IRIS Metals Limited (ASX:IR1) is an Australia-based exploration company focused on hard rock lithium deposits, primarily through exploration, evaluation, and acquisition of mining tenements in South Dakota, United States. The company holds the largest portfolio of lithium mining claims in South Dakota's Black Hills region, encompassing key projects such as the Beecher Project with its 15-acre patented claims including the historic Longview, Beecher, and Black Diamond mines; Tin Mountain, a historic lithium spodumene mine with near-term development potential; and the Edison, Beryl, and Dewy projects forming a future pipeline for lithium supply; as well as additional assets targeting pegmatite, LCT pegmatites, spodumene, and lithium spodumene deposits. It pursues a hub-and-spoke operational model leveraging permitted brownfield sites for near-term production, with target markets in the North American battery metals industry emphasizing Inflation Reduction Act-compliant domestic supply chains. IRIS Metals Limited, founded in 2020, is headquartered at 9-11 Claremont Street, Suite 205, South Yarra, Victoria 3141, Australia. Recent developments include the September 2025 acquisition of the Ingersoll Project and 87 federal mining claims from Rapid Critical Metals for US$675,000 in shares and cash plus US$850,000 deferred, expanding its Black Hills land package to over 11,300 hectares and enabling Q4 2025 drilling; the July 2025 completion of the Tin Mountain Project acquisition; an $8 million placement in November 2024 attracting investment from Nasdaq-listed Stardust Power Inc.; a non-binding MOU signed in October 2024 with ReElement Technologies (a subsidiary of American Resources Corporation) following successful conversion of Beecher Project spodumene concentrate to 99.5% battery-grade lithium carbonate, advancing toward commercial SC6 production in 2025 and potential ReElement investment; and plans for a US dual-listing to strengthen strategic alliances under the Australia-US Critical Minerals Partnership, alongside maiden mineral resource estimates for Beecher in early 2025 and Tin Mountain in Q1 2026.