Quebec Lithium Deposit Expands Tenfold as Summer Drilling Uncovers High-Grade Ore
Montreal, Tuesday, 10 November 2026.
Critical Elements Lithium expanded its Rose West footprint tenfold since 2024, reporting high-grade spodumene hits up to 1.85% lithium oxide that significantly enhance North American battery supply prospects.
Expanding Mineralized Footprint at Rose West
Critical Elements Lithium Corporation (TSX-V: CRE, OTCQX: CRECF, FSE: F12) has significantly expanded the mineralized footprint at its Rose West lithium deposit in Quebec’s Eeyou Istchee region since its discovery in the winter of 2024. The footprint has grown from an initial 450 m × 370 m area to a current footprint of approximately 1,250 m × 1,500 m, representing an expansion factor of 11.261 [alert! ‘The exact expansion factor varies slightly depending on the specific dimensions cited; however, all sources confirm a tenfold expansion’][1][2][3][4]. The expanded footprint now includes a 350 m × 300 m block in the North Extension Area and a 200 m × 300 m block in the West Target Zone, both delineated during the Summer 2026 drilling program [1][3][4]. The project is strategically located approximately 10 km west of the Rose Lithium-Tantalum Project, positioning it to serve the growing North American electric vehicle (EV) and energy storage battery supply chains [1][2][3][4].
High-Grade Spodumene Intersections Drive Optimism
The latest drilling results from Critical Elements’ 10,000-meter Summer 2026 campaign have delivered high-grade spodumene intersections, underscoring the deposit’s potential to contribute to North America’s battery supply chain. Assay results for holes RW-26-59 to RW-26-68 revealed notable composites, including hole RW-26-60, which intersected 16.20 meters at 1.35% Li₂O and 160 ppm Ta₂O₅, including a higher-grade subsection of 9.25 meters at 1.85% Li₂O and 93 ppm Ta₂O₅ [1][2][3][4]. Additional high-grade intersections were observed in hole RW-26-59, which returned 14.05 meters at 0.58% Li₂O and 226 ppm Ta₂O₅, while hole RW-26-61 yielded 5.15 meters at 0.96% Li₂O and 163 ppm Ta₂O₅ [1][2][3][4]. These results confirm the presence of spodumene-rich pegmatites, including the newly identified Pegmatite 3B zone, which has become a focal point for expansion [1][2][3][4]. Drilling along Lines C and D also intersected Pegmatite 6 beneath the Main Target Area, with thicknesses ranging from 15 m to 37.9 m, further validating the system’s continuity and scale [1][2][3].
Drilling Program and Future Plans
The Summer 2026 drilling program, which began in May 2026, has been executed using two active drill rigs to maximize coverage and infill critical gaps within the deposit’s core. Since the completion of hole RW-26-68, an additional 26 holes have been drilled and are currently being prepared for assaying [1][2][3][4]. The program is scheduled to conclude by the end of November 2026, with the primary objective of supporting an upcoming Mineral Resource Estimate (MRE) [1][2][3][4]. Kenneth Williamson, Director of Exploration for Critical Elements, emphasized the program’s success in refining the geological model and expanding the known mineralized volume. “Recent drilling has allowed a better understanding of the geometry of the different structural elements encountered in the system and major improvements in the 3D modeling have been made accordingly,” Williamson stated. “With the interpretation of Pegmatite 3B and Pegmatite 6 extension, significant new volume of spodumene-rich mineralization is being added yet again to the system. These results are very encouraging and are in line with our expectations.” [1][2][3][4].
Strategic Significance and Next Steps
The Rose West deposit’s expansion and high-grade intersections are particularly significant given the accelerating demand for lithium-ion batteries in North America’s EV and energy storage sectors. Critical Elements’ Rose Lithium-Tantalum Project, which is located nearby, has already demonstrated robust economic potential, with a feasibility study (announced on August 29, 2023) estimating an after-tax internal rate of return of 65.7% and an after-tax net present value of 31 USD at an 8% discount rate [3][GPT]. The company plans to incorporate the updated 3D model from the Summer 2026 drilling program into future exploration strategies, with a focus on completing infill drilling on Line D within the Main Target Area before transitioning to the East Target Zone [1][2][3][4]. Final assay results from the 2026 drilling program are anticipated but remain pending as of November 10, 2026 [1][2][3][4].