Board of Directors

Ms. Twitchell holds a Bachelor of Arts in Economics from Wellesley College and a Master of Business Administration from Harvard University. She has over 35 years of experience in financial management, including financings and capital structures, mergers and acquisitions, investor relations, accounting matters and enterprise risk management. Ms. Twitchell serves on the public company boards of KMG Chemicals, Inc. and Kraton Corporation. From 2010 until her retirement in 2013, Ms. Twitchell served as the Executive Vice President and Chief Financial Officer of Landmark Aviation, where she was responsible for all financial and strategic planning functions. Previously she was Vice President and Treasurer of LyondellBasell Industries and Lyondell Chemical Company from 2001 to 2009. Prior to that she was Vice President and Treasurer of Kaiser Aluminum Corporation and Southdown, Inc., and she began her career as an investment banker with Credit Suisse First Boston. Ms. Twitchell brings important experience to the Board in accounting matters, financings and capital structure, merger and acquisition transactions, investor relations and enterprise risk management.

Executive Chairman of the Board, was previously the non-executive Chairman of the Board from July 2015 until March 2018 and President and Chief Executive Officer of the Company from July 2009 until his retirement in July 2015. Mr. Carter was temporarily appointed to the position of Executive Chairman in March 2018 to serve through the end of 2018, or earlier, if agreed to by the Company and Mr. Carter. He is a 1975 graduate of Lamar University with a Bachelor of Business Administration in Accounting. He worked at the Sabine River Authority of Texas as a Project Accountant from 1973 to 1975. From 1975 to 1977 he was a Staff Accountant with Wathen, DeShong and Company, CPA's. From 1977 until 2015 Mr. Carter had been employed by the Company in a succession of positions with increasing and broader operating responsibilities, as follows; 1977 to 1979, Controller of SHR; 1979 to 1982, Facility Manager at a ship dock and terminal facility owned by TOCCO; 1982 to 1987, Treasurer of TOCCO; 1987 to 2013, President of SHR; and 2007 to 2009, Executive Vice President of the Company. This succession of positions with the Company gave Mr. Carter broad experience and knowledge in operations, finances and strategy of the Company. Mr. Carter serves as a Director and President of PEVM of which the Company owns 55% of the outstanding stock. Mr. Carter was appointed to the Board of AMAK in February 2009. We believe that his experience with the Company provides a wealth of knowledge to our Board.

Mr. Adams holds a Bachelor of Science in Industrial Management from the University of Arkansas and has over 40 years of experience in the petrochemical and plastics industries. He started his chemical industry career with Union Carbide and after 15 years serving in a number of positions at Union Carbide, Mr. Adams joined Chemical Market Associates Inc. ("CMAI"). He began at CMAI as the director of the Monomers Market Advisory Service and progressed to President, CEO and Chairman of the Board from 1997 until its acquisition by IHS in 2011. Mr. Adams served as the Chief Advisor - Chemicals for IHS Market until April 1, 2017. Mr. Adams is a director of Phillips 66 and previously served on the boards of Westlake Chemical Partners LP and Phillips 66 Partners LP from 2013 to 2016. We believe that his knowledge of the global chemical market provides a critical resource to our Board.

Ms. Butcher joined the Trecora Resources Board in 2016. She was the CEO, President and Chief Operating Officer of Pilot Chemical Corp. from January 2010 through January 2021, when, after having led a decade of significant revenue and profit growth, she retired. Previously, she worked 29 years for The Dow Chemical Company where she held a variety of executive leadership positions including Business Vice President of Specialty Chemicals, Vice President of Corporate Marketing & Sales and Vice President and General Manager of Adhesives and Sealants. She was a distinguished recipient of Dow's Genesis Award for people excellence, which is Dow's highest recognition for people leadership. She currently serves as a director on the boards of Pilot Chemical Corp. and PDC Energy and is a member of the US Bank Regional Advisory Board. Previously, she served as a director on the Board of Gruden Topco Holdings, LP/Quality Distribution, Inc. (a private equity firm). As an active leader in the Chemical Industry, she was a past president of the board of trustees for the Chemical Educational Foundation, and on the Boards of the American Cleaning Institute and the Ohio Manufacturers' Association. Her broad knowledge of the chemical industry provides a valuable resource to our Board. Ms. Butcher holds a bachelor’s degree in Agronomy and a Master of Science Degree from Purdue University. In addition, she is a graduate of the Northwestern University Marketing Executive Program and has participated in the Prince of Wales Sustainability Conference and the Asian Master Class on Asian Business. She is a member of the National Association of Corporate Directors and has completed the Director Professionalism Class.

Mr. Peakes has more than 20 years of finance and investment banking experience in various natural resources industries including his current role as Chief Financial Officer for Noble Corporation, where he is responsible for the accounting, treasury, tax, financial planning, mergers and acquisitions and investor relations teams globally for this publicly-traded oil and gas drilling contractor. Prior to Noble, Mr. Peakes spent 17 years as an investment banker with Tudor Pickering Holt & Co. and Goldman Sachs specializing in mergers and acquisitions, debt and equity financings and strategic advisory assignments for companies in the oilfield services and global natural resources sectors. He holds a Bachelor of Arts degree from Rice University and a Masters in Business Administration from Harvard Business School.

Ms. Roemer brings more than 30 years of industry experience including executive leadership roles in global petrochemicals and biochemicals. After starting her career as a chemist with National Starch & Chemical, she had a 24 year career with Amoco and BP Group where she held a wide variety of positions with increasing responsibilities, including General Manager, Vice President Digital Business, Business Unit Leader and Chief of Staff to the CEO of Innovene. She most recently served as Chief Operating Officer of Verenium Corporation. Ms. Roemer has a breadth of operational experience including leadership roles in sales and marketing, customer service and logistics, strategic planning, manufacturing, capital projects, R&D and IT. Ms. Roemer holds a Bachelor of Science degree in Chemistry from Miami University and a Masters of Business Administration from the University of Chicago.