2012 drilling extends mineralization to the north and below the Super pit

  2012 drilling extends mineralization to the north and below the Super pit

PR Newswire

VANCOUVER, April 3, 2013

Web Site: www.CuMtn.com
TSX: CUM

VANCOUVER, April 3, 2013 /PRNewswire/ - Copper Mountain Mining Corporation
("CMMC" or the "Company") summarizes results from the 2012 mine site
exploration program, which was successful in extending mineralization both
laterally and to depth beyond the current limits of the Super pit.

The 2012 exploration program consisted of a total of 18,400m of core drilling
in 66 holes and 3,120m of shallow percussion drilling in 110 holes.
Exploration was successful in confirming the continuity of deep mineralization
below the Pit 2 area, extending mineralization to the north and northwest of
Pit 2, and intersecting high grade mineralization below the Super pit bottom
in Pit 3. The most significant results from the drill program were
intersections of 123m grading 0.75% CuEq* and 122.8m grading 0.69% CuEq at
depths in excess of 150m below the bottom of the Super pit in the Pit 2 area;
an intersection of 102m grading 0.70% Cu immediately below the bottom of the
Super pit in the center of Pit 3 area; and an intersection of 32m grading
3.03% CuEq in the southern end of Pit 3. This release summarizes the full 2012
exploration program and some of the results, in whole or part, were previously
reported in September, 2012.

Pit 2 Deep Drilling: Five holes, spaced approximately 100m apart, were drilled
with a southwesterly orientation deep below the western Pit 2 area, and
intersected mineralization at depths up to 250m below the bottom of the
proposed Super pit. These deeper holes, together with those drilled in
2010/11, encountered mineralization below the existing resource over the
entire length of Pit 2, with the best grades below the south wall of the pit.
Pit 2 mineralization remains open in all directions except to the southeast.

             Pit 2 Deep Drilling: Significant drill intersections

Hole_ID  Area  From (m) To (m) Interval (m) CuEq% Cu%  Ag g/t Au g/t
12P2-19  North  120.0   216.0      96.0     0.30  0.24  0.49   0.09
  and          444.0   570.0     123.0     0.75  0.67  1.26   0.12
12P2-21  North  240.0   353.8     113.8     0.38  0.28  0.86   0.16
12P2-23  North  174.0   246.0      72.0     0.35  0.31  0.81   0.06
  and          216.0   246.0      30.0     0.46  0.41  0.83   0.07
  and          306.0   366.0      60.0     0.46  0.39  1.17   0.11
12P2-024 North  321.0   483.3     162.3     0.37  0.30  0.85   0.11
12P2-026 North  204.0   495.3     291.3     0.45  0.34  0.98   0.17
 Incl.         342.5   465.3     122.8     0.69  0.52  1.23   0.27

* CuEq. or copper equivalent is based on Cu, Ag, and Au prices of $3.50/lb,
$31/oz and $1500/oz, respectively, mine site average recoveries of 82%, 48%
and 75% respectively; and smelter terms and transportation charges and is
designed to allow easy comparison of results from the different areas.

Pit 2 Near Surface Results: Shallow drilling along the southern, northern and
western edges of the Pit 2 area was successful at infilling gaps within the
block model as well as extending mineralization to the north, west and
northwest. Fourteen, relatively shallow, holes were completed on the south
and west side of Pit 2 infilling gaps and increasing confidence of resource
blocks. Eleven, shallow to moderate length, drill-holes were completed on
the north side and two medium length holes were drilled to the northwest from
the northwest corner of the pit. Additionally, five deep drill-holes below
the west-central part of Pit 2 were completed from the north side of the pit,
with the results from the upper part of these holes included in table below.
See attached map for drill-hole locations.

         Pit 2 Near Surface drilling: Significant drill intersections

Hole_ID   Area    From (m) To (m) Interval (m) CuEq%* Cu%  Ag g/t  Au g/t
12P2-04   West      81.0   129.0      48.0      0.39  0.34  0.75    0.07
12P2-05   West      15.0    66.0      51.0      0.35  0.31  0.75    0.06
12P2-07 Southwest   6.0     90.0      84.0      0.61  0.52  1.40    0.14
12P2-09   West      6.0    129.0     123.0      0.27  0.21  0.60    0.10
 Incl.             96.0   117.0      21.0      0.63  0.48  1.37    0.23
12P2-13   West      9.0    153.0     144.0      0.37  0.30  0.76    0.12
 Incl.            120.0   153.0      33.0      0.66  0.55  1.55    0.16
12P2-14   North     22.5    61.0      38.5      0.41  0.30  0.69    0.19
12P2-19   North     27.5    60.0      32.5      0.36  0.29  0.66    0.11
12P2-22   North     12.5    51.0      38.5      0.46  0.33  1.36    0.20
12P2-24   North     57.0   126.0      69.0      0.33  0.26  1.22    0.11
  and             165.0   198.0      33.0      0.64  0.51  1.42    0.20
12P2-29   North     80.0   150.0      70.0      0.44  0.38  1.09    0.08
12P2-36 Northwest  172.0   255.0      83.0           0.23 pending pending

The drill results on the north side of Pit 2 extended mineralization,
resulting in a northwards expansion of the Super pit. Additionally, results
from drilling to the northwest of Pit 2 (12P2-36) indicate that lower grade
mineralization extends for distances of 300m beyond the northwest edge of the
Super pit. Percussion drilling in the northeastern side of the pit proved to
be a rapid and inexpensive way of obtaining more data from the upper benches
to assist with mine planning. Favourable results of the diamond and
percussion drilling suggested higher tonnages and grades than projected by the
reserve model which was confirmed by initial mining in Pit 2.

Pit 3 Drilling: In the Pit 3 area 12 holes totalling 5,200m were drilled in
the southern and central Pit 3 areas and helped determine the extent of
historical mining in high-grade areas, as well as extending mineralization
both laterally and to depth. Ten holes were drilled on three, north-easterly
oriented, "scissor" sections spaced approximately 100m apart, at the southern
end of Pit 3, while two holes (P3-11 and 12) were drilled off the ramp near
the center of the pit, to the northwest and southeast, respectively. Two of
the holes (12P3-05, 06) in the southern end of the pit were not completed due
to broken ground, and a third hole (12P3-01) was abandoned in high grade
mineralization after intersecting an historical underground working. Results
of the drilling in the southern end of Pit 3 indicate that a zone of variable,
but generally narrow, thickness but relatively high-grade mineralization,
trends along the volcanic-intrusive contact and that only part of this zone
was previously mined during the underground era.

                    Pit 3: Significant drill intersections

Hole_ID    Area    From (m) To (m) Interval (m) CuEq% Cu%  Ag g/t  Au g/t
12P3-01   South     261.7   321.5      59.8     0.58  0.45  2.11    0.18
12P3-02   South     190.0   270.0      80.0     0.44  0.40  1.20    0.06
12P3-03   South     166.0   198.0      32.0     1.39  1.16  4.21    0.34
12P3-04   South     220.0   254.0      34.0     3.03  2.38  11.2    0.96
12P3-08   South     330.0   360.0      30.0     0.73  0.59  2.27    0.20
12P3-11 Central-NW  132.0   172.0      40.0          0.44 pending pending
  and              225.0   327.0     102.0          0.70    "       "
  and              428.7   477.0      48.3          0.55    "       "
12P3-12 Central-SE   19.5   102.0      82.5          0.52    "       "

Three holes drilled well below the maximum depth of historical workings
(12P3-09, 10 and the lower part of 12P3-12) did not intersect significant
mineralization at depth and suggest that mineralization in the southern end of
the pit is, at least partly, depth limited. Drill-hole 12P3-11 intersected
high grade mineralization immediately below the bottom of the proposed Super
pit as well as extending mineralization to depths of 150m below the Super pit
near the approximate center of Pit 3, which together with the results from the
south end of Pit 3, suggests that mineralization maybe plunging to the
northwest.

Alabama Ridge Drilling: Mineralization in the Alabama area is generally  more 
disseminated and less structurally controlled,  and therefore is generally  of 
lower grade  relative to  other areas  of Copper  Mountain. Drilling  in  the 
Alabama   area   was   designed   to   increase   the   resource   grade   and 
classification.  Results  of   the  drilling   were  generally   favourable 
indicating potential for some higher grade  areas within the Alabama zone  and 
demonstrating pervasive low grade  mineralization. A total  of 16 holes  were 
drilled along NE-SW oriented sections spaced  60m apart, over the central  and 
western parts  of  the Alabama  ridge.  Although drilling  failed  to  extend 
mineralization to  the  west,  it  did delineate  a  zone  of  moderate  grade 
mineralization  below  the  ridge  crest,  and  almost  all  holes  ended   in 
mineralization. Results are summarized below, and drill-hole locations can  be 
found on the accompanying plan.

                Alabama Zone: Significant drill intersections

Hole_ID From (m) To (m) Interval (m) CuEq.% Cu_% Ag g/t Au g/t
12AB-02   61.5   105.0      43.5      0.42  0.32  1.26   0.15
12AB-07  156.0   201.0      45.0      0.38  0.31  0.86   0.11
12AB-10   17.7   147.3     123.4      0.27  0.22  0.75   0.08
12AB-11   40.0   219.0     179.0      0.37  0.29  0.60   0.12
12AB-12   3.0    177.2     174.2      0.46  0.35  0.68   0.11
 Incl.   111.0   154.0      43.0      0.86  0.63  1.76   0.29
12AB-13   22.0   256.2     234.2      0.37  0.30  0.65   0.11
 Incl.   192.0   255.0      63.0      0.59  0.46  0.97   0.21
12AB-14   54.8   117.0      62.2      0.34  0.27  0.73   0.11
12AB-16   1.5    244.0     242.5      0.23  0.19  0.42   0.06

The mineralized system  at Copper  Mountain is classified  as a  bulk-tonnage, 
alkalic porphyry copper deposit  that is hosted  within Nicola Group  volcanic 
rocks and Lost Horse Intrusions. Mineralization is structurally controlled and
focused at  multi-directional vein  intersections  and within  vein  stockwork 
systems. Drill holes are usually drilled at  angles of -45 or -55 degrees  to 
provide the  best indication  of the  lateral extents  of vertically  oriented 
mineralization.

Quality Assurance
The company  employs a  system  of quality  control  for drill  results  which 
includes the use of blanks, certified reference material (standards) and check
assaying. Core is logged on site and split with a diamond saw. Samples  are 
analyzed for copper  at the mine  laboratory. Gold  and silver, as  well as  a 
large number of  duplicate copper assays  are determined on  pulps by  Pioneer 
Laboratories in Richmond,  B.C. The  drilling program is  supervised by  Peter 
Holbek, M.Sc.,  P.Geo.,  a qualified  person  as defined  by  National  Policy 
Instrument 43-101.

About Copper Mountain Mining Corporation:
Copper Mountain is a Canadian resource company managed by an experienced  team 
of professionals  with a  solid track  record of  exploration and  development 
success. The Company's shares trade on  the Toronto Stock Exchange under  the 
symbol "CUM". Copper Mountain owns  75% and Mitsubishi Materials  Corporation 
owns 25% of the Copper Mountain Mine. The 18,000 acre mine site is located 20
km south of the  town of Princeton in  southern British Columbia. The  Copper 
Mountain Mine has  a current  resource of  approximately 5  billion pounds  of 
copper and recently commenced production. 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

"Peter Holbek"
Peter Holbek
VP Exploration

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

PDF available at:
http://stream1.newswire.ca/media/2013/04/03/20130403_C2147_DOC_EN_25066.pdf

PDF available at:
http://stream1.newswire.ca/media/2013/04/03/20130403_C2147_DOC_EN_25067.pdf

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