Susan L. Main joined Ashland’s board in July 2017 and serves on the audit committee and the governance and nominating committee. Ms. Main served as the Senior Vice President and Chief Financial Officer of Teledyne Technologies Incorporated, a leading provider of advanced technology and high reliability products for the aerospace and defense, factory automation, air and water quality environmental monitoring, electronics design and development, oceanographic research, deepwater oil and gas exploration and production, medical imaging and pharmaceutical research markets, from 2012 to 2023. Prior to that, she was Vice President and Controller of Teledyne, a position she held for eight years. From 1999 to 2004, Ms. Main served as Vice President and Controller for Water Pik Technologies, Inc. She also held numerous financial roles at the former Allegheny Teledyne Incorporated in its government, industrial and commercial segments. Earlier in her career, Ms. Main held financial and auditing roles at the former Hughes Aircraft Company. She is a graduate of California State University, Fullerton.