Capstone Copper Announces 2026 Annual General Meeting Results

Company Website: https://www.capstonecopper.com VANCOUVER, British Columbia -- (Business Wire) Capstone Copper Corp. (“Capstone” or the “Company”) (TSX:CS) (ASX:CSC) announced the voting results from its 2026 Annual General Meeting ("AGM") held April 30, 2026 in Vancouver, British Columbia. A total of 581,161,851 common shares were voted at the meeting, representing 76.10% of the votes attached to all outstanding common shares. Shareholders voted in favour of all items of business before the meeting, as follows: Number of Directors % For % Against Number of Directors to be set at eight 89.32% 10.68% Election of Directors % of Votes For % of Votes Withheld Alison Baker 93.34% 6.66% Gordon Bell 99.45% 0.55% Richard Coleman 99.19% 0.81% Anne Giardini 98.55% 1.45% John MacKenzie 97.36% 2.64% Cashel Meagher 99.89% 0.11% Peter Meredith 97.86% 2.14% Patricia Palacios 95.03% 4.97% Appointment of Auditor % For % Withheld To re-appoint Deloitte LLP as Auditor of the Company for the ensuing year and to authorize the Directors to fix their remuneration 99.94% 0.06% Option Plan % For % Against To approve Capstone’s amended and restated Incentive Share Option and Bonus Share Plan (the “Option Plan”), and approve all unallocated options that may be granted under the Option Plan 70.17% 29.83% Treasury Share Unit Plan % For % Against To approve Capstone’s amended and restated Treasury Share Unit Plan (the “Treasury Share Unit Plan”), and approve all unallocated entitlements that may be granted under the Treasury Share Unit Plan 96.94% 3.06% Say on Pay % For % Against To pass an advisory vote on Capstone’s approach to executive compensation as disclosed in the Management Information Circular 84.76% 15.24% Detailed voting results for the 2026 AGM are available on SEDAR+ at www.sedarplus.ca About Capstone Copper Corp. Capstone Copper Corp. is an Americas-focused copper mining company headquartered in Vancouver, Canada. Capstone’s operating portfolio of assets includes the Pinto Valley copper mine located in Arizona, USA, the Cozamin copper-silver mine located in Zacatecas, Mexico, the Mantos Blancos copper-silver mine located in the Antofagasta region, Chile, and the Mantoverde copper-gold mine, located in the Atacama region, Chile. Capstone’s growth pipeline includes the fully permitted Santo Domingo copper-iron-gold project, located approximately 35 kilometres northeast of Mantoverde in the Atacama region, Chile, as well as a portfolio of exploration properties in the Americas. Capstone Copper’s strategy is to unlock transformational copper production growth while executing on cost and operational improvements through innovation, optimization and safe and responsible production throughout our portfolio of assets. We focus on profitability and disciplined capital allocation to surface stakeholder value. We are committed to creating a positive impact in the lives of our people and local communities, while delivering compelling returns to investors by responsibly producing copper to meet the world’s growing needs. Further information is available at www.capstonecopper.com View source version on businesswire.com: https://www.businesswire.com/news/home/20260430347439/en/ Contacts: Daniel Sampieri, Vice President, Investor Relations 437-788-1767 [email protected] Michael Slifirski, Director, Investor Relations, APAC Region 61-412-251-818 [email protected] Claire Stirling, Manager, Investor Relations 416-831-8908 [email protected] Source: Capstone Copper Corp.