2010 Annual Report

Exploration

Exploration and
development spending
($ millions)
Exploration and Development Spending

Exploration is key to ensuring our long-term growth, and since 2002 we have more than tripled our annual investment.

2010 update

Brownfield exploration
Brownfield exploration is uranium exploration near our existing operations, and includes expenses for advanced exploration projects where uranium mineralization is being defined.

We spent $11 million in five brownfield exploration projects, and $48 million for resource delineation at Kintyre and Inkai block 3.

Regional exploration
We spent about $37 million in regional exploration programs (including support costs). Saskatchewan was the largest region, followed by Australia, northern Canada, Asia, and South America.

We own a 30% interest in the Phoenix deposit, part of the Wheeler River joint venture in Saskatchewan, operated by 60% owner Denison Mines. In 2010, an initial estimate of 36 million pounds indicated mineral resources (100%) for zone A, the largest of four known mineralized zones of the deposit, was announced.

Plans for 2011

We plan to spend approximately $90 million on uranium exploration in 2011 as part of our long-term strategy. This includes activities at our projects under evaluation.

Brownfield exploration
About $9 million will be spent on five brownfield exploration projects in the Athabasca Basin and Australia. Our expenditures on projects under evaluation are expected to total $22 million, with the largest amounts spent on Kintyre and on further delineation of the Inkai block 3 resource.

Regional exploration
We expect to spend about $60 million on 54 projects worldwide, the majority of which are at drill target stage. Among the larger expenditures planned are $8 million on two adjacent projects in Nunavut, $5 million directed towards new targets in South Australia and Argentina, and a $4 million expenditure on the Wellington Range project in Northern Territory, Australia.

Cameco 2010 Annual Report