The board of directors of Southwest Gas Holdings, Inc. appointed Ruby Sharma to the Board to replace José A. Cárdenas effective August 9, 2022. Upon Ms. Sharma's appointment, Mr. Cárdenas' resignation became effective, as described in the company's Current Report on Form 8-K filed on May 10, 2022. In connection with her appointment, the Board has appointed Ms. Sharma to the Nominating and Corporate Governance and Compensation Committees of the Board.

Ms. Sharma is a multi-cultural, global business advisor with comprehensive expertise and skills in Strategy, Operational Risk Transformation, Mergers and Acquisitions, Governance, Audit and Accounting. Ms. Sharma has served as Managing Partner of RNB Strategic Advisors since September 2018. Ms. Sharma served as a Partner at Ernst & Young LLP (EY") from 2002 until her retirement in December 2017.

Prior to her time at EY, Ms. Sharma served as Senior Manager of Forensic and Litigation Services at Arthur Andersen LLP from 1999 to 2002. Ms. Sharma has led internal investigations, working with the U.S. Securities & Exchange Commission and other regulatory organizations on complex issues involving white-collar crime, Foreign Corrupt Practices Act, risk and damage assessments and accounting and financial issues. A frequent keynote speaker and panelist on corporate governance topics, Ms. Sharma has authored several audit committee handbooks and guides, as well as white papers on governance, value protection and diversity and inclusion topics.

She currently serves as a member of the board of directors of ShotSpotter, Inc., Nautilus, Inc. and Aspira Women's Health Inc. and as an advisory council member for reacHIRE. She previously served as the Chair of the Audit Committee at Penn Medicine Princeton Health, as a board trustee for the National Ascend Organization and a member of the Asia Society Business Council. Ms. Sharma is a Fellow Chartered Accountant (Institute of Chartered Accountants in England & Wales) and holds a Bachelor of Arts in Economics from Delhi University, India.

Ms. Sharma has also attended the Executive Education program for EY Partners at Northwestern University, Kellogg School of Management. The Board determined that Ms. Sharma qualifies as an independent director" for purposes of the New York Stock Exchange listing standards.