SEC Form F-X filed by Cameco Corporation

This is [check one]

an original filing for the Filer

an amended filing for the Filer

Check the following box if you are filing the Form F-X in paper in accordance with Regulation S-T Rule 101(b)(9) ☐

333-283140

The Filer is incorporated or organized under the laws of Canada and has its principal place of business at

2121 – 11th Street West

Saskatoon, Saskatchewan

Canada S7M 1J3

(306) 956-6200

The Filer designates and appoints Cristina Giffin (“Agent”) located at

any investigation or administrative proceeding conducted by the Securities and Exchange Commission (“Commission”); and

any civil suit or action brought against the Filer or to which the Filer has been joined as defendant or respondent, in any appropriate court in any place subject to the jurisdiction of any state or of the United States or of any of its territories or possessions or of the District of Columbia, where the investigation, proceeding or cause of action arises out of or relates to or concerns any offering made or purported to be made in connection with the securities registered or qualified by the Filer on the Form F-10 filed on November 12, 2024 or any purchases or sales of any security in connection therewith. The Filer stipulates and agrees that any such civil suit or action or administrative proceeding may be commenced by the service of process upon, and that service of an administrative subpoena shall be effected by service upon, such agent for service of process, and that service as aforesaid shall be taken and held in all courts and administrative tribunals to be valid and binding as if personal service thereof had been made.

The Filer stipulates and agrees to appoint a successor agent for service of process and file an amended Form F-X if the Filer discharges the Agent or the Agent is unwilling or unable to accept service on behalf of the Filer at any time until six years have elapsed from the date the issuer of the securities to which such Forms and Schedules relate has ceased reporting under the Securities Exchange Act of 1934. The Filer further undertakes to advise the Commission promptly of any change to the Agent’s name or address during the applicable period by amendment of this Form, referencing the file number of the relevant form in conjunction with which the amendment is being filed.

The Filer undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission staff, information relating to the Form F-10, the securities to which the Form F-10 relates, and the transactions in such securities.