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Ruth I. Dreessen

Former Managing Director
Lion Chemical Partners, LLC 

Director since 2018 

Ms. Dreessen has significant experience in the chemicals and energy business. From 2010 through 2018, she was managing director, Lion Chemical Partners, LLC, a private equity firm focused on chemical and related industries. 

Prior to joining Lion Chemical Partners, Ms. Dreessen served as the executive vice president and chief financial officer of TPC Group Inc., from 2005 to 2010. Before joining TPC Group, she served as senior vice president, chief financial officer and director of Westlake Chemical Corporation. Ms. Dreessen spent 21 years at JP Morgan Securities and predecessor companies, ultimately as a managing director of chemicals investment banking. 

Ms. Dreessen received a bachelor’s degree in European history from New College of Florida and a Master of International Affairs from Columbia University. 

Ms. Dreessen serves as chairperson of the board of directors of Gevo, Inc.