determining the corporation's direction and character by approving its vision, mission and values and making decisions and establishing guiding principles which set the tone and direction for the company; and

Election of Directors
Each director is elected individually by the shareholders each year at the annual meeting, provided the board may, in accordance with the articles of the corporation, appoint additional directors, from time to time, between annual shareholder meetings who will serve until the next annual meeting of shareholders.

In an uncontested election, any nominee for director who receives more "withheld" votes than "for" votes will tender his or her resignation for consideration by the nominating, corporate governance and risk committee. The nominating, corporate governance and risk committee will review the matter and make a recommendation to the board whether to accept the director's resignation. The board will publicly disclose its decision to accept or reject the resignation within 90 days of the shareholders' meeting, including the reasons for rejecting the resignation, if applicable. The director who has tendered his or her resignation pursuant to this policy will not participate in any deliberations of the nominating, corporate governance and risk committee or the board regarding the resignation. If a resignation is accepted, the board may appoint a new director to fill the vacancy created thereby.

Following the annual meeting of shareholders in May 2010 the board will consist of 12 members. Cameco's nominating, corporate governance and risk committee annually assesses the size of the board and its composition to determine whether it has all the necessary constituents for effective decision making. In accordance with the articles of incorporation, the board shall not exceed 15 members.

The board will have a non-executive, independent director as chair.

The nominating, corporate governance and risk committee is responsible for maintaining a board succession plan that is responsive to the corporation's needs and the interests of shareholders. It is also responsible for maintaining a matrix of director talent and board requirements in order to identify possible skill gaps on the board.

The board does not believe it should establish term limits. While term limits could help ensure that there are fresh ideas and viewpoints available to the board, they hold the disadvantage of losing the contribution of directors who have been able to develop, over a period of time, increasing insight into the corporation and its operations and, therefore, provide an increasing contribution to the board as a whole.

The retirement age for board members is 72 years, which limit can be extended at the discretion of the board.

The share ownership guidelines established by the board call for each director to own and maintain during his or her term on the board, common shares or deferred share units equal in value to three times his or her annual retainer within, the later of, five years of joining the board or January 1st, 2010. And by the later of, five years of being appointed to an executive position or January 1st, 2010, each executive is to own and maintain during his or her employment, common shares of Cameco Corporation equal in value to the following amount:

(i) Chief Executive Officer – four times base salary
(ii) Senior Vice-Presidents – two times base salary
(iii) Vice-Presidents – one times base salary

The primary responsibility of individual directors is to act in good faith and to exercise their business judgment in what they reasonably believe to be the best interests of the Corporation. In order to fulfill this responsibility, each director is expected to:

Each director is expected to attend all meetings of the board and any committee of which he or she is a member, and the annual meeting of shareholders. A director who is unable to attend a board or committee meeting in person may participate by telephone or teleconference.

Management is responsible for development of a strategic plan which is presented annually to the board for approval. At least once a year, the board holds a special meeting to specifically discuss strategic planning and strategic issues. In its deliberations, the board also discusses and assesses the principal risks of Cameco's business.

The nominating, corporate governance and risk committee ensures Cameco has an effective enterprise risk management system. Through its enterprise risk management system, management reports on the principal business risks facing Cameco to the nominating, corporate governance and risk committee and the board. Also, the reserves oversight committee, audit committee and safety, health and environment committee each monitor those risks associated with their areas of oversight.

The board has adopted a position description for the chair of the board, which sets out the duties and responsibilities of the chair of the board. This position description (attached as Appendix B to these guidelines) will be reviewed from time to time.

Directors have access to members of management and are encouraged to raise any questions or concerns directly with management. The board and its committees may invite any member of management, outside advisor or other person to attend any of their meetings.

The board and any of its committees may retain an outside advisor at the expense of the corporation at any time and have the authority to determine the advisor's fees and other retention terms. Individual directors may retain an outside advisor at the expense of the corporation with the approval of the nominating, corporate governance and risk committee or the chair of the board.

A director's manual is provided to all directors, which is updated from time to time. New board members attend a formal directors' orientation program. There is an annual site visit to a Cameco-operated facility or other nuclear facility for all directors. Board members are encouraged to annually attend a seminar or conference on pertinent topics at the corporation's expense. The nominating, corporate governance and risk committee is responsible for confirming that a board education program (attached as Appendix D to these guidelines) is in place and resources are made available to provide an orientation program for new directors and appropriate continuing education opportunities for all directors.

Annually, the nominating, corporate governance and risk committee reviews the effectiveness of the board, its chair and committees and individual directors through the use of a confidential survey, including a self-assessment every second year, completed by each member. The results of the surveys are subsequently discussed by the board. The chair of the committee, through annual interviews with each director, provides directors with an opportunity to discuss any matters relating to their peers' performance or other aspects of the functioning of the board. The committee, through the survey and interviews, assesses the operation of the board and the committees, the adequacy of information given to directors, communication between the board and management, the effectiveness of the processes of the board and committees, and the effectiveness of the board and individual directors. The committee recommends to the board any changes needed to enhance performance based upon this assessment process. In addition, the members of each board committee self-assess the effectiveness of their committee and its chair by completing a confidential survey; the audit committee completing its survey annually and the other committees every second year. The survey is reviewed by the chair of each respective committee and reported to the board as to committee effectiveness. The effectiveness of the chair of each committee is reviewed by the board chair every second year and reported to the board.

Due to the substantially increased demands on directors of public companies, a director who is also a chief executive officer of a public company should not serve concurrently on the boards of more than two other public companies in addition to the board of the company employing the chief executive officer, and other directors should not serve concurrently on the boards of more than four public companies in addition to the corporation's board. Notwithstanding the foregoing, a director may serve on more boards than the stipulated amount for an interim period where such director has stated his or her intention to resign or not stand for re-election for one or more of such other public companies, such that the director shall be in compliance with this provision no later than the next annual general meeting or meetings of such other public company or companies. It is expected that a director will apprise the board chair and the nominating, corporate governance and risk committee chair of a proposed acceptance of a directorship on an additional public company in order to provide an opportunity for the board chair and committee chair to be satisfied that the director is in compliance with this guideline and no real or apparent conflict of interest would result.

Directors will not sit on boards of corporations competing with Cameco nor be members of organizations or groups adverse in interest to Cameco without the permission of the board.

Directors are to promptly report all actual, potential, or perceived conflicts of interest to the corporate secretary. The corporate secretary will bring the situation to the attention of the nominating, corporate governance and risk committee for review and recommendation to the board. Directors do not participate in committee or board discussions or decisions related to their own possible conflicts.

Any conflict of interest of an employee who is also an insider (as defined by the Ontario Securities Act) that management recommends Cameco accept, will be brought before the audit committee for further review. The audit committee will recommend to the board whether the conflict is acceptable. A conflict of interest of an insider must be approved by the board of directors.

Any transactions between Cameco and its officers or directors, other than routine transactions and situations arising in the ordinary course of business consistent with past practice, will be brought to the board of directors for approval on the recommendation of the audit committee.

When a director's principal occupation or business association changes substantially from the position he or she held when originally invited to join the board, the director shall promptly offer his or her resignation to the board chair. The nominating, corporate governance and risk committee will consider the change in circumstance and recommend to the board whether the resignation should be accepted.

Interested parties may contact the board chair and other independent directors as a group by mailing (by regular mail or other means of delivery) to the corporate head office at 2121 11th St. W., Saskatoon, SK S7M 1J3, Canada, a sealed envelope marked "Private and Strictly Confidential – Attention: Chair of the Board of Directors of Cameco Corporation." Any such envelope shall be delivered unopened to the board chair.

The board has adopted a position description for the chief executive officer of the corporation, which sets out the duties and responsibilities of the chief executive officer. This position description (attached as Appendix C to these guidelines) will be reviewed from time to time.

The human resources and compensation committee annually reviews the corporation's succession plan. As well, annually the board receives a formal presentation of the succession plan. The committee also ensures that processes are in place for the development of leaders at Cameco for management succession. The board creates opportunities for directors to become acquainted with employees who have the potential to become members of senior management. Such opportunities may include presentations to the board by these employees or interaction with them on social occasions.

All compensation policies and programs for Cameco executive officers (including chief executive officer and senior vice-presidents) are reviewed by the human resources and compensation committee and recommended to the board for approval. The compensation policies and programs link executive compensation to corporate performance and the creation of sustained shareholder value. The committee reviews the annual performance of the chief executive officer and performance assessments of the senior vice-presidents provided by the chief executive officer, all in light of the corporation's performance, then recommends compensation awards for the chief executive officer and senior vice-presidents to the board for approval. The committee also recommends to the board for approval the corporate annual goals and objectives which become the chief executive officer's specific annual goals and objectives. In conducting management evaluation and determining management compensation, the human resources and compensation committee will retain outside advisors independent of management, as necessary.

General: The board will carry out its responsibilities directly and through the following committees and such other committees as it may establish from time to time: the reserves oversight committee, the audit committee, the nominating, corporate governance and risk committee, the human resources and compensation committee and the safety, health and environment committee.

Composition: The audit committee, nominating, corporate governance and risk committee and human resources and compensation committee will be comprised solely of "independent directors" who are selected by the board on the recommendation of the nominating, corporate governance and risk committee. Audit committee members will also meet the financial literacy and accounting and financial expertise requirements set out in applicable securities laws with one member, when possible, qualifying as an audit committee financial expert. The safety, health and environment committee and reserves oversight committee will each be comprised of a majority of "independent directors" who are selected by the board on the recommendation of the nominating, corporate governance and risk committee.

Chair: Each committee of the board will be chaired by a director who is selected by the board on the recommendation of the nominating, corporate governance and risk committee. The committee chair is responsible for determining the agenda and the frequency and conduct of meetings.

Each committee has a mandate which sets out its responsibilities and duties. All committee mandates are available on Cameco's website. Below is a brief description of the responsibilities of each committee.

Audit Committee: The audit committee's role is to assist the board of directors in fulfilling its oversight responsibilities for the accounting and financial reporting process, internal controls, external auditors (including performance, qualifications, independence and audit of the corporation's financial statements), performance of the internal audit functions and compliance with laws and regulations (other than environment and safety). The audit committee makes recommendations to the board respecting the above matters.

Human Resources and Compensation Committee: The human resources and compensation committee makes recommendations to the board respecting board and senior management compensation and contractual arrangements, succession planning and the human resources policies for the corporation. It reviews executive compensation disclosure before this information is publicly disclosed. It is responsible for pension plan governance, including oversight of the management of the corporation's pension plans.

Nominating, Corporate Governance and Risk Committee: The nominating, corporate governance and risk committee makes recommendations to the board for the nomination of directors and committee members and assesses the effectiveness of the board of directors and its committees. It has responsibility for evaluating and advising the board on the corporation's approach to corporate governance and oversight for risk management. It also has responsibility for overseeing compliance with the corporation's code of conduct and ethics.

Reserves Oversight Committee: The role of the reserves oversight committee is to oversee the estimation of reserves by management and review and recommend to the board reserve information before publication.

Safety, Health and Environment Committee: The safety, health and environment committee makes recommendations to the board respecting the corporation's safety, health and environment policies and management systems. The committee also monitors the safety, health and environmental performance of the corporation, and reviews the sustainable development reports.

In addition to satisfying the board independence criteria, directors who are members of the audit committee will not be considered independent for the purpose of membership on the audit committee if:

Interested parties may contact the audit committee chair by mailing (by regular mail or other means of delivery) to the corporate head office at 2121 11th St. W., Saskatoon, SK S7M 1J3, Canada, a sealed envelope marked "Private and Strictly Confidential – Attention: Chair of the Audit Committee of Cameco Corporation." Any such envelope shall be delivered unopened to the audit committee chair.

Each audit committee member shall be financially literate with at least one member having accounting or related financial expertise, where: "financially literate" means the ability to read and understand a set of financial statements that present a breadth and level of complexity of accounting issues that are generally comparable to the breadth and complexity of issues that can be reasonably expected to be raised by the corporation's financial statements; and "accounting or related financial expertise " means the ability to analyse and interpret a full set of financial statements, including the notes attached thereto, in accordance with Canadian generally accepted accounting principles. In addition, where possible, at least one member of the committee shall also qualify as an "audit committee financial expert" within the meaning of applicable securities law.

Members of the audit committee are not to serve on the audit committees of more than two additional public companies, without the approval of the board.

The directors are to hold an in camera session separate from management at all board and committee meetings. The chairs of the board and committees shall inform management of the substance of these meetings to the extent that action is required.

The "independent directors" (as defined in Appendix A to these guidelines) are to meet separately from non-independent directors and management at least once a year.

Board meetings will be scheduled in advance at appropriate intervals throughout the year. In addition to regularly scheduled board meetings, additional board meetings will be called upon proper notice at any time to address specific needs of the corporation. The board may also take action from time to time by unanimous written consent. A board meeting may be called by the chair, the chief executive officer or any two directors.

In the case of the audit committee, a meeting may also be called by external auditors, internal auditor or chief financial officer. In the case of all other committees, a meeting of any committee may be called by the chair, chief executive officer, committee chair or any other committee member. Each committee will meet as often as it determines is necessary to fulfill its responsibilities.

Board meetings will be held at a location determined by the chair and meetings of each committee are held at a location determined by the committee chair.

The board is to receive regular monthly reports on the financial results and activities of the corporation. Under normal circumstances, the agenda and pertinent information are to be distributed to directors at least seven days before each board or committee meeting.