PPK Group Ltd. engages in the manufacture of load haul dump machines for the underground coal mining industry. It operates through the Investing and Mining Equipment segments. The Investing segment includes the management of debt and equity investments. The Mining Equipment segment comprises of design, manufacture, service, support, and distribution of CoalTram; and other underground coal mining vehicles, alternators, electrical equipment, drilling and bolting equipment and mining consumables, and hire of underground coal mining equipment. The company was founded by Glenn Robert Molloy in 1979 and is headquartered in Brisbane, Australia.