John D. Chandler, age 51, has served as an independent director of the Company since June 2017. Mr. Chandler retired from The Williams Companies, Inc. ("Williams”) on March 31, 2022. Prior to his retirement, Mr. Chandler was appointed as Senior Vice President and Chief Financial Officer for "Williams in 2017. Mr. Chandler has served as a director of USA Compression GP, LLC, the general partner of USA Compression Partners, LP, since October 2013; serving also as the audit committee chairman during his tenure. Mr. Chandler previously served on the board of directors and the audit committee of CONE Midstream GP, LLC, the general partner of CONE Midstream Partners LP, and on the board of directors and audit committee of Green Plains Holdings LLC, the general partner of Green Plains Partners LP. From 2009 until his retirement in March 2014, Mr. Chandler served as Senior Vice President and Chief Financial Officer of Magellan GP, LLC, the general partner of Magellan Midstream Partners, LP. (NYSE:MMP) From 2003 until 2009, he served in the same capacities for the general partner of Magellan Midstream Holdings, L.P. From 1999 to 2002, Mr. Chandler was Director of Financial Planning and Analysis and Director of Strategic Development for a subsidiary of Williams. From 1992 to 1999, Mr. Chandler held various accounting and finance positions with MAPCO Inc. Mr. Chandler received his B.S. and B.A. in accounting and finance from the University of Tulsa.

The specific experience, qualifications, attributes or skills that led to the conclusion Mr. Chandler should serve as a Director include his long history of service in senior corporate leadership positions, his extensive experience in the energy industry, his extensive financial oversight expertise and his understanding of complex financial matters gained from his experience as a CFO of a large publicly traded company.

John R. Hewitt, age 63, was appointed as President and Chief Executive Officer and as a director of the Company in May 2011. Mr. Hewitt has spent his entire career in the engineering, procurement, and construction industry. Prior to joining Matrix in May 2011, Mr. Hewitt worked for approximately 25 years for various operating businesses of Aker Solutions ASA (“Aker”) and its predecessor companies, which provide engineering and construction services, technology products, and integrated solutions to the energy and process industries worldwide. Up until his appointment with the Company, Mr. Hewitt served as Vice President of Aker Solutions, where he was responsible for providing executive oversight on major capital projects in the power and liquefied natural gas industries. He also served as President, United States Operations at Aker Solutions E&C US, Inc. from 2007 to 2009 where he was responsible for managing all construction services in North America. Prior to that, he served as President of Aker Construction Inc. where he had full profit and loss responsibility for a multi-disciplined direct hire industrial construction business operating throughout North America. Mr. Hewitt holds a finance degree from Stetson University and an engineering degree from the Florida Institute of Technology. Mr. Hewitt is a member of the board of directors of Junior Achievement of Oklahoma, the Tulsa Area United Way, the Tulsa Area Salvation Army and the Philbrook Museum of Art. Mr. Hewitt also serves as an executive board member of the Tulsa Regional Chamber of Commerce.

As the current President and CEO of the Company, Mr. Hewitt provides a management representative on the Board with extensive knowledge of day-to-day operations. As a result, he can facilitate the Board’s access to timely and relevant information and its oversight of management’s strategy, planning and performance. In addition, Mr. Hewitt brings to the Board considerable management and leadership experience, extensive knowledge of the energy industry and our business, and significant experience with mergers and acquisitions.

Martha Z. Carnes, age 61, has served as an independent director of the Company since July 2017. Ms. Carnes retired from PricewaterhouseCoopers LLP ("PwC") in June 2016, where she had a thirty-four year career with the firm. She was an assurance partner serving large, publicly traded companies in the energy industry. Ms. Carnes held a number of leadership positions with PwC including the Houston office Managing Partner. She also served as PwC's Energy and Mining leader in the United States where she led the firm's energy and mining assurance, tax, and advisory practices. Ms. Carnes also served as one of PwC's Risk Management Partners and was PwC's United States representative on the firm's Global Communities Board. She also serves on the Supervisory Board of Core Laboratories N.V., a Netherlands company that provides reservoir description and production enhancement services to the oil and gas industry, and is the Chairman of the Audit Committee. Effective September 1, 2017, Ms. Carnes was appointed to the board of directors of SunCoke Energy Partners GP LLC, the general partner of SunCoke Energy Partners LP. She serves on both the audit and conflicts committees. Ms. Carnes is the Chairman of the Governing Board of the Greater Houston Community Foundation, and has chaired their Compensation, Strategy, and Finance & Administration Committees. She is also a member of the Board of Trustees at Texas Children's Hospital where she serves on the Audit and Compliance; Operations, Planning and Development; and Risk Management and Insurance Committees. Ms, Carnes received her B.B.A. in accounting from the University of Texas at Austin and she is a certified public accountant.

The specific experience, qualifications, attributes or skills that led to the conclusion Ms. Carnes should serve as a Director include her extensive expertise in financial oversight, financial reporting and broad accounting knowledge gained from working with and auditing public companies in the energy industry and her operational and leadership experience at PwC.

Since April 2020 Mr. Conner has served as chief executive officer of Snowberry LLC and as senior advisor for Riverstone Holdings. He was president, chief executive officer, and a director of SemGroup Corp. (“SemGroup”), a company engaged in gathering, transportation, storage, distribution, marketing and other midstream services primarily in the U.S. and Canada, from April 2014 until January 2020. He also served as chairman of the board of directors, president and chief executive officer of the general partner of Rose Rock Midstream, L.P. (“Rose Rock”), a publicly traded master limited partnership and subsidiary of SemGroup, which owned and operated a diversified portfolio of midstream energy assets, from 2014 until September 2016, when SemGroup acquired all of Rose Rock. In 2000, he joined a subsidiary of Oiltanking GmbH (“Oiltanking”), an independent worldwide storage provider of crude oil, refined petroleum products and liquid chemicals. During his nearly 14 years with Oiltanking and its affiliates, he focused on international business development while serving in various leadership roles. From 2012 to 2014, Mr. Conner served as managing director of Oiltanking, and he served as chairman of the board of directors of the general partner of Oiltanking Partners, L.P., a publicly traded master limited partnership engaged in independent terminaling, storage and transportation of crude oil, refined petroleum products and liquefied petroleum gas, from 2011 to 2014. From 2012 to 2014, Mr. Conner also served as an executive board member of Marquard & Bahls, AG, the parent company of Oiltanking, where he was instrumental in defining a new strategy for the energy supply, trading, and logistics business across Europe, the Americas, Asia, and Africa.

Liane K. Hinrichs served as Senior Vice President, General Counsel and Corporate Secretary for McDermott International, Inc. (“McDermott”) until her retirement in 2017. McDermott is a global engineering, procurement, construction and installation firm serving the offshore oil and gas industry. From 1999 until 2008, Ms. Hinrich held positions of increasing responsibility at McDermott including Senior Counsel, Assistant General Counsel, Associate General Counsel, Corporate Compliance and Transactions, and Vice President, General Counsel and Corporate Secretary.

She received her juris doctorate degree from Tulane University School of Law in 1982 and a Master of Law in Securities Regulation from Georgetown University in 1989.

James H. Miller, age 66, has served as an independent director of the Company since May 2014. Mr. Miller is currently Executive Vice President - Americas of Kvaerner U.S., a position he has held since June 2011. He is also a Director and Officer for all Kvaerner U.S. based legal and operating entities. From June 2008 through June 2011, Mr. Miller served as Chief Executive Officer & President of Aker Philadelphia Shipyard. From June 2011 to April 2014, Mr. Miller also served as Chairman of the Board for Aker Philadelphia Shipyard ASA and reassumed that position in February 2016. Before going to the shipyard, Mr. Miller was President of Aker Solutions Process & Construction Americas. Prior to joining Aker Solutions Process & Construction Americas, Mr. Miller held the position of President of Aker Construction, Inc., which was one of the largest union construction companies in North America. Mr. Miller graduated from the University of Edinboro in Pennsylvania with a Bachelors of Arts degree.

Mr. Miller's extensive progressive leadership positions with a large multi-national industrial construction contractor led to the conclusion that Mr. Miller should serve as a Director. Mr. Miller has significant operational experience and a thorough understanding of the challenges and risks that face industrial construction contractors. He is experienced with merger and acquisition activity, partnering with other companies, and the management of large multi-year construction projects. Mr. Miller is also knowledgeable in many of the Company's key markets including power generation and iron and steel.