Strengthening of Senior Management Team

Guardian Metal Resources plc (NYSE.A: GMTL, LON: GMET, OTCQB: GMTLF), a strategic exploration and development company focused on tungsten in Nevada, USA, is pleased to announce the appointment of Mr. David Hendriks as Chief Operating Officer (“COO”) and Mr. Ron Espell as Vice-President, Environment & Permitting.

• Hendriks is a senior mining engineer with over 30 years’ experience developing, constructing, and operating mines across the Americas, Africa, and Turkey - including ~15 years in rural Nevada. His executive background includes senior leadership at Kinross, Calibre Mining, and most recently as COO at Centerra Gold, where he oversaw safe operations, production growth, and sustainability initiatives. Notably in Nevada, he managed operations during the ~$375M Round Mountain Phase W expansion and led initial project development for the ~$250M Goldfield Project.
• Espell is a geologist and environmental manager with over 30 years’ experience across the Americas, Australia, Southeast Asia, and Africa. He has held senior roles at Homestake Mining, Barrick Gold, McEwen Mining, and American Vanadium, specializing in corporate environmental management, ISO 14001 systems, mine design, permitting, and regulatory compliance. His technical expertise focuses on permitting, and includes due diligence, mine closure planning, pit lake and geochemical studies, and waste management. Drawing on early experience at the Nevada Division of Environmental Protection, Ron is an expert in NEPA and BLM 3809 regulations.

J.T. Starzecki, Executive Chair, commented:

“We are very pleased to welcome David to Guardian Metal as COO. David brings a wealth of experience across mine development, construction and operations, particularly in Nevada, and his appointment comes at a pivotal time for the Company as we continue to build on the significant progress being made across both Pilot Mountain and Tempiute.

“I would also like to take this opportunity to formally introduce Ron as the Company’s Vice President, Environmental & Permitting, who has been instrumental in our permitting efforts to date. Ron’s substantial environmental and regulatory expertise, particularly within the state of Nevada, will continue to be critical as we advance our projects towards production.”