For further information email info@mitchellservices.com.au or call +61 (0) 7 3722 7222 www.mitchellservices.com.au Client: BHP Service: Underground diamond drilling Location: Olympic Dam, South Australia Project Challenges: • 60 new Mitchell employees in a new state • Ground conditions • Mine productivity and access • Faults and shear zones • Ramp up from 1 to 7 rigs • Rig commissioning and equipment onboarding Approach and Equipment Used: • 1 X Boart Longyear MDR700 Manitou mounted drill rig • 6 X LMA90 drill rigs • Auto drill technology • Diamond rod handlers • Integrate carrier Client Outcomes: • Minimal contractor related standby • Record metres drilled in a single month • Material cost per metre decrease • Deepest underground hole ever drilled at site • Diamond rod handling BHP –

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