Gregory Thies is a seasoned professional in metallurgy and process engineering, currently serving as General Manager at The Doe Run Company since December 2021. Previously, Gregory held the position of Process Manager at Argonaut Gold Inc. from October 2019 to October 2021. An extensive tenure at Newmont Mining Corporation from March 2005 to September 2019 includes roles such as Process Operations Superintendent, Chief Metallurgist, General Foreman, Metallurgist, and Refinery Foreman. Gregory earned a Bachelor of Science degree in Metallurgical Engineering from South Dakota Mines between 1994 and 2003.
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