Sites / Canada

McArthur River / Key Lake

Name: McArthur River / Key Lake
Address: Saskatchewan, Canada

Uranium mine / mill · Saskatchewan, Canada · operated by Cameco Corporation (CCJ)

Status

Operating

Production (2024, annual, WNA)

7,808 tU

Resources

390 Mlbs U₃O₈

Grade

6.9% U₃O₈

Published figures

Estimated

Production (2024, annual, WNA)	7,808 tU	source
Resources	390 Mlbs U₃O₈	source
Grade	6.9% U₃O₈	source
AISC	$38/lb	source
Deposit type	Unconformity	source
Mining method	Conventional Underground	unsourced

Quarterly production (100% basis)

100% basis

Real

Dried and drummed U3O8 is the production figure; upstream stages are labelled and never substituted. Hover a figure for the company's wording and unit; click it to open the document. The annual tU figure above is the WNA mining table, a different measure. Sector-wide tracker →

Period	Dried and drummedMlb U3O8, 100% basis	Source
second quarter of 2026	3.30unverified	source
first quarter of 2026	5.00unverified	source
third quarter of 2025	3.20unverified	source
second quarter of 2025	2.60unverified	source
three months ended March 31, 2025 (first quarter of 2025)	4.60unverified	source

Highest-grade uranium mine in the world; #1 producer in 2024 (13% of world output)

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Coordinates are approximate. Figures are curated from company filings, technical reports and the World Nuclear Association, with a citation per figure; unsourced values are flagged, not hidden. Informational only — not investment advice.

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