Walter Keller

Walter Keller serves as the Chief Financial Officer at Advancion Corporation, a position held since October 2024. Previously, Walter held similar roles at Ascensus Specialties from April 2023 to October 2024 and at SACHEM, Inc. from November 2016 to April 2023. Walter's extensive experience at Celanese from July 2007 to November 2016 included titles such as CFO Acetyl Chain, VP Global BP&A, and various director roles focused on business planning and analysis. Walter began a career in finance at Arthur Andersen and Hoechst/Food Ingredients, holding managerial and controller positions. Walter completed a degree in Industrial Engineering, with a focus on Mechanical Engineering and Finance, from Technische Hochschule Mittelhessen between 1987 and 1992.