Cardinal Infrastructure Group Inc. – Indentures Watch

from S-8 22 pages Amended and Restated Bylaws of Cardinal Infrastructure Group Inc. Date of Adoption: December 9, 2025 Article 1 Offices and Records

from S-8 19 pages Amended and Restated Certificate of Incorporation of Cardinal Infrastructure Group Inc

from S-1/A 2 pages 0000001 See Reverse for Important Notice Regarding Ownership and Transfer Restrictions and Certain Other Information Cusip Xxxxxx XX X See Reverse for Certain Definitions Incorporated Under the Laws of the State of Delaware Class a Common Stock Secretary Chief Executive Officer Specimen Fully Paid Class a Common Stock of $0.0001 Par Value, of Cardinal Infrastructure Group Inc. Transferable on the Books of the Company in Person or by Duly Authorized Attorney, Upon Surrender of This Certificate Properly Endorsed . This Certificate and the Shares Represented Hereby Are Issued and Shall Be Held Subject to All of the Provisions of the Certificate of Incorporation, as It May Be Amended, of the Company (Copies of Which Are on File With the Company and With the Transfer Agent), to All of Which Each Holder, by Acceptance Hereof, Assents . This Certificate Is Not Valid Unless Countersigned and Registered by the Transfer Agent and Registrar . in Witness Whereof, the Facsimile Seal of the Company and the Facsimile Signatures of Its Duly Authorized Officers . XX XX

from S-1 25 pages Registration Rights Agreement