A massive boost in production at the Onslow Iron project and a suite of external contracts have driven Mineral Resources (MinRes) subsidiary CSI Mining Services to record first-half results for the 2025–26 financial year (FY26).
The mining services contractor processed 166 million tonnes of material, pushing earnings before interest, taxes, depreciation and amortisation (EBITDA) up 29 per cent to $488 million compared to the previous corresponding period.
CSI currently operates 28 plants worldwide, bringing its total processing capacity to 167 million tonnes a year.
MinRes chief executive of mining services Mike Grey said the company has a long track record of introducing innovative processing and crushing technology to the resources sector.
“At its core, CSI provides build-own-operate crushing and screening plants and mobile crushing equipment for some of the world’s largest mining companies across commodities such as iron ore, lithium and gold,” Grey said.
“Our focus has always remained on delivering efficient solutions to crush and process ore as safely and quickly as possible, which delivers real value to our clients.”
Grey said this operational focus is a major factor behind the financial and production outcomes in the first half of FY26.
The deployment of NextGen modular crushers has been a significant driver of the recent growth. Three of these advanced units are currently operating at the Onslow Iron site in the West Pilbara, playing a critical role in ramping up operations to their nameplate capacity of 35 million tonnes per annum.
“Our NextGen crushers have performed exceptionally at Onslow Iron,” Grey said.
“The team we’ve assembled on site has played a leading role in getting the most out of our plant, thanks to their industry-leading knowledge and understanding of the way our ore moves through the three trains to produce a single fines product.”




