Nevada Lithium Announces Significant Amounts of Critical Minerals Rubidium and Cesium Within its Bonnie Claire Lithium Project

Executive Summary

• Nevada Lithium identified significant rubidium (Rb) and cesium (Cs) mineralization in existing drill core from the Bonnie Claire lithium project.
• Assays from four holes show high-grade intervals (e.g., 248 ppm Cs over 318.5 ft; 313 ppm Rb over 298.5 ft) with strong positive correlation to lithium and boron grades.
• Preliminary Pregnant Leach Solution (PLS) analysis confirms recoverable levels of Rb and Cs, prompting evaluation of recovery economics that could boost by‑product revenue and overall project value.

Key Details

• Assay Highlights – Significant Cs: 248 ppm over 318.5 ft (hole BC‑2401C); Significant Rb: 313 ppm over 298.5 ft (hole BC‑2401C).
• Composite Intervals – Table 1 (Cs) and Table 2 (Rb) provide interval averages for four drill holes, showing concurrent high Li (≈4,000–5,400 ppm) and B (≈15,500–18,300 ppm) grades.
• Correlation – Cs‑Li R² ≈ 0.81; Rb‑Li R² ≈ 0.81; Cs‑B R² just under 0.80; Rb‑B R² ≈ 0.69, indicating strong grade relationships.
• PLS Findings – Initial metallurgical testing of the Pregnant Leach Solution detected rubidium and cesium concentrations sufficient to warrant further recovery testing.
• Economic Implication – Recovery of Rb and Cs could enhance the boron by‑product revenue stream identified in the PEA (announced Aug 6 2025) and improve overall project economics.
• Project Context – Bonnie Claire has a 61‑year mine life, processing ~3 million tonnes per year; the discovery adds critical U.S. domestic supply potential for Rb and Cs (listed on the US Dept. of Interior Draft 2025 Critical Minerals List).
• Next Steps – Company will explore recovery/enrichment options and integrate findings with lithium flowsheet optimization.

Notable Quotes

“The presence of rubidium and cesium at Bonnie Claire is an exciting development that has the potential to increase the robust economics demonstrated by our PEA…” – Stephen Rentschler, CEO

All technical data reviewed and approved by Dr. Jeff Wilson, VP Exploration (NI 43‑101 Qualified Person).