Exhibit 1

GARY M. S. CHAD, Q.C.
Senior Vice-President,
Governance, Law and
Corporate Secretary

CAMECO CORPORATION
Corporate Office
2121 — 11th Street West
Saskatoon, Saskatchewan
Canada S7M 1J3

Tel 306.956.6303
Fax 306.956.6312
www.cameco.com

May 18, 2011

Canadian Securities Administrators

Cameco Corporation
Annual Meeting May 17, 2011
Report of Voting Results
Under National Instrument 51-102

In accordance with Section 11.3 of National Instrument 51-102 — Continuous Disclosure Obligations, we hereby advise of the results of the voting on the matters submitted to the annual meeting (the “Meeting”) of the shareholders (the “Shareholders”) of Cameco Corporation (the “Corporation”) held on May 17, 2011. Each of the matters set forth below is described in greater detail in the Notice for the Meeting and Management Proxy Circular mailed to Shareholders prior to the Meeting.

The matters voted upon at the Meeting and the results of the voting were as follows:

Item 1: Election of Directors

The following directors were elected to hold office for the ensuing year or until their successors are elected or appointed:

Daniel Camus	Gerald W. Grandey
John H. Clappison	Nancy E. Hopkins
Joe F. Colvin	Oyvind Hushovd
James. R. Curtiss	A. Anne McLellan
Donald H. F. Deranger	A. Neil McMillan
James K. Gowans	Victor J. Zaleschuk
Timothy S. Gitzel

May 18, 2011
Page 2

If a ballot vote had been taken, based upon proxy votes by Shareholders received by the Corporation and after giving effect to the twenty-five (25%) percent non-resident Shareholder voting restriction, the voting results for the election of directors would have been:

Nominee	Votes For		% Votes For		Withheld		% Votes Withheld
Daniel Camus		191,133,189		96.11		7,738,422		3.89
John H. Clappison		187,015,908		94.04		11,855,704		5.96
Joe F. Colvin		191,771,354		96.43		7,100,258		3.57
James. R. Curtiss		186,795,154		93.93		12,076,457		6.07
Donald H. F. Deranger		173,739,163		87.36		25,132,448		12.64
James K. Gowans		192,214,618		96.65		6,656,993		3.35
Timothy S. Gitzel		192,167,299		96.63		6,704,313		3.37
Gerald W. Grandey		192,165,443		96.63		6,706,168		3.37
Nancy E. Hopkins		192,070,647		96.58		6,800,965		3.42
Oyvind Hushovd		185,808,100		93.43		13,063,511		6.57
A. Anne McLellan		186,703,323		93.88		12,168,288		6.12
A. Neil McMillan		179,353,109		90.19		19,518,502		9.81
Victor J. Zaleschuk		192,312,242		96.70		6,559,370		3.30

Item 2: Appointment of Auditors

By a vote by way of show of hands, KPMG LLP was appointed auditors of the Corporation to hold office until the next annual meeting of Shareholders, or until their successors are appointed.

If a ballot vote had been taken, based upon proxy votes by Shareholders received by the Corporation and after giving effect to the twenty-five (25%) percent non-resident Shareholder voting restriction, the voting results for appointment of auditors would have been:

Votes For	% Votes For		Votes Withheld		% Votes Withheld
200,498,760		99.33		1,349,668		0.67

Item 3: Bylaws Amendment

By a vote by way of show of hands, an advisory resolution was passed amending sections 5.2 and 7.7 of Bylaw No. 6 disclosed in Cameco’s Management Proxy Circular delivered in advance of this meeting.

The outcome of the ballot vote, after giving effect to the twenty-five (25%) percent non-resident voting restriction, was as follows:

Votes For	% Votes For		Votes Against		% Votes Against
197,857,996		99.49		1,011,957		0.51

May 18, 2011
Page 3

Item 4: Executive Compensation

On a vote by ballot, an advisory resolution was passed accepting the approach to executive compensation disclosed in Cameco’s Management Proxy Circular delivered in advance of this meeting.

The outcome of the ballot vote, after giving effect to the twenty-five (25%) percent non-resident voting restriction, was as follows:

Votes For	% Votes For		Votes Against		% Votes Against
183,778,516		92.41		15,088,544		7.59

Cameco Corporation
By:	/s/ “Gary M. S. Chad” Gary M. S. Chad Senior Vice-President, Governance, Law and Corporate Secretary