Management Change/Compensation (Form 8-K)

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Appointment of Director

On March 12, 2026, the Board of Directors of Cardinal Infrastructure Group Inc. (the "Company") appointed Anthony L. Wood, the President of A.L. Grading Contractors, LLC ("ALGC"), which was acquired by the Company on February 18, 2026, to serve on the Company's Board of Directors to hold office until the Company's 2026 annual meeting and until his successor is duly elected and qualified or until his earlier resignation, removal, incapacity or death.

The information required under Item 5.02 of Regulation S-K with respect to the appointment of Anthony L. Wood was contained in the Current Report on Form 8-K filed by the Company on February 18, 2026 with respect to the acquisition of ALGC and is incorporated by reference herein.

Appointment of Chief Operating Officer

On March 12, 2026, the Board of Directors of the Company appointed Benjamin A. Wood, the vice president of ALGC, as the Company's Chief Operating Officer to serve until his successor shall have been duly elected or appointed and shall have qualified or until his earlier death, resignation or removal.

The information required under Item 5.02 of Regulation S-K with respect to the appointment of Benjamin A. Wood was contained in the Current Report on Form 8-K filed by the Company on February 18, 2026 with respect to the acquisition of ALGC and is incorporated by reference herein.