<div id="readability-page-1"><article><div>, /PRNewswire/ -- Cardinal Infrastructure Group, Inc. (NASDAQ: CDNL) (&#34;Cardinal&#34; or the &#34;Company&#34;) today announced that it will be added to the Russell 2000® and Russell 3000® Indexes, as part of FTSE Russell's first quarter Initial Public Offering (IPO) addition, effective March 23, 2026.<img src="https://imageproxy.pbkrs.com/https://mma.prnewswire.com/media/2842252/CIG_Logo.jpg?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" width="400" height="224" original-src="https://imageproxy.pbkrs.com/https://mma.prnewswire.com/media/2842252/CIG_Logo.jpg"/>&#34;Joining the Russell indexes is a meaningful milestone as we continue building Cardinal's presence in the public markets,&#34; said Jeremy Spivey, Cardinal's Chairman and Chief Executive Officer. &#34;We look forward to expanding our reach with a broader set of investors as we execute on our growth strategy.&#34;The Company's inclusion in the Russell 2000® Index as well as the broader Russell 3000® Index provides Cardinal with increased visibility within the institutional investor community. Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies.For more information on the Russell Indexes and the Russell indexes quarterly updates for IPOs, visit www.ftserussell.com.About Cardinal Cardinal Infrastructure Group (NASDAQ: CDNL) is one of the Southeast's fastest-growing, full-service infrastructure service providers. The Company delivers integrated civil and site development solutions across high growth markets through a self-performing model supported by skilled labor, specialized fleets and market leading subsidiaries. This model enables efficient, turnkey project execution at scale while maintaining focus on building long-term client relationships. Cardinal's strategy is grounded in operational discipline, market expansion and a commitment to integrity from the ground up. About FTSE Russell, an LSEG Business FTSE Russell is a global index leader that provides innovative benchmarking, analytics and data solutions for investors worldwide. FTSE Russell calculates thousands of indexes that measure and benchmark markets and asset classes in more than 70 countries, covering 98% of the investable market globally. FTSE Russell index expertise and products are used extensively by institutional and retail investors globally. Approximately $18.1 trillion is benchmarked to FTSE Russell indexes. Leading asset owners, asset managers, ETF providers and investment banks choose FTSE Russell indexes to benchmark their investment performance and create ETFs, structured products and index-based derivatives. A core set of universal principles guides FTSE Russell index design and management: a transparent rules-based methodology is informed by independent committees of leading market participants. FTSE Russell is focused on applying the highest industry standards in index design and governance and embraces the IOSCO Principles. FTSE Russell is also focused on index innovation and customer partnerships as it seeks to enhance the breadth, depth and reach of its offering. FTSE Russell is wholly owned by London Stock Exchange Group.Forward-Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements about the Company's future performance. Statements that are predictive in nature, that depend upon or refer to future events or conditions or that include the words &#34;may,&#34; &#34;could,&#34; &#34;plan,&#34; &#34;project,&#34; &#34;budget,&#34; &#34;predict,&#34; &#34;pursue,&#34; &#34;target,&#34; &#34;seek,&#34; &#34;objective,&#34; &#34;believe,&#34; &#34;expect,&#34; &#34;anticipate,&#34; &#34;intend,&#34; &#34;estimate,&#34; and other expressions that are predictions of or indicate future events and trends and that do not relate to historical matters identify forward-looking statements. These statements involve risks and uncertainties and Cardinal's actual results could differ materially from the results expressed or implied by such forward-looking statements. The potential risks, uncertainties and other factors that could cause actual results to differ from those expressed by the forward-looking statements in this press release include, but are not limited to, difficulty in sustaining rapid revenue growth, which may place significant demands on Cardinal's administrative, operational and financial resources, fluctuations in Cardinal's revenue and the concentration of Cardinal's business in the Southeastern United States. Cardinal has based these forward-looking statements largely on its current expectations and projections regarding future events and trends that it believes may affect its business, financial condition and results of operations. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties and other factors described in the section entitled &#34;Risk Factors&#34; in Cardinal's Registration Statement on Form S-1 (333-292034) (the &#34;Registration Statement&#34;), and elsewhere in the Registration Statement. Accordingly, you should not rely upon forward-looking statements as predictions of future events. Cardinal cannot assure you that the results, events and circumstances reflected in the forward-looking statements will be achieved or occur, and actual results, events or circumstances could differ materially from those projected in the forward-looking statements. Although forward-looking statements reflect the good faith beliefs of Cardinal's management at the time they are made, forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause actual results, performance or achievements to differ materially from anticipated future results, performance or achievements expressed or implied by such forward-looking statements. Cardinal undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise, unless required by law. These cautionary statements qualify all forward-looking statements attributable to Cardinal or persons acting on its behalf.SOURCE Cardinal Infrastructure Group Inc.</div></article></div>

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Cardinal Infrastructure Group, Inc. (NASDAQ: CDNL) will be added to the Russell 2000® and Russell 3000® Indexes effective March 23, 2026. This inclusion marks a significant milestone for the company, enhancing its visibility among institutional investors. CEO Jeremy Spivey expressed optimism about expanding their investor base and executing growth strategies. FTSE Russell, which manages the indexes, is a leader in global indexing, with approximately $18.1 trillion benchmarked to its indexes. The announcement includes forward-looking statements regarding Cardinal's future performance and associated risks.

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Cardinal Infrastructure Group to be Added to the Russell 2000® and 3000® Indexes | CDNL Stock News