John Themig is an experienced operations manager with a strong background in the mining and aggregates industry. Currently serving as a Senior Area Operations Manager at Amrize since November 2023, John has previously held similar positions at HolcimUS and Heidelberg Materials North America, where John excelled as Head of Operational Excellence. John's extensive career includes roles at Lehigh Hanson as Director of Business Improvement for Aggregates & Asphalt, as well as positions focusing on plant management and continuous improvement across various organizations. John's foundational education in Mining Engineering from the Missouri University of Science and Technology has contributed to a comprehensive skill set in operational management, safety, and production efficiency.
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