Lundin Mining's Vicuna appoints Hochstein as CEO

Mr. Stephen Williams reports VICUNA CORP. ANNOUNCES APPOINTMENT OF RON HOCHSTEIN AS CHIEF EXECUTIVE OFFICER The board of directors of Vicuna Corp., where Lundin Mining Corp. has a 50-per-cent shareholding, has approved the appointment of Ron Hochstein as chief executive officer of Vicuna, effective Nov. 7, 2025. Vicuna is a 50/50 joint arrangement between Lundin Mining and BHP that holds the consolidated deposits of Filo del Sol and Josemaria. Jack Lundin, president and CEO of Lundin Mining and board member of Vicuna, commented: "We are very pleased to welcome Ron to the Vicuna management team. Ron has been an integral member of the Lundin group for more than 30 years, holding a variety of leadership roles and building an outstanding track record of creating shareholder value. Most recently, he worked with Dave Dicaire, current general manager of Vicuna, to deliver the Fruta del Norte gold mine in Ecuador, the country's first modern greenfield mining project, which was completed on time and on budget and today operates with one of the highest standards in the sector. Ron's leadership and commitment will be a great addition to the team at this stage of development for the Vicuna project." Mr. Dicaire will continue to serve as general manager of Vicuna, reporting to the CEO, while maintaining responsibility for the integrated design, execution plan and overall development of the Vicuna project. The Vicuna CEO role will be primarily based in Argentina to provide additional support across critical work streams, strengthen stakeholder engagement and enable the project team to remain fully focused on advancing a best-in-class megaproject. Mr. Hochstein has built a distinguished career as a leader in the global mining sector, bringing over three decades of technical expertise and executive experience to the industry. Since 2015, he has served as president and CEO of Lundin Gold Inc., where he guided the development and successful operations at the Fruta del Norte gold mine. Under his leadership, the company acquired and built an asset which serves as a standard for responsible mining development today. Mr. Hochstein's academic background reflects his blend of technical and business acumen. He is a professional engineer with a bachelor of science from the University of Alberta, and he also holds an MBA from the University of British Columbia. About Lundin Mining Corp. Lundin Mining is a diversified Canadian base metal mining company with projects or operations in Argentina, Brazil, Chile and the United States, primarily producing copper, gold and nickel. We seek Safe Harbor.