Critical Elements Reports High Grade Polymettalic Results from the Nemaska Belt Properties, with Results up to 5.7% Cu, 0.82% Ni, 0.17% Co, 0.39 g/t Pt, 2.0 g/t Pd, 14.8 g/t Au and over 100 g/t Ag

MONTREAL, QC / ACCESS Newswire / November 4, 2025 / Critical Elements Lithium Corporation (TSXV:CRE)(OTCQX:CRECF)(FSE:F12) ("Critical Elements" or the "Corporation") is pleased to announce the latest results from the 2025 summer exploration program completed on Critical Elements' 100%-owned Nemaska Belt properties group, in the Eeyou Istchee region of Québec (Figure 1).

An important helicopter-borne electromagnetic VTEM plus time-domain system ("VTEM") survey covering the Nemaska Belt properties was designed to provide data incremental to the high-resolution magnetic survey completed in 2021. These datasets aided the exploration surface program targeting potentially economic mineralization, including high-grade nickel-copper-PGE and lithium-bearing spodumene.

Interest in high-grade nickel-copper-PGE mineralization in the region has increased with the exploration success of Power Metallic Mines Inc. ("Power Metallic"), formerly Chilean Metals Inc. Critical Elements optioned the Nisk Property to Power Metallic in 2020 (see press release dated December 23, 2020). Following the exercise of the option agreement by Power Metallic on the Property hosting the Ni-Cu-PGE Nisk deposit and the new polymetallic Lion discovery, Critical Elements retains a non-dilutive interest of 20% until a definitive feasibility study regarding extraction and production activities is completed on the Nisk property. Critical Elements also held just over 10 million shares of Power Metallic as of May 31, 2025 (Condensed Interim Financial Statements for the nine-month period ending May 31, 2025).

"We are very excited by these new preliminary exploration results on the Nemaska Belt properties and the upcoming winter drill program to test the resultant targets", noted CEO Jean-Sébastien Lavallée. "We are also excited to resume expansion drilling this winter on the Rose West lithium discovery within 10 km of our flagship Rose lithium project. These near-term exploration initiatives should demonstrate the significant potential of our extensive land package in Eeyou Istchee, Québec, one of the leading mining jurisdictions globally. Our long-term objective, however, remains to develop the Rose project, one of the most advanced hard rock lithium projects in North America. To this end, discussions with potential strategic partners have continued fruitfully as the lithium market appears to be reemerging from its hiatus."

Mineralized Zones

During the 2025 summer exploration program, multiple mineralized zones were identified through rock sampling in areas coinciding with electromagnetic anomalies (VTEM conductors). The mineralization is dominated by pyrrhotite and pyrite (iron sulfides) with chalcopyrite (copper sulfide) and/or pentlandite (iron-nickel sulfide). Surface exploration confirmed historical showings and identified newly prospective areas. The exploration program was designed to maximize geochemical coverage and assist in defining targets for future drill testing (Table 1, 2 and 3,Figures 1, 2 and 3).

The best new results from the 452 rock samples that were still pending (Table 1 and 3) from the 1,091 rock samples collected during the summer campaign are shown below (Table 2 for previously announced results) (see press release dated September 11, 2025). Of these samples:

• 58 grab samples grading 0.1% or above copper, with values up to 5.70% copper

• 50 grab samples grading 0.1% or above nickel, with values up to 0.82% nickel

• 6 grab samples grading 0.05% or above cobalt, with values up to 0.17% cobalt

• 20 grab samples grading 0.1 g/t or above platinum, with value up to 0.39 g/t platinum

• 56 grab samples grading 0.1 g/t or above palladium, with values up to 2.0 g/t palladium

• 10 grab samples grading above 1.0 g/t gold, with values up to 14.80 g/t gold

• 70 grab samples grading 1.0 g/t or above silver, with values up to over 100 g/t silver

• 15 grab samples grading above 0.5% Li₂O, with values up to 2.10% Li₂O

Grab samples are selective by nature, unlikely to represent average grades, and may not represent true underlying mineralization.

Figure 1: Map showing the best Cu-Ni-Co-Pt-Pd-Au Results

Table 1: Best 2025 New Samples Cu-Ni-Co-Pt-Pd-Au-Ag results