Arrium Limited is an international diversified mining and materials company with three business segments: Arrium Mining, Arrium Mining Consumables and Arrium Steel.

Arrium Mining includes the company's export iron ore business which achieved sales of 12.5 million tonnes of hematite ore for the 2014 financial year. Arrium has mining operations at the Middleback Ranges and Southern Iron region in South Australia, as well as a wholly-owned port at Whyalla, South Australia with a current capacity of approximately 13 million tonnes per annum. In addition to the export iron ore business, Arrium Mining also supplies iron ore to the company's integrated steelworks at Whyalla.