Published: April 16, 2024 |

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Ioneer Ltd. moved one step closer toward construction at its Rhyolite Ridge Lithium-Boron site, following the Bureau of Land Management’s (BLM) planned issuance of the project’s draft environmental impact statement (EIS), as referenced in the BLM’s statement.

The pending release of this draft EIS is the first to be issued as part of efforts to accelerate domestic lithium production. It is the result of years of effective collaboration between Ioneer and federal, state, and local agencies and Tribal Nations. It marks a key milestone in the environmental permitting review process for the proposed greenfield project in Esmeralda County, Nevada, set to inject a critical supply of integral transition materials into the U.S. EV battery production supply chain.

The draft document will include Ioneer’s efforts to redesign and relocate proposed project activity away from Tiehm’s buckwheat, an endangered species classified by the U.S. Fish and Wildlife Service (FWS) in December 2022. The draft EIS will also detail Ioneer’s investments as part of a formal protection plan and propagation strategy for the Nevada plant.

The draft EIS will be available for public comment beginning Friday, Aprill 19. Following the prescribed 45-day comment period, which will include BLM-organized public meetings, the BLM will incorporate feedback into a final draft and issue a final EIS and a record of cecision (ROD), expected in October 2024. Upon issuance of a positive ROD, construction at Rhyolite Ridge can begin following a final investment decision (FID). Based on that timeline, Ioneer anticipates production to begin in 2027.

“The forthcoming release of the draft EIS represents six years of hard work to help build America’s critical minerals supply chain and reaffirms the viability of our investment in Nevada. Rhyolite Ridge will help accelerate the electric vehicle transition and secure a cleaner future for our children and grandchildren. As we move through the final steps in the federal permitting process, Ioneer will keep working to ensure this world-class project will operate efficiently and sustainably,” said James Calaway, Ioneer’s executive chairman.

“This news sets a clear path forward to construction and brings us one step closer to making Rhyolite Ridge a reality. Rhyolite Ridge will be a significant, reliable and sustainable source of critical minerals for the United States,” said Bernard Rowe, Ioneer’s managing director.

“Ioneer is committed to working with the local community, Tribal Nations, and state and federal agencies to help the U.S. secure a domestic supply of the critical minerals vital to the clean energy transition,” added Rowe.

To date, Ioneer has voluntarily invested $2.5 million in conservation efforts and committed an additional $1 million annually to ensure the Tiehm’s buckwheat and its surrounding habitat are protected. Ioneer will work to ensure the plant and its habitat for pollinators are protected as it works to transplant seedlings grown at its dedicated greenhouse.

Ioneer’s investments to protect Tiehm’s buckwheat represent one piece of a comprehensive sustainability strategy at the proposed site. The on-site processing facility, supported by the company’s $700 million conditional loan commitment from the U.S. Department of Energy Loan Programs Office, will generate excess steam sufficient to power the entire project — meaning the operation will not be required to be connected to the energy grid and be entirely energy independent.

Ioneer’s approach to water management also differs from other current and proposed domestic producers. Rhyolite Ridge will recycle half of all water used. The project will not have evaporation ponds or tailings dams and large parts of the quarry will be backfilled with overburden as mining progresses and ultimately concludes.

Ioneer Ltd. is an emerging lithium–boron producer and the 100 percent owner of the Rhyolite Ridge Lithium- Boron Project located in Nevada. Rhyolite Ridge is the only known lithium-boron deposit in North America and one of only two known such deposits in the world. Once operational, the low-cost, world- class project is expected to power upward of 50 million electric vehicles and will instantly become a globally significant source of critical materials vital to the clean energy transition. In September 2021, Ioneer entered into an agreement with Sibanye-Stillwater where, following the satisfaction of conditions precedent, Sibanye-Stillwater will acquire a 50 precent interest in the project, with Ioneer maintaining a 50 percent interest and retaining the operational management responsibility for the joint venture. In January 2023, Ioneer received a conditional commitment from the U.S. Department of Energy Loan Programs Office for up to $700 million of debt financing.

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