Joseph Ronald Sweet

MACA Ltd. engages in the provision of mining services and civil construction services to the mining industry. It also provides loading, hauling, drilling and blasting, crushing and screening, and civil infrastructure services to both public and private industries. It operates through the following segments: Mining, Civil and Infrastructure, and Interquip. The company was founded in November 2002 and is headquartered in Welshpool, Australia.

BGC (Australia) Pty Ltd. engages in the provision of residential and commercial construction and engineering services. The firm offers residential and commercial building, building and construction products manufacturing, contract mining, civil engineering construction and maintenance, quarrying, road transport, property ownership and management, and insurance services. The company was founded by Len Buckeridge in 1980 and is headquartered in Perth, Australia.

BGC Contracting Pty Ltd. engages in the provision of mining and civil construction services. It also offers mineral processing, road train haulage, and maintenance services. The company was founded in 1970 and is headquartered in Hazelmere, Australia.