A federal court has sided with the government in a legal battle over a massive lithium mining operation in Nevada, delivering a victory for efforts to boost domestic production of materials critical for electric vehicle batteries.
U.S. District Judge Cristina Silva dismissed environmental groups’ legal challenge on Monday, ruling that federal regulators properly evaluated the potential impact of ioneer’s Rhyolite Ridge mining project on a rare plant species called Tiehm’s buckwheat.
The Australian company’s stock price surged approximately 24% following the court decision. Ioneer is currently searching for a new financial partner after Sibanye Stillwater withdrew from the project last year due to its own monetary difficulties.
The proposed operation is expected to become a major North American source of lithium, the essential battery component, and will supply automaker Ford among other companies.
Environmental advocates from the Center for Biological Diversity had sued to stop the project, contending it could eliminate the rare wildflower entirely while damaging water supplies, air quality, and wildlife habitats in the area.
The organization’s lawsuit claimed the Interior Department’s Bureau of Land Management violated multiple federal environmental laws when approving the mine, including the National Environmental Policy Act, Federal Lands Policy and Management Act, and Endangered Species Act.
In her 14-page decision, Silva determined that government officials established protective measures for the flower that were “sufficiently detailed and reasonable” and properly examined the project’s environmental impacts on water resources and ecological systems.
Company spokesperson Chad Yeftich praised the ruling as an important step forward for America’s critical minerals strategy. “Rhyolite Ridge will create hundreds of new American jobs, reduce reliance on foreign materials and processing and provide a domestic source of two critical minerals,” Yeftich stated.
However, the environmental group expressed strong dissatisfaction with the court’s decision. Patrick Donnelly, a regional director for the Center for Biological Diversity, characterized the government’s wildflower protection plan as “a house of cards.”
“We’re exploring our next steps but we’re more determined than ever to continue fighting to save Tiehm’s buckwheat,” Donnelly said.
The Interior Department chose not to provide comment on the ruling. When initially approving the mine, the department emphasized it had implemented multiple safeguards to protect the ecosystem surrounding the site, located approximately 225 miles north of Las Vegas.
Former President Joe Biden provided final approval for the project in 2024 and secured a $996 million Department of Energy loan just before leaving office as part of his clean energy initiatives.
The mining venture carries an estimated construction cost of $1.67 billion. Company executives report they are currently in “active discussions with a number of parties” regarding potential financial partnerships for the project.
