TSX: CCO	CDN $28.88	0.09
NYSE: CCJ	US $28.21	0.11

McARTHUR RIVER

Annual Production

Uranium Operating Highlights (100% basis except where noted otherwise)
	McArthur River/Key Lake*			Rabbit Lake
	2009	2008	2007	2009	2008	2007

Tonnes milled	186,983	171,502	211,806	216,389	190,044	272,966
Production (million lbs U₃O₈)	19.1	16.6	18.7	3.8	3.6	4
Cameco's share	13.3	11.6	13.1	3.8	3.6	4
Recovery (%)	98.54	98.34	98.4	96.4	96.7	96.9
Average mill head grade (%U₃O₈)	4.68	4.45	4.07	0.82	0.87	0.69

Smith-Ranch/Highland

Crow Butte

Tonnes milled

n/a

n/a

n/a

n/a

Production (million lbs U₃O₈)

1.8

1.2

0.8

0.6

0.7

Cameco's share

1.8

1.2

0.8

0.6

0.7

Recovery (%)

n/a

n/a

n/a

n/a

Average mill head grade (%U₃O₈)

n/a

n/a

n/a

n/a

*	McArthur River ore is milled at Key Lake. Due to licence conditions, stockpiled low-grade ore at Key Lake is used to dilute the grade of McArthur River ore.

Last Reviewed: February 24, 2010