Tetra Technologies, Inc.

Paul D. Coombs

Director

Mr. Coombs has served as a member of our Board of Directors since June 1994. He has served as a member of our Nominating and Corporate Governance Committee since July 2012 and as a member of our Audit Committee since May 2015. Mr. Coombs currently serves as a director of our CSI Compressco GP Inc. subsidiary, the general partner of CSI Compressco, also one of our consolidated subsidiaries and a publicly traded limited partnership subject to the reporting requirements of the Exchange Act. From April 2005 until his retirement in June 2007, Mr. Coombs served as our Executive Vice President of Strategic Initiatives, and from May 2001 to April 2005, as our Executive Vice President and Chief Operating Officer. From January 1994 to May 2001, Mr. Coombs served as our Executive Vice President - Oil & Gas, from 1987 to 1994 he served as Senior Vice President - Oil & Gas, and from 1985 to 1987, as General Manager - Oil & Gas. He has served in numerous other positions with us since 1982. Mr. Coombs is presently a director and serves on the audit and corporate governance committees of the board of directors of Balchem Corporation, a public company that is subject to the reporting requirements of the Exchange Act.