| 2012 |
McArthur River Technical Report was updated which highlighted a 19% increase in Cameco's share of mineral reserves and a mine life of at least 22 years, based on the planned production schedule. |
| 2011 |
Advanced feasibility work on the McArthur River extension project. This is a multi-year project to safely expand the underground mine and develop new mining areas. |
| 2010 |
McArthur River awarded the John T. Ryan National Safety Trophy for the best safety performance in the metal mine category based on 2009 performance |
| 2009-2010 |
Development of cathedral-shaped freeze barrier allows access tunnel and raisebore mining chambers to be safely constructed through the poor ground at the geological unconformity above Zone 2 Panel 5 section of the deposit |
| 2008 |
operating licence renewed, valid until 2013 |
| 2006 |
production increase undergoing environmental assessment with CNSC |
| 2004 |
operating licence renewed, valid until 2008 |
| 2004 |
applied for production increase from 18.7 million to 22 million
pounds U3O8 |
| 2003 |
Cameco
restarts mining at McArthur River |
| 2003 |
Cameco
Reports Increased Water Flow at McArthur River Mine |
| 2003 |
McArthur River and Key Lake ISO 14001 certified |
| 2001 |
produced at design capacity of 18 million pounds U3O8 |
| 2001 |
increased reserves by more than 50% |
| 2000 |
achieved commercial production in November 2000 and mined
11 million pounds U3O8 in its first full
year |
| 2000 |
jointly awarded with the Key Lake Operation the Canadian Institute
of Mining, Metallurgy and Petroleum's John T. Ryan trophy for
the best safety record for metal mines in Canada in 1999 |
| 1999 |
began production |
| 1999 |
approval of operating licence by AECB |
| 1999 |
Cameco announced that reserves increased by 35%
to 255 million pounds U3O8 |
| 1997 |
began construction |
| 1997 |
approval of construction licence by Atomic Energy
Control Board (AECB) |
| 1997 |
approval of project by provincial and federal
governments |
| 1996 |
public hearings |
| 1996 |
completed shaft sinking |
| 1994 |
began underground development from the 530-metre
level |
| 1993 |
began shaft sinking |
| 1993 |
government approved underground exploration |
| 1988 |
discovered deposit |
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