Comet Lithium begins phase 2 exploration at Elmer East

Mr. Vincent Metcalfe reports COMET LITHIUM LAUNCHES FOLLOW-UP EXPLORATION PROGRAM FOR RECENTLY ANNOUNCED HIGH-GRADE CAESIUM-LITHIUM PEGMATITE DISCOVERY AT ELMER EAST Comet Lithium Corp. has launched its fall 2025 phase 2 exploration program at its 100-per-cent-owned Elmer East property, located in the Eeyou Istchee James Bay region of the province of Quebec. Prospecting program: a targeted follow-up program near discovery The follow-up program, conducted with Dahrouge Geological Consulting Ltd., will span several days and deploy three field teams to complete detailed prospecting, structural mapping, traverses, sampling and channel work in and around the newly discovered pegmatite occurrence. Priority zones represent areas most prospective for additional cesium-lithium mineralization. Elmer East property Exploration to date has outlined several high-potential corridors, with follow-up work focused on extending known mineralization along strike and testing for new outcrops or subcropping pegmatites across the broader Elmer East land package. "The discovery of a cesium-lithium pegmatite at Elmer East earlier this year confirmed the property's strong potential," said Vincent Metcalfe, chair and chief executive officer of Comet Lithium. "This fall program is designed to build on that success by systematically testing the highest-priority targets near the existing cesium discovery. With three experienced field crews and the support of Dahrouge, we are confident this work will [provide] critical insights into the scale and continuity of mineralization, positioning Comet Lithium for the next stage of growth." Qualified person Vincent Cardin-Tremblay, PGeo (ogq No. 1386, PGO No. 3347), registered in the provinces of Quebec and Ontario, is vice-president, exploration, to Comet Lithium, and is a qualified person under National Instrument 43-101 (Standards of Disclosure for Mineral Projects). He has reviewed the technical contents of this news release and has approved the disclosure of the technical information contained herein. About Comet Lithium Corp. Comet Lithium is a dynamic exploration company with a growing portfolio of highly prospective assets located in Quebec, including several properties in the prolific James Bay district. The company's land package includes the Liberty property, located adjacent to Winsome Resources' Adina lithium discovery, and the Troilus East property, positioned next to Troilus Gold's multimillion-ounce gold-copper project. Comet's strategy is focused on systematic exploration and unlocking the value of its diverse property portfolio through targeted fieldwork and strategic partnerships. We seek Safe Harbor.