Donald James Argent

Sedgman Ltd. provides mineral processing and associated infrastructure solutions to the global resources industry. It provides multi-disciplinary engineering, project delivery and operations services with across coal, iron ore, copper, gold, lead and other base metals, as well as infrastructure. The firm operates through business two segments: Projects and Operations. The Projects segment engages in designing, constructing and commissioning of coal handling and preparation plants, minerals processing plants and other related equipment. The Operations segment engages in operating and ownership of coal handling and preparation plants, and ore crushing and screening plants. The company was founded by John Sedgman in 1979 and is headquartered in Brisbane, Australia.

Thiess Pty Ltd. provides engineering and related services in Australia and Asia. Its services include mining, civil engineering, processing, building, environmental and utilities services, and facilities operations and maintenance. The company was founded in 1934 and is headquartered in South Bank, Australia.