Advanced Emissions Solutions, Inc. appointed Jeremy "Deke" Williamson as Chief Operating Officer effective September 18, 2023. Mr. Williamson is the former Senior Vice President of Production and Distribution Operations at Hi-Crush, Inc., a fully integrated provider of proppant and logistics services for hydraulic fracturing operations. While at Hi-Crush, Williamsons responsibilities largely revolved around managing multiple mining operations, strategic planning, and assisting the research and development teams. Prior to joining Hi-Crush in 2011, Williamson was the Plant Manager at Southeast Missouri Stone, a leader in infrastructure construction and maintenance.

Williamson holds a BS in Business Management and MBA from the University of Phoenix.