MasTec, Inc. (NYSE:MTZ) today announced that Mr. Alex Spiro has joined MasTec’s Board of Directors as a Class III Director.

Mr. Spiro has spent more than a decade advising Fortune 500 companies and their chief executives on high-priority matters, including regulatory investigations, corporate governance, securities issues, complex litigation and strategic business transactions.

Beyond his legal practice, Mr. Spiro is an active investor, advisor and public company director with experience across the energy, mining and technology sectors. Mr. Spiro’s qualifications to serve on our Board include his broad experience advising companies operating in highly regulated industries, his public company governance experience, and his insight into complex business, legal and strategic issues.

Mr. Spiro currently serves on the Board of Directors at TMC the metals company Inc. (Nasdaq: "TMC"), and CleanCore Solutions, Inc. (NYSE: "ZONE").

Mr. Spiro holds a law degree from Harvard Law School. In addition, Mr. Spiro has served on the faculty of Harvard’s Trial Advocacy Program, as a lecturer at Harvard Law School, and Chairman of the Board of Harvard's criminal justice initiative - The Fair Punishment Project. He also serves as Counsel to the Reform Alliance.

MasTec’s Chairman, Mr. Jorge Mas, commented, "Alex brings a unique combination of legal, governance, capital markets and strategic advisory experience developed through years of advising leading companies and executives on their most important business and regulatory matters. His perspective as an investor, public company director and trusted advisor across the energy, technology and industrial sectors will be a valuable addition to our Board as MasTec continues to execute on its long-term growth strategy. We are very pleased to welcome Alex to our Board."

Mr. Spiro noted, "I am honored to join MasTec’s Board of Directors, one of the preeminent infrastructure companies in North America. MasTec has established an impressive track record of growth and execution across critical infrastructure markets. I look forward to contributing as the Company pursues its significant opportunities for continued growth."

About MasTec

MasTec, Inc. is a leading North American infrastructure engineering and construction company focused primarily on engineering, building, installation, maintenance and upgrade of communications, energy and utility and other infrastructure. MasTec primarily operates under four business segments including Communications, serving both wireless and wireline/fiber infrastructure; Power Delivery, serving primarily utility customers in transmission and distribution markets; Pipeline Infrastructure serving energy and other customers with installation and maintenance services primarily for natural gas pipeline and distribution infrastructure; and Clean Energy and Infrastructure, providing renewable energy engineering and construction services, as well as for heavy civil and other industrial infrastructure markets. Learn more at www.mastec.com

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J. Marc Lewis, Investor Relations

305-406-1815

marc.lewis@mastec.com