MasTec, Inc. (NYSE:MTZ) will release its third quarter financial results on Thursday, October 30, 2025 after the market close. In addition, MasTec's senior management will host a webcast to review these results on Friday, October 31, 2025, at 9:00 a.m. ET.

The event will be broadcast live and can be accessed through the MasTec Investor Relations website here and at www.mastec.com/investors/. 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 operating across a range of end markets. MasTec's primary activities include the engineering, building, installation, maintenance and upgrade of communications, energy and utility and other infrastructure, such as: power delivery services, including transmission and distribution, wireless, wireline/fiber and customer fulfillment activities; power generation, primarily from clean energy and renewable sources; pipeline infrastructure, including natural gas pipeline and distribution infrastructure; heavy civil; and industrial infrastructure. MasTec's customers are primarily in these industries. MasTec's corporate website can be accessed at www.mastec.com. MasTec's website should be considered as a recognized channel of distribution, and MasTec may periodically post important, or supplemental, information regarding contracts, awards or other related news and webcasts on the Investors tab of the website.

View source version on businesswire.com: https://www.businesswire.com/news/home/20251020617097/en/

Chris Mecray, VP-Investor Relations

917-517-3388

chris.mecray@mastec.com

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