Copper One Resources Appoints Sebastien Bricka as Project Lead and Chief Geologist for Majuba Hill Project

VANCOUVER, BC — September 16, 2026 — Leads & Copy — Copper One Resources Corp. has appointed Sebastien Bricka as Project Lead and Chief Geologist for its Majuba Hill Copper-Silver-Gold Project in Pershing County, Nevada. Bricka, who holds a Bachelor of Science in Geological and Earth Sciences/Geosciences from the University of California, Santa Barbara, brings over nine years of experience in mineral exploration and geological modeling across Nevada and the western United States.

Bricka's expertise includes geological mapping, field investigation, sampling, geological interpretation, and integrating data for exploration programs. He currently works as a Project Geologist with RESPEC in Reno, Nevada, a role he has held since 2023. Prior to this, he spent four years as an Exploration Geologist with Integra Resources Corp., where he gained significant field and project experience in the Great Basin. His earlier career included work as a Contract Geologist with Rangefront Geological in Elko, Nevada.

Copper One also announced that its representatives attended the 2026 Nevada Mining Association Convention in Lake Tahoe from September 9-11, 2026. The convention gathered participants from Nevada's mining supply chain to discuss trends in the jurisdiction. The company’s attendance reinforces its commitment to the Nevada mining community, following its announcement in April 2025 of joining the Nevada Mining Association and its ongoing work on the Majuba Hill Project.

David Greenway, President and CEO of Copper One, stated that Bricka's extensive Nevada-based exploration experience will be valuable as the company prepares to commence its Phase 2 drill program. He added that Bricka's contribution will help refine the understanding of the Majuba Hill Project's copper-silver-gold mineralized system and advance towards establishing an NI 43-101-compliant mineral resource estimate.

The company has completed site preparations for its 2026 Phase 2 drill program, including four drill pads and associated sites for a planned 4,000-foot (1,219-metre) program. Bricka has been tasked with overseeing this program and designing follow-on drilling, with the primary objective of establishing a mineral resource estimate.

Bricka expressed his enthusiasm for building upon the existing work at Majuba Hill and contributing to the technical understanding of the copper-silver-gold mineralized system. He also noted his positive experience at the Nevada Mining Association Convention and looks forward to the upcoming Phase 2 drill program.

The Majuba Hill Copper-Silver-Gold Project is located in Pershing County, Nevada, and spans approximately 9,684 acres. It benefits from infrastructure including year-round road access, nearby electrical power, and water. The project, a past-producing copper mine, has an extensive exploration database with approximately 89,395 feet of historical drilling. Exploration has identified a large copper-silver-gold hydrothermal mineralized system that remains open for expansion. Current exploration focuses on advancing the geological model through drilling, mapping, sampling, and structural interpretation.

The scientific and technical information in the release was reviewed by Larry Segerstrom, M.Sc. (Geology), CPG, a consulting geologist to the Company and a Qualified Person as defined by National Instrument 43-101.

Copper One Resources Corp. focuses on identifying, acquiring, and advancing copper, copper-silver-gold, and copper-molybdenum projects. The company’s other assets include the Redonda Copper-Molybdenum Project in British Columbia, an option to earn interest in the Redhill Property in British Columbia, and potentially the Sport Project in Utah upon completion of an acquisition of Rooinek Mining Corp. The company is advancing its portfolio through systematic exploration and technical evaluation, aiming to create long-term shareholder value.

Source: Copper One Resources Corp.