Delta Lithium Limited is an Australian exploration and development company primarily engaged in the exploration and development of lithium and gold resources in Western Australia. The company’s core products and services focus on lithium-bearing pegmatite deposits and gold mining, with key projects including the Mt Ida lithium-gold project, which holds a JORC-compliant resource of 36.5 million tonnes at 1.1% lithium oxide (Li2O) and a gold resource of 10.3 million tonnes at 3.33 g/t gold for 1.1 million ounces, and the Yinnetharra lithium project covering over 3,100 square kilometers in the Gascoyne region. Delta Lithium provides lithium concentrate for battery technology and electric vehicle markets and gold extraction services. Founded in 2003 and headquartered in Subiaco, Western Australia, the company was formerly known as Red Dirt Metals Limited until its name change in April 2023.
Recent major company changes include the successful demerger of its Mt Ida Gold Project into a separate ASX-listed entity, Ballard Mining Limited, completed in mid-2025, allowing Delta Lithium to focus on its lithium assets while retaining exposure to gold through equity in Ballard Mining. The company also expanded its landholding significantly at the Yinnetharra Lithium Project through farm-in agreements and acquisitions of Mortimer Hills and Aston projects, increasing its strategic presence in the Upper Gascoyne lithium province. Delta Lithium reported a 71% increase in Indicated lithium resources at Yinnetharra and introduced a maiden tantalum resource estimate. Furthermore, it monetized the Eureka Gold Project and maintained a strong balance sheet with over A$58.5 million in cash as of mid-2025. The company also issued performance rights to employees in late 2025 to incentivize growth and operational advancement.
Delta Lithium operates exclusively in the mining and resources sector, targeting lithium and gold markets primarily in Western Australia but increasingly expanding its lithium tenure and exploration pipeline to capitalize on the growing demand for lithium as a critical mineral for renewable energy and electric vehicles. Its key business segments are lithium mineral exploration, resource development, and preparation for production, alongside gold mining through its former asset now managed by Ballard Mining Limited. The company benefits from strategic partnerships and investments, including a notable backing from Japanese company Idemitsu to support lithium supply stabilization. Overall, Delta Lithium positions itself as a developing leader in lithium exploration and production within Australia with a strong focus on advancing high-quality lithium assets through exploration, resource upgrades, and strategic expansions.