Deterra Royalties was spun out from Iluka Resources in October 2020, with Iluka retaining a 20% interest. Its only material income generating asset is a royalty covering iron ore produced by BHP from the Mining Area C royalty area in Western Australia. This includes the North Flank mine, producing around 60 million metric tons of iron ore a year, and the South Flank mine, expected to add 85 million metric tons after producing first ore in 2021. It also covers most of the Tandanya and Mudlark deposits, which BHP intends to develop in the longer term as part of its plan to operate the MAC production hub for at least 50 years. Consistent with its strategy to grow into a diversified royalty firm, its Trident Royalties purchase is likely to provide modest diversification from iron ore.