Aurizon Holdings (ASX:AZJ) is Australia's largest rail freight operator, transporting more than 250 million tonnes of Australian commodities each year. The company owns and operates one of the world's largest coal rail networks, linking approximately 50 mines with three major ports in Queensland. Aurizon is also a provider of rail infrastructure and services, including track access, engineering, construction, and maintenance. The company provides rail haulage and logistics services for a range of bulk commodities, including coal, iron ore, grain, and minerals. Aurizon's customers include some of Australia's largest mining companies, agricultural producers, and industrial businesses.