MasTec, Inc. (NYSE:MTZ) will release its third quarter financial results on Thursday, October 29, 2026, after the market close. In addition, MasTec’s senior management will host a webcast to review these results on Friday, October 30, 2026, at 9:00 a.m. ET.

The event will be broadcast live and can be accessed through the MasTec Investor Relations website at https://investors.mastec.com/events-presentations/events. A replay link, along with the earnings release and supporting materials, will also be posted to the website.

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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Ati Modak, Vice President-Investor Relations

305-507-7304 | ati.modak@mastec.com