Business
Director Resignation
Arc Minerals Limited announced the resignation of non-executive director Brian McMaster, effective August 11, 2026, after serving on the board since August 1, 2017. The company acknowledged McMaster's significant contributions during its transition to a dedicated copper exploration focus. Disclaimer*
About this update from Arc Minerals Limited
11 August 2026 Arc Minerals Ltd ("Arc" or "the Company") Board Change Director Resignation Arc Minerals (LSE: ARCM), an exploration company focused on discovering and developing Tier 1 copper deposits in Africa, announces that Brian McMaster, a non-executive director, has resigned with effect from 11 August 2026. Brian joined the board of Arc on 1 August 2017. Nick von Schirnding, chairman of Arc, commented: "I would like to thank Brian for his services over the years as a valued member of the board. Brian played a key role particularly during the transformational years as Arc focused on becoming a dedicated copper play. We wish him every success going forward." For further information visit www.arcminerals.com or contact: Arc Minerals Ltd Rémy Welschinger, CEO E: [email protected] Zeus Capital Ltd Nominated Adviser & Joint Broker Katy Mitchell / Harry Ansell T: +44 (0) 20 3829 5000 Shard Capital Partners LLP Joint Broker Damon Heath T: +44 (0) 20 7186 9952 Notes Arc Minerals Ltd (LSE: ARCM) is an AIM-quoted copper exploration company focused on developing assets across two of Africa's most prospective copper belts. The Virgo Project, in Botswana, is situated in the Kalahari Copper Belt within the highly prospective MMG Zone 5 corridor. The Company also holds the Kabompo West Project in Zambia, located within the Western Domes of the Central African Copper Belt, host to multiple Tier 1 copper deposits. Arc is led by an experienced team with expertise across mining, capital markets and in-country operations. **ENDS**
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