David L. King, Chairman, Interim President and Chief Executive Officer

Mr. King was named Interim Chief Executive Officer in March 2025. He has served as our Chairman since May 2019 and as one of our Directors since May 2015. Mr. King previously held the roles of President and Chief Executive Officer from 2015-2019 and Executive Vice President, Chief Operating Officer from 2014-2015.

Mr. King has extensive engineering, procurement, fabrication, and construction experience in energy-related projects, including liquified natural gas, pipeline, refining, gas processing, petrochemicals, synthesis gas, and gas-to-liquids. Prior to joining Primoris, he held several leadership positions with Chicago Bridge & Iron, which was acquired by McDermott International.

Mr. King is Directorship Certified by the National Association of Corporate Directors. He received a Bachelor of Science in Mechanical Engineering from Texas Tech University, a Master of Business Administration from the University of Texas, and an Advanced Executive Management Degree from the Institut Européen d'Administration des Affaires in France.

Michael E. Ching, Director

Michael E. Ching has over 35 years of experience in the investment banking and technology industries. He has served as the head of Evaluserve’s Investment Research practice since January 2022. Evaluserve is a leading global firm empowering its clients with AI-driven products and solutions. Its investment research business provides leading sell-side and buy-side research organizations with advanced digital platforms and global talent. From 2002 to 2019, he served as Managing Director and Deputy Head of Equities Research at UBS, where he helped manage a department of 150 equity research analysts and associates. Prior to that, Mr. Ching served as a ranked technology analyst at Merrill Lynch. He also worked at Bell Laboratories for nearly ten years as a District Manager and systems engineer focusing on data and fiber optic networks. He holds an M.B.A. from The Wharton School of the University of Pennsylvania, an M.S. in Electrical Engineering from Stanford University, and a B.S. in Electrical Engineering from Rutgers University.

Carla S. Mashinski, CPA, Director

Carla Mashinski was appointed a Director on March 25, 2019. Since July 2015, Ms. Mashinski has served as Chief Financial Officer of Cameron LNG, a natural gas liquefaction terminal near the Gulf of Mexico, effective February 2017, her title was expanded to Chief Financial and Administrative Officer. From 2014 to July 2015, she served as Chief Financial Officer and Vice President of Finance and Information Management for the North America Operation of SASOL, an international integrated energy company. From 2008 to 2014, Ms. Mashinski was employed by SBM Offshore, Inc., a provider of leased floating production systems for the offshore energy industry, serving as Vice President of Finance and Administration, U.S. Chief Financial Officer from 2008 to February 2014, and as Commercial and Contracts Manager from February to August 2014. She served as Vice President and Chief Accounting Officer and Controller of Gulfmark Offshore from 2004 to 2008. Prior to that, Ms. Mashinski held various finance and accounting positions for Duke Energy (1999-2004) and Shell Oil Company (1985-1998) or its affiliated companies. Ms. Mashinski is a certified public accountant, certified management accountant, and a certified project management professional with a B.S. degree in accounting from the University of Tennessee, Knoxville and an Executive M.B.A. from the University of Texas, Dallas.

Recognized as NACD Directorship Certified by the National Association of Corporate Directors, Ms. Mashinski previously served on the board of Unit Corporation (NYSE:UNT), a U.S. based energy company engaged in oil and gas exploration and production, contract drilling, and gas gathering and processing. Ms. Mashinski also served on the board of CARBO Ceramics (OTCQB:CRRT), a global technology company that provides products and services to the oil & gas and industrial markets.

Terry D. McCallister, Lead Independent Director

TERRY D. MCCALLISTER was appointed Lead Independent Director on April 30, 2025. Mr. McCallister has served as a Director since July 1, 2020. He has a forty-year history in nearly all aspects of the energy sector, including utilities, pipelines, clean energy, and exploration and production endeavors. He was Chairman and Chief Executive Officer of WGL Holdings, Inc. and Washington Gas from 2009 until his retirement in 2018. Prior thereto, Mr. McCallister served as President and Chief Operating Officer of WGL and Washington Gas, joining Washington Gas in 2000 as Vice President of Operations. He has also held various leadership positions with Southern Natural Gas and Atlantic Richfield Company. Mr. McCallister has a B.S. in Engineering Management from the University of Missouri-Rolla and is a graduate of the University of Virginia's Darden School of Business Executive Program.

Mr. McCallister currently serves on the Board of AltaGas Ltd. (TO: ALA), where he is a member of the Environment, Health, and Safety committee. His Board experience includes serving as the Chair of WGL Holdings prior to its being acquired in 2018. He has served on the National Petroleum Council, the American Gas Association, the Gas Technology Institute, and the Southern Gas Association and is a member of the Institute of Corporate Directors.

Jose R. Rodriguez, CPA, Director

JOSE RODRIGUEZ has served as one of our Directors since May 2021. He is a retired senior audit partner from KPMG, where he served for over 25 years. During his career at KPMG he held various leadership positions, which included serving on its board of directors and as lead director; chief operating officer of KPMG International’s global audit practice; office managing partner; leader of its Audit Committee Institute (ACI); east region professional practice partner and most recently ombudsman. As an audit partner, Mr. Rodriguez had extensive experience with large multinational companies and mid-size private and publicly held companies, with primary emphasis on industrial manufacturing; consumer markets (retail, automotive, and distribution concerns); pharmaceuticals; agribusiness; oil and gas and mergers and acquisitions. Additionally, Mr. Rodriguez is a NACD Fellow and has been included in NACD’s D-100 list, which recognizes the most influential people in and around the boardroom.

Mr. Rodriguez currently serves on the Board of CareMax, Inc (Nasdaq:CMAX) since June 2021, where he is Chair of the Board, Chair of the Audit committee and a member of the Compliance committee. Mr. Rodriguez also currently serves on the Board of Popular, Inc (Nasdaq:BPOP) since June 2021, where he serves on the Audit committee and Risk committee.

Mr. Rodriguez serves on the board of trustees of Marymount University; board of directors of Latin Corporate Directors Association (first Vice Chair), SECU Family House (Chair), the North Carolina Association of CPAs (Chair-elect), the Dean’s Advisory Council at the University of Miami Herbert School of Business (Chair) and the Business School Advisory Board at Wake Forest University. He is a certified public accountant (licensed in FL, NC and NY). Mr. Rodriguez received a B.B.A with a major in accounting from the University of Miami.

Harpreet Saluja, Director

HARPREET SALUJA was appointed a Director on April 30, 2025. Ms. Saluja has more than 30 years of experience in strategy, business development and M&A roles at leading global organizations. In 2024, she joined Ecolab (NYSE: ECL), a global sustainability leader offering water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. As executive vice president of Corporate Strategy & Business Development, she is responsible for the company’s new business ventures, M&A and business development activities. From 1998 to 2024, Ms. Saluja held executive roles in Corporate Development & Planning at Eaton (NYSC: ETN), a global power management company focused on electrical, aerospace and vehicle end markets. From 2013 to 2024, she was senior vice president and led the company’s corporate strategy and global M&A function. From 1995 to 1998, she performed international business development and integration roles for Tenneco Automotive, a global tier one automotive supplier.

Ms. Saluja holds an M.B.A. from the University of Michigan, a Bachelor of Law and Bachelor of Arts degree in mathematics and psychology from Punjab University in India. She serves as an Independent Trustee of First American Funds, an affiliate of US Bancorp.

John P. Schauerman, Director

JOHN P. SCHAUERMAN was appointed a Director on November 15, 2016. He served as the Company’s Executive Vice President of Corporate Development from February 2009 to December 2012, and was responsible for developing and integrating Primoris’ overall strategic plan, including the evaluation and structuring of new business opportunities and acquisitions. Prior to that, Mr. Schauerman served as our Chief Financial Officer from February 2008 to February 2009. He also served as a director of the Company from July 2008 to May 3, 2013 and as a director of its predecessor entity, ARB, Inc. (“ARB”) from 1993 to July 2008. Mr. Schauerman joined ARB in 1993 as the Company’s Senior Vice President. Previously, he served as Senior Vice President of Wedbush Morgan Securities, Inc., a regional investment bank focused on financing activities for middle market companies (n/k/a Wedbush Securities, Inc.). Mr. Schauerman has served on the Board of Directors of Synalloy Corporation (Nasdaq: SYNL) since June 2020. Mr. Schauerman also served on the Boards of Directors of MYR Group (Nasdaq: MYRG) from March 2016 through November 2016; Harmony Merger Corp. (Nasdaq:HRMNU), a blank check investment company, from March 2015 through July 2017, Allegro Merger Corp (Nasdaq:ALGR), a blank check investment company from July 2018 through present, and Wedbush Securities, Inc., a leading financial services and investment firm, from August 2014 through February 2018. Mr. Schauerman is a member of the Dean’s Executive Board of the UCLA School of Engineering. Mr. Schauerman holds an MBA in Finance from Columbia University, New York, and a B.S. in Electrical Engineering from the University of California, Los Angeles.

Patricia (Patti) K. Wagner, Director

PATRICIA (PATTI) K. WAGNER was appointed a Director on July 1, 2020. Ms. Wagner has over thirty years of experience in the utility and industrial markets, with leadership experience at both the corporate and operating subsidiary level. She was Group President of U.S. utilities for Sempra Energy (NYSE: SRE) until her retirement in 2019. Her career with Sempra spanned nearly twenty-five years and included such leadership roles as Chief Executive Officer of SoCal Gas and Chief Executive Officer of Sempra U.S. Gas & Power, which included Sempra’s renewable energy infrastructure portfolio along with other infrastructure assets. She also held leadership roles in accounting, information technology, and audit. Prior to her time at Sempra, she held positions at Fluor, Allergan Pharmaceuticals, and American McGaw.

Ms. Wagner currently serves on the Boards of Apogee Enterprises, Inc. (NASDAQ: APOG), where she is the chair of the Compensation committee, and of California Water Service Group (NYSE: CWT), where she is a member of the Audit and Nominating & Governance committees. Ms. Wagner holds a B.S. in Chemical Engineering from California Polytechnic State University and an M.B.A. from Pepperdine University.

For recent transactions, including derivative transactions, see our Section 16 SEC filings page.