iron ore blend, which is exported via Port Hedland.

The mining equipment used across the Pilbara Hub includes Hitachi EX3600 and EX2600 excavators, and 180-tonne Hitachi EH3500 dump trucks.

Mineral Resources is winding down operations at the Wonmunna mine as it transitions to the new Lamb Creek iron ore deposit. Lamb Creek achieved first ore in the third quarter of FY26 and is intended to extend the Pilbara Hub's production profile by more than five years.

Approximately 1,000 employees impacted by Yilgarn Hub ramp-down.

The Parker Range mine is an iron ore project located in the Yilgarn region of Western Australia, approximately 15 kilometres south-east of Marvel Loch and 52 kilometres south of Southern Cross. It is a conventional open-pit operation, with mineralisation hosted in a banded iron formation (BIF) at the Mt Caudan deposit.

Specific production outputs for Parker Range under Mineral Resources' operation are not detailed separately in public reports, as the company reported consolidated figures for the Yilgarn Hub.

Ore from Parker Range was intended to be transported to the Koolyanobbing operations for processing.

99-room camp; Yilgarn Hub fleet included five digger fleets, 28 trucks, and 25 pieces of ancillary gear.

Acquisition by MRL to expand iron ore presence in Yilgarn region. Ore intended to be transported via a new private haul road to Koolyanobbing for processing.

The Windarling mine is an open-cut iron ore mine in the Yilgarn Shire of Western Australia, 135km north of Southern Cross. Acquired by Mineral Resources Limited in 2018, it was part of the Yilgarn Hub operations. Operations ceased by end of 2024, transitioning to care and maintenance from early 2025, and the mine was sold in June 2025.

five digger fleets, including 28 trucks and 25 pieces of ancillary gear

Mineral Resources Limited acquired the Windarling mine as part of its acquisition of the Koolyanobbing iron ore operation from Cleveland-Cliffs Inc. in 2018. Recommenced operations in August 2018.