Copper One Announces First Assays Pending From 2026 Drill Program as MHB-37B Surpasses 2,400 Feet at Majuba Hill, Nevada

Copper One Resources Corp. (CSE: CEXY | OTCID: CEXYF | FSE: IW8 | WKN: A42AGR) (“Copper One” or the “Company”) is pleased to announce that drill hole MHB-37B has surpassed 2,400 feet (732 metres), while the first 1,760 feet (536 metres) of drill core has been submitted to ALS Laboratories in Reno, Nevada, for geochemical analysis. With the initial assay results from the Company's 2026 drilling program at its flagship Majuba Hill Copper-Silver-Gold Project ( "Majuba Hill" ) in Pershing County, Nevada, now pending, the program continues to advance on schedule.

Drilling at MHB-37B remains in progress and has surpassed 2,389 feet (728 metres) toward its planned total depth of approximately 2,500 feet (762 metres). The first 1,760 feet (536 metres) of drill core has been submitted to ALS Laboratories in Reno, Nevada, an independent accredited laboratory, for sample preparation and geochemical analysis. Assay results are pending and will be reported following receipt, review and completion of the Company's quality assurance and quality control procedures. Chalcopyrite, pyrite and possible sphalerite were visually observed within the ALS Formation between approximately 800 feet (243.8 metres) and 1,100 feet (335.3 metres). The ALS Formation is the host rock for the rhyolite porphyry intrusions. Visual observations of sulphide minerals are preliminary in nature and should not be considered representative of mineral grades or widths.

MHB-37B is the initial ExploreTech AI-assisted core hole in the 2026 drill program. The hole is designed to reach approximately 2,500 feet (762 metres) and to test AI-driven modelling of geophysical data combined with breccia mapping from the spring campaign. The target follows up on historic drill holes that intersected significant copper-silver-gold mineralization.

Drill-core samples from MHB-37B and surface rock samples were submitted to ALS Laboratories in Reno, Nevada, an independent accredited laboratory, for sample preparation and geochemical analysis. The Company's quality assurance and quality control (QA/QC) program includes the insertion of certified reference materials, blanks and duplicate samples into the sample stream at regular intervals. Laboratory procedures also incorporate internal quality control protocols. Surface rock-chip samples are selective by nature and may not be representative of the mineralization across the property.

Majuba Hill is Copper One’s flagship copper, silver and gold exploration project, located in Nevada, USA, one of the world’s premier mining jurisdictions.