Mount Gibson Iron Limited operates as an Australian mining enterprise, actively involved in the extraction, processing, and global distribution of mineral resources. The company has historically been a significant producer of high-grade hematite iron ore, predominantly from its Koolan Island operation in Western Australia's Kimberley region. However, following a substantial rockfall in October 2025, mining activities at Koolan Island have been suspended indefinitely, with remaining ore processed from existing stockpiles ahead of its planned closure. Furthermore, Mount Gibson divested its Mid-West iron ore and infrastructure assets, including interests in the Extension Hill and Shine deposits, in mid-2023. In a strategic pivot, the company acquired a 50% stake in the Central Tanami Gold Project in the Northern Territory in July 2025, marking its entry into precious metals. This shift is part of a broader diversification strategy, with a proposed change of the company's name to MGX Resources. Mount Gibson Iron Limited, established in 1938, maintains its headquarters in West Perth, Australia.