Macmahon Holdings Limited (Macmahon) is principally engaged in the provision of contract mining services. The Company has three operating segments: Surface Mining, Underground Mining and International Mining, which are aggregated into the Mining segment. The Mining segment operates in two principal geographical areas, including Australia and Overseas. The Mining segment provides a range of mining services for surface and underground operations, from mine development to materials delivery, which include a range of engineering services, including design, construction and on site services to deliver on client needs from the design phase to completion. The Company offers various services, including surface mining; underground mining, and plant, maintenance and engineering. Macmahon's Mining Services business provides a range of services, including drilling, shotcreting, raise drilling, shaft sinking and engineering design to various projects.