Ioneer has received a favourable ruling from the US District Court, which upheld the federal permit for the Rhyolite Ridge Lithium-Boron Project.
This decision was part of the case, “Center for Biological Diversity v. Stone-Manning”.
The Court determined that the Bureau of Land Management and the U.S. Fish and Wildlife Service adhered to the requirements of the Endangered Species Act, the Federal Land Policy and Management Act, and the National Environmental Policy Act while reviewing and approving the project.
The Rhyolite Ridge initiative is set to mine and process lithium and boron in Nevada, providing vital materials for technologies including permanent magnets, batteries, and semiconductors.
This development aims to strengthen the US supply chain for critical minerals, mitigate reliance on foreign imports, and enhance national security.
Following the court decision, Ioneer's shares increased by roughly 24% on the New York Stock Exchange, reported Reuters.
Despite this, the company continues to seek a new financial partner since Sibanye Stillwater exited the project in February last year due to financial issues.
The original partnership had been bolstered by a $996m loan from the US Department of Energy, finalised shortly before former US President Joe Biden left office as part of his green energy agenda.
The Rhyolite Ridge mine is anticipated to become one of North America's largest sources of lithium, with automaker Ford among its potential clients.
Nonetheless, the Center for Biological Diversity expressed disappointment with the court's ruling, criticising the government's efforts to conserve local ecosystems as insufficient.
The US Interior Department has declined to comment on the matter but previously asserted that it implemented numerous measures to protect ecosystems surrounding the mine site located about 225 miles north of Las Vegas.
As Ioneer continues negotiations to secure a new partnership for funding the project's $1.67bn capital cost, it remains in discussions with several interested parties.
Ioneer managing director Bernard Rowe said: “Today’s outcome is a credit to all involved parties in the thorough assessment and approval process. We look forward to bringing our long-term, low-cost and stable supply of lithium and boron online.”
