IONR · ioneer Ltd

The U.S. District Court for the District of Nevada's decision on March 31, 2026, in Center for Biological Diversity v. Stone-Manning represents a critical de-risking event for Ioneer Ltd's Rhyolite Ridge Lithium-Boron Project. The court confirmed that the Bureau of Land Management and U.S. Fish and Wildlife Service fully complied with key environmental statutes, including the Endangered Species Act, Federal Land Policy and Management Act, and National Environmental Policy Act, in approving the mine plan. This ruling denies all legal challenges that had threatened the project's viability after more than six years of engagement with state, federal, tribal, and local stakeholders. For investors, this outcome clears a major permitting hurdle, positioning Ioneer to advance strategic partnering, secure final financing, and commence construction on what is described as a linchpin in Nevada's Lithium Loop. The project, one of few global lithium-boron deposits, supports U.S. national security by providing domestic sources for permanent magnets, batteries, semiconductors, and military applications. Underpinning readiness are a closed US$996 million loan from the DOE's Energy Dominance Financing Program in January 2025, final federal permit receipt in October 2024, and binding offtake contracts with Ford Motor Company, Prime Planet Energy & Solutions (Toyota-Panasonic JV), and EcoPro Innovation. Management, led by Bernard Rowe, emphasized the thorough approval process and commitment to delivering low-cost, stable U.S. supply, alongside hundreds of new jobs.