Critical Elements Lithium Corporation has returned significant assay results from its Phase 2 summer exploration program at the Rose West Discovery in Eeyou Istchee, Québec, highlighted by an intersection of 1.89% lithium oxide and 161 parts per million tantalum pentoxide over 27.35 meters in hole RW-26-35A.

The drilling campaign deployed two rigs across the property using a 100-meter grid approach designed to expand the known mineralized volume outward. Hole RW-26-35A also included a higher-grade interval of 2.70% lithium oxide and 222 parts per million tantalum pentoxide over 10.50 meters within Pegmatite 3. Additional results from hole RW-26-51 intersected 1.58% lithium oxide and 118 parts per million tantalum pentoxide over 16.85 meters through Pegmatite 3, alongside 1.23% lithium oxide over 6.45 meters through Pegmatite 5.

The summer program follows an earlier winter drilling campaign that expanded the Rose West footprint from an initial 450 meters by 370 meters defined in 2024 to an overall footprint of 1,250 meters by 800 meters. Rose West is located approximately 10 kilometers west of the company's Rose Lithium-Tantalum Project, representing the first lithium asset Critical Elements is advancing within a land portfolio exceeding 1,016 square kilometers in Québec.

Recent drilling has successfully added a 300-meter by 300-meter block, expanding the lateral footprint of Pegmatites 2, 3, and 5 with stacked, generally flat-lying bodies ranging from 10 to 30 meters in thickness. While holes RW-26-35A, RW-26-51, and RW-26-52 confirmed consistent thicknesses in Pegmatite 3, geological logging also identified a major fault in holes RW-26-53 and RW-26-55 that explains the absence of Pegmatite 3 in holes RW-26-57 and RW-26-58 on Line I.

“The Summer 2026 drilling program continue to demonstrate the continuity of not just one, but several lithium- and tantalum-rich pegmatites. The results presented in this press release allow to expand and/or close off the know pegmatites in an area that covers approximately 300 by 300 m.”

— Kenneth Williamson, Director of Exploration

The company completed 11 holes totaling 2,073 meters during the resumed campaign before field activities were briefly paused due to regional forest fire activity. Assay results for several additional drill holes remain pending.

Read the full announcement: Critical Elements 10,000-Meter Summer Drill Program at Rose West Resumes with Positive Results