Macmahon Holdings Limited is a contract mining and construction company. The Company provides civil construction and contract mining services. It operates in three segments: mining, construction and joint ventures. Its mining segment provides mine to mill capability for both surface and underground operations. It is engaged in mining a variety of minerals and base metals including coal, copper, gold, diamonds, iron ore, nickel and limestone. Its construction segment provides government and resource sector clients a range of construction capabilities that incorporates roads and bridges, rail, water and environment, marine and resource infrastructure. Its mining and construction segments operate in Australia and Overseas. During the fiscal year ended June 30, 2011 (fiscal 2011), stage-two of Tiger Brennan Drive was completed, and the RGP5 Rail North contract was completed. In fiscal 2011, it completed the Nepean River Weirs Environmental Flow Release and Fish Passages Project.