Cartier Reports Significant Gold Resource Growth At Cadillac With 9,953,000 tonnes at a grade of 2.40g/t Au for 767,800 Ounces Measured and Indicated, a 7% Increase and 35,185,000 tonnes at a grade of 2.14g/t Au for 2,416,900 Ounces Inferred, a 48%

VAL-D’OR, Quebec, Dec. 18, 2025 (GLOBE NEWSWIRE) -- Cartier Resources Inc. (″Cartier″ or the ″Company″) (TSXV: ECR; FSE: 6CA) is pleased to announce the results of the Updated Mineral Resource Estimate ("MRE") on its 100% owned flagship Cadillac Project, located in Val-d’Or (Abitibi, Quebec). The updated estimates include approximately 110,000 metres of drilling completed by Cartier from 2016 to 2024 as well as 420,000 metres drilling completed by previous mining companies. The MRE was independently prepared by PLR Resources Inc. and Evomine, specialists in mineral resource estimates and project evaluations, in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") and is dated December 17, 2025.