Cassius Mining Limited is an Australia-based resource exploration and mining company engaged primarily in the exploration and development of mineral properties in Africa and Australia. The company operates through two main segments: Industrial Minerals Development and Mining Exploration. Its core assets include the Soalara Limestone Project in southwest Madagascar, where it holds 100% interest through its subsidiary Soalara Calcaire SARL, and the Chenene Lithium Project in Tanzania. The Soalara project is a significant limestone asset with an estimated 340 million tonnes of high purity limestone (97% CaCO3) compliant with JORC standards, targeting markets that require cement, concrete, aggregate products, and other industrial minerals. In the mining exploration segment, Cassius Mining focuses on gold and lithium exploration within its Tanzanian and Ghanaian licenses.
Founded in 2005 and headquartered in Forest Lodge, New South Wales, Australia, Cassius Mining Limited has undergone a notable transformation since its prior identification as Gulf Industrials Limited until a name change in December 2017. The company serves industrial mineral and mining markets primarily across Australia and Africa. Its projects in Africa include the Bolgatanga Gold Project in Ghana and the Chenene Lithium Project in Tanzania.
Major recent company developments include the filing of a $277 million claim against the Ghanaian government in late 2024 over alleged breaches related to prospecting license non-renewal for its gold project in the Talensi district, which has caused the company to seek arbitration for loss of opportunity and profits from the project. Additionally, Cassius Mining acquired four contiguous prospecting licenses in Central Tanzania in early 2025 for $0.38 million to expand its lithium exploration footprint. The company also entered into a memorandum of understanding with the Segia Gulf Group to accelerate critical minerals exploration in Saudi Arabia. Furthermore, Cassius Mining continues to advance the Soalara limestone project amid improving political stability in Madagascar and seeks to leverage its high-purity limestone resource for cement and concrete raw materials markets. Operationally, Cassius has raised funds through placements, including a roughly $530,000 capital raise via new share issuance in September 2025 to support its ongoing project development programs.
Cassius Mining Limited targets industrial mineral product customers in construction and cement manufacturing as well as precious metals and battery metals markets through its gold and lithium assets. Its operations and strategic growth activities focus on Africa, Madagascar, Australia, and expansion efforts into the Middle East critical minerals sector.
This professional profile reflects Cassius Mining Limited as a diversified mineral resource company with a strong emphasis on high-quality limestone production and exploratory mining of gold and lithium, complemented by recent strategic acquisitions, legal positioning, and partnerships supporting its expansion in key resource sectors and geographies.