Introduction
Ioneer Ltd. (ASX: INR), the owner of the Rhyolite Ridge lithium project in Nevada, has expressed strong confidence in securing a new investor in the near term, even after South African miner Sibanye-Stillwater pulled out of a $490 million deal earlier this year. As reported by the Financial Times, the company is now aiming for a higher valuation than the $1.3 billion net present value estimated in 2020.
Project Overview and Challenges
Located approximately 362 km north of Las Vegas, Rhyolite Ridge is one of the largest lithium resources in the US and one of only two advanced-stage lithium projects in the country. A 2020 feasibility study projected a 26-year mine life with an annual production of 22,000 tonnes of lithium carbonate, enough to power around 370,000 electric vehicles yearly. However, the initial capital cost is steep at $785 million, and the lithium market has been volatile, with prices dropping significantly since their peak in late 2022.
Sibanye-Stillwater’s exit in February, citing unmet investment thresholds amid weak lithium prices and its own financial struggles, was a setback. Yet, Ioneer’s managing director Bernard Rowe remains optimistic, telling the Financial Times that the company aims to sell a 40% stake to one or two investors soon.
Higher Valuation and Resource Growth
Ioneer is now seeking a valuation exceeding the 2020 estimate, bolstered by a fully permitted project and a 45% increase in resources to 510 million tonnes, as per a February 2025 update. This translates to nearly 4 million tonnes of lithium carbonate equivalent, with over 80% in high-confidence categories. Additionally, the US government has approved a nearly $1 billion loan to fund a processing facility, contingent on securing an equity partner.
Lithium analyst Federico Gay from Benchmark noted that while construction costs for Rhyolite Ridge are high, the mine could be competitive once operational compared to other lithium projects globally.
Analysis and Perspective
While Ioneer’s confidence is commendable, the volatile lithium market and high upfront costs pose significant risks. The sharp decline in lithium prices since 2022 may deter potential investors, especially those cautious after Sibanye’s withdrawal. Moreover, the dependency on securing an equity partner to unlock the US government loan adds another layer of uncertainty. However, the project’s strategic importance to the US battery metals supply chain and the substantial resource growth could attract interest from investors betting on a long-term lithium demand surge driven by electric vehicle adoption.