In line with BHP’s technology roadmap, our exploration crew have utilised our semi-autonomous hands-free drilling equipment to increase safety and efficiency on site. We continue to provide consistent results via deep navigational diamond and RC drilling – increasing accuracy and cost savings.


Located in Leinster, Western Australia the Agnew mine is made up of both Waroonga and New Holland underground operations. Barminco provides diamond drilling to both sites and, underground production mining and underground development services at Waroonga operations. Approximately 190 people work across both sites, with production rates of approximately 0.5Mt per year.