Audra B. Walsh

Ms. Walsh is a Professional Engineer with over 25 years of technical, operating, management and board experience in the mining industry. She currently serves as CEO of Minas de Aguas Tenidas S.A.U (MATSA), a Trafigura Mubadala mining company, located in the Huelva Province, Spain. She is a member of the Board of Directors of Orvana Minerals Corp. and is Chair of its Technical, Safety, Health, Environment and Sustainability Committee. She serves as President and CEO of A2Z Mining Inc. and was formerly President and CEO of Sierra Metals Inc. and Minera S.A. Ms. Walsh has also held senior positions with Barrick Gold Corporation and Newmont Mining Corporation. Ms. Walsh is a graduate with a Bachelor's of Science (Mine Engineering) from the South Dakota School of Mines and Technology in Rapid City, South Dakota and is a registered member of the Society of Mining, Metallurgy and Exploration.