West Vancouver, British Columbia--(Newsfile Corp. - July 8, 2026) - Surge Battery Metals Inc. (TSXV: NILI) (OTCQX: NILIF) (FSE: DJ5) (the "Company" or "Surge") is pleased to announce that Nevada North Lithium, LLC ("NNL"), the joint venture formed by Surge and Evolution Mining Limited ("Evolution"), has received final analytical reruns for all 2022 and 2023 drill holes on the Nevada North Lithium Project. The results confirm geochemical continuity of the high-value critical metals Cesium (Cs) and Rubidium (Rb) across the entire deposit footprint.
Consequently, Surge has engaged its independent resource consultants at RESPEC to calculate and integrate these results into the geological models underpinning the Project's upcoming Pre-Feasibility Study (PFS). The presence of Cesium and Rubidium was not included in the recently published lithium-only MRE.
Key Highlights:
Cross-Project Grades: Standardized multi-element assays from the 2022 and 2023 core reruns match the trends identified in 2024 and 2025, establishing a Project-wide critical minerals database.
Value Concentration in Primary Mine Horizons: Within the Cu2 and Cu3 clay layers-which are anticipated to represent most of the material extracted under the current mine plan-geochemical modeling demonstrates positive average grades depending on the chosen lithium cut-off threshold:
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At a 2,000-ppm Li Cut-off, geochemical modeling demonstrates highly concentrated averages of 125 ppm Cesium (Cs) and 291 ppm Rubidium (Rb).
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At a 1,250-ppm Li Cut-off, uniform, Project-wide averages of 120 ppm Cesium (Cs) and 277 ppm Rubidium (Rb) are observed.
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Kemetco Refining and Deportment Studies Underway: The Company has expanded its metallurgical test work scope with Kemetco Research Inc. ("Kemetco") to map the precise deportment and extraction pathways of these specialty metals. Advanced testing is actively evaluating the potential to recover Cesium and Rubidium as high-value co-products or by-products alongside the primary lithium carbonate flowsheet.
Mr. Greg Reimer, President, Chief Executive Officer and Director of Surge, commented, "These results demonstrate that high-grade cesium and rubidium are geochemically bound to our highest-grade lithium zones. We are now working with RESPEC to integrate these Cesium and Rubidium results into the upcoming PFS."
Figure 1. Scatter Plot of positive relationship between Li and Cs.
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