| 1988 |
McArthur River deposit discovered. |
| 1997 |
Project approved by provincial and federal governments. |
| 1997 |
Atomic Energy Control Board (AECB) approved construction license. |
| 1999 |
AECB approves operating license. |
| 1999 |
AREVA Resources purchased a 16.66% interest from Cameco in the Key Lake mill. |
| 1999 |
Production began. |
| 2000 |
The Key Lake mill began milling ore from the McArthur River mine. |
| 2000 |
McArthur River received the Canadian Institute of Mining's John T. Ryan trophy for the best safety record for metal mines in Canada in 1999. |
| 2003 |
McArthur River and Key Lake received ISO 14001 certification. |
| 2004 |
Operating license renewed, valid until 2008. |
| 2008 |
Operating license renewed, valid until 2013. |
