Arverne Lithium Resources Reach 26 Million Tons of LCE

Arverne Lithium Resources Reach 26 Million Tons of LCE

On September 14, Arverne announced the results of an independent lithium resource assessment covering its Exclusive Exploration Permits (PERs) portfolio in Alsace. The assessment was conducted by Sproule ERCE, an international consultancy specializing in resource evaluation and certification. The findings estimate Indicated and Inferred Resources of 26 million tons of lithium carbonate equivalent (LCE) across the portfolio. The assessment provides an independently evaluated resource base for Arverne’s lithium-bearing assets and establishes a quantified foundation for the continued development of its geothermal and lithium activities in Alsace.

Exploration Potential Reaches 43 Million Tons

In addition to the 26 million tons of Indicated and Inferred Resources, the assessment identified total exploration potential of up to 43 million tons of LCE across Arverne’s Exclusive Exploration Permits in Alsace. This exploration potential represents the broader resource opportunity identified within the permitted portfolio beyond the currently estimated Indicated and Inferred Resources. The assessment therefore provides both a defined resource estimate and a larger exploration potential for the assets. Together, these figures establish the scale of the lithium opportunity associated with Arverne’s Alsace portfolio while maintaining a distinction between assessed resources and exploration potential.

Assessment Supports Lithium de France Development Plan

The total exploration potential exceeds the requirements of Lithium de France’s development plan, according to Arverne. The result confirms the long-term potential of Arverne’s geothermal and lithium-bearing asset portfolio in Alsace and provides additional resource context for the project’s development trajectory. The findings are based on the independent assessment performed by Sproule ERCE, rather than an internally generated resource estimate. This distinction is important because the assessment provides an external evaluation of the resources and exploration potential associated with the company’s Exclusive Exploration Permits.

Reserve Certification Expected in First Quarter 2027

The next certification phase will focus on reserves and is expected in the first quarter of 2027. This phase represents a key milestone for the development of the Lithium de France project because it will follow the current assessment of Indicated and Inferred Resources and the broader exploration potential. The progression toward reserve certification is intended to further establish the project’s development basis. For Arverne, the upcoming phase will therefore provide another formal assessment point for its Alsace portfolio and the lithium-bearing resources associated with the project, following the independent evaluation already completed by Sproule ERCE.

Industry Impact & Outlook

The assessment strengthens the quantified resource basis for lithium development in Alsace by distinguishing 26 million tons of Indicated and Inferred Resources from exploration potential of up to 43 million tons of LCE. For Arverne and Lithium de France, the results provide additional support for advancing the project toward its next certification stage, while the broader exploration potential indicates that further resource definition remains relevant. The expected first-quarter 2027 reserve certification will be an important next step because reserve information can provide a more advanced basis for evaluating project development, subject to the outcome of that certification process.

Frequently Asked Questions

What did the independent lithium assessment find in Alsace?
The independent assessment identified 26 million tons of Indicated and Inferred Resources and up to 43 million tons of total exploration potential across Arverne’s Exclusive Exploration Permits in Alsace. Sproule ERCE conducted the assessment as an international consultancy specializing in resource evaluation and certification. The findings also indicate that the total exploration potential exceeds the requirements of Lithium de France’s development plan. A subsequent certification phase focused on reserves is expected in the first quarter of 2027 and is described as a key milestone for the project.