Aurizon Holdings Limited, through its subsidiaries, operates an integrated heavy haul freight railway operator in Australia. It transports various commodities, such as mining, agricultural, industrial, and retail products; and retail goods and groceries across small and big towns and cities, as well as coal and iron ore. The company also operates and manages the Central Queensland Coal Network that consists of 2,670 kilometers of track network; and provides various specialist services in rail design, engineering, construction, management, and maintenance, as well as offers supply chain solutions. In addition, it transports bulk freight for miners, primary producers, and the manufacturing industry. The company was formerly known as QR National Limited and changed its name to Aurizon Holdings Limited in December 2012. Aurizon Holdings Limited is based in Fortitude Valley, Australia.