Leadership Team.

Douglas T. Dietrich has served as the Chief Executive Officer of Minerals Technologies since December 2016 and was elected Chairman of the Board in March 2021. He has 35 years of experience in industrial goods, mining, metals, and manufacturing.

Mr. Dietrich joined MTI in 2007 and has held numerous key management positions, including Chief Financial Officer, Senior Vice President - Finance and Treasury, and Vice President - Corporate Development and Treasury, leading corporate strategy and M&A initiatives.

Prior to his tenure at MTI, Mr. Dietrich held several positions of increasing leadership responsibility at Alcoa Inc. These roles included Vice President, Alcoa Wheel Products - Automotive Wheels; President, Alcoa Latin America Extrusions; General Manager, Global Rod and Bar Products; and Manager, Business Development and Strategic Global Sourcing - Asia and Latin America.

Earlier in his career, Mr. Dietrich worked for Eaton Corporation and Westinghouse Electric Corporation where he held various positions in engineering and operations management.

He holds a Bachelor of Science degree in Mechanical Engineering from the University of Michigan and an MBA in Finance from the Wharton School at the University of Pennsylvania.

Mr. Dietrich serves as a Director on the Board of Kennametal Inc. (NYSE:KMT) and is the chairman of the Penn Cultural Heritage Center at the University of Pennsylvania Museum of Archeology and Anthropology, where he is also a member of the Director’s Council.