The Whyalla Steelworks is a fully integrated steelworks and the only manufacturer of rail in Australia. Iron ore is mined in the Middleback Range to feed the steelworks, resulting in the distribution of finished steel products of over 90 different grades. It occupies a 1,000 ha site on the shore of False Bay, Spencer Gulf and is the largest employer in Whyalla, South Australia. Approximately 1.2 million tonnes of raw steel is produced in the steelworks each year, with about 65% of that transferred by rail to Arrium's Market Mills as billets for further processing. The balance of the steel is then converted to finished products at the Whyalla Rolling Mill. These products service the construction and rail transport industries. Dust emissions from the steelworks became a controversial topic in 2005 after legislation was rewritten to nullify a legal battle between OneSteel and the South Australian Environmental Protection Agency. The steelworks is open to the public for guided tours which can be booked at the Whyalla Visitors Centre. From Wikipedia
