Copper Mountain mine back in full operation one week ahead of schedule

    Copper Mountain mine back in full operation one week ahead of schedule

PR Newswire

VANCOUVER, June 10, 2013

Web Site: www.CuMtn.com
TSX: CUM

VANCOUVER, June 10, 2013 /PRNewswire/ - Copper Mountain Mining Corporation
(TSX: CUM) (the "Company" or "Copper Mountain")  announces that further to the
Company's news releases of May 22 and 17, 2013, the damaged SAG mill
transformer has now been fully repaired and re-installed which has allowed the
concentrator to be back at full operation with one SAG Mill and two Ball Mills
operating as expected. Site maintenance personnel received the repaired
transformer from the repair shop in Edmonton this past weekend, a full week
ahead of the originally scheduled shipment date. The repaired transformer has
had all three sets of coils replaced and has been fully inspected and
certified as new by ABB personnel and comes with a one year warranty.

Mr. Jim  O'Rourke,  President  &  CEO  stated,  "We  were  very  pleased  with 
operational results of running with only one Ball Mill. During the period  in 
which the concentrator was operating with  only one Ball Mill, site  personnel 
were able to make modifications to the operation to minimize lost  production, 
which included mining higher  grade material, decreasing the  size of the  SAG 
Mill discharge screen to provide  a finer size of ore  being sent to the  Ball 
Mill thus maximizing  the Ball  Mill's capacity.  The operational  adjustments 
were very effective in that  during the period of  running with just one  Ball 
Mill, the concentrator achieved a 95.4% availability; averaged 1,207 TPOH; had
copper recoveries of 86.7%; and produced 12%  more lbs of copper per day  than 
the first two weeks of May before the transformer failure."

Mr. O'Rourke continued,  "The operation  with one Ball  Mill clearly  confirms 
that if we can increase  tonnage through the SAG  Mill, the Ball Mill  circuit 
will handle it. All data from operations during this period confirms that  we 
could achieve 2000 TPOH at 92% operating time with both Ball Mills running. I
would like to thank  all site personnel  and ABB staff  who worked around  the 
clock to get the failed  transformer back in operation a  full week a head  of 
the originally estimated repair time."

The exact cause of the  failure has not yet  been determined, the three  coils 
that were replaced have been  sent to ABB`s repair  shop in Italy for  further 
testing and evaluation.

About Copper Mountain Mining Corporation:
Copper Mountain's flagship asset is the 75% owned Copper Mountain mine located
in southern British  Columbia near the  town of Princeton.  The Company has  a 
strategic  alliance  with  Mitsubishi  Materials  Corporation  who  owns   the 
remaining 25%. The Copper Mountain mine commenced production in the summer  of 
2011, and  has  continued to  improve  its  operations during  the  year;  and 
attained design capacity in  the summer of  2012. The 18,000  acre site has  a 
resource of  approximately  5  billion  pounds  of  copper  and  remains  open 
laterally and at depth.  The mine has  significant exploration potential  that 
will need to  be explored  over the  next few  years to  fully appreciate  the 
properties full development potential. Additional information is available on
the Company's new web page at www.CuMtn.com.

On behalf of the Board of
COPPER MOUNTAIN MINING CORPORATION

Rod Shier"

Rod Shier, CA
Chief Financial Officer

Note: This release contains forward-looking statements that involve risks and
uncertainties. These statements may differ materially from actual future
events or results. Readers are referred to the documents, filed by the
Company on SEDAR at www.sedar.com, specifically the most recent reports which
identify important risk factors that could cause actual results to differ from
those contained in the forward-looking statements. The Company undertakes no
obligation to review or confirm analysts' expectations or estimates or to
release publicly any revisions to any forward-looking statement.

SOURCE Copper Mountain Mining Corporation

Contact:

Galina Meleger, Corporate Communications 604-682-2992 ext.224 Email:Galina
@CuMtn.com or
Rod Shier, Chief Financial Officer 604-682-2992 ext.222 Email:Rod@CuMtn.com
Website:www.CuMtn.com
 
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