Centuri Holdings, Inc. (NYSE:CTRI) ("Centuri" or the "Company"), a leading, North American utility and energy infrastructure services company, today released its 2025 Sustainability Report (https://sustainability.centuri.com/), which details initiatives aligned to its recently released Vision One Centuri Strategy and progress against the Company’s 15 Key Performance Indicators (KPIs).

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Centuri releases its 2025 Sustainability Report

Centuri’s 2025 Sustainability Report highlights include:

Established an enterprise-wide Project Management Office for greater risk management and project discipline
Advanced key components of an enterprise-wide fleet strategy in support of the Company’s most critical physical asset
Achieved a 100% conversion rate from military internships to full-time employment
Graduated 78 apprentices from the Company’s signature Lineman Apprenticeship Program
Maintained industry-leading safety performance benchmarked against the Bureau of Labor Statistics (BLS) classification system
Completed more than 103 miles of electric infrastructure rebuild in support of grid hardening efforts in Texas
Launched four renewable natural gas projects, with two completed and two underway
Positively impacted local communities through $1 million in investment

"We are focused on sustainably scaling our business by investing in the people and processes that will strengthen our Company for the long-term. Our sustainability efforts emphasize strong governance and strategic activities that mitigate risk and ensure we can meet our diverse stakeholder expectations and customer needs for many years to come," said Centuri President and CEO Christian Brown. "Guided by our recently released Vision One Centuri Strategy, our team from the field to the highest leadership level is aligned on advancing key initiatives that allow us to sustainably grow and deliver on our stated objectives."

The 2025 report details Centuri’s investment in its people, protocols, safety programs, and partnerships. Further highlights include, onboarding more than 1,000 employees, investing significantly in leadership development, strengthening stakeholder outreach through dedicated forums, launching a standardized pre-job safety brief, updating the Delegation of Authority from its board of directors to management to further improve corporate governance and disciplined risk management, completing a third-party risk assessment to enhance the maturity of the Company’s risk management approach, and establishing an AI Steering Committee to guide adoption and implementation of next-generation technologies.

In addition, the 2025 report includes the Company’s Sustainability Accounting Standards Board (SASB) disclosure as well as alignment to six UN Sustainable Development Goals.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements can often be identified by the use of words such as "will," "predict," "continue," "forecast," "expect," "believe," "anticipate," "outlook," "could," "target," "project," "intend," "plan," "seek," "estimate," "should," "may" and "assume," as well as variations of such words and similar expressions referring to the future. The specific forward-looking statements made herein include (without limitation) statements regarding the Company’s sustainability efforts emphasizing strong governance and strategic activities that mitigate risk and ensure the Company can meet its diverse stakeholder expectations and customer needs for many years to come; and the Company, under the guidance of its Vision One Centuri Strategy, is aligned internally on advancing key initiatives that allow it to sustainably grow and deliver on its stated objectives. A number of important risks, uncertainties and other factors affecting the business and financial results of Centuri could cause actual results, performance or achievements to differ materially from any future results, performance or achievements expressed or implied by the forward-looking statements. These risks, uncertainties and other factors include, but are not limited to, capital market risks and the impact of general economic or industry conditions and those detailed from time to time in Centuri’s reports filed with the Securities and Exchange Commission (the "SEC"), including Item 1A. Risk Factors in our Annual Report on Form 10-K for the fiscal year ended December 28, 2025. Factors that could cause actual results to differ also include (without limitation) those discussed in Centuri’s filings filed from time to time with the SEC. The statements in this press release are (i) made as of the date of this press release, even if subsequently made available by Centuri on its website or otherwise, and (ii) based on assumptions and assessments made by our management in light of their experience and perceptions of historical trends, current conditions, expected future developments and other factors they believe to be appropriate. Except to the extent required by applicable law, Centuri does not assume any obligation to update or revise the forward-looking statements, whether written or oral, that may be made from time to time, whether as a result of new information, future developments, or otherwise. You are cautioned not to place undue reliance on these forward-looking statements.

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For Centuri Shareholders, contact:

Nate Tetlow

(480) 851-8426

Ntetlow@centuri.com

For Centuri media information, contact:

Jennifer Russo

(602) 781-6958

JRusso@Centuri.com