Gisborne Industrial Construction Ltd. Awarded Construction Contract

    TSX: CUM

    VANCOUVER, Sept. 3 /CNW/ - Copper Mountain Mining Corporation ("CMMC" or
the "Company") reports that Merit Consultants International Inc.,Construction
Manager, for the Copper Mountain Project has awarded Gisborne Industrial
Construction Ltd the contract as General contractor to start mill foundation
work early this month subject to government approvals. The schedule provides
for the mill foundations to be completed this fall with steel being erected
early next spring. With the preliminary work completed this fall the mill
building will be fully enclosed by mid 2010 to allow equipment installations
to proceed to meet the planned mid 2011 production start.
    The Project is an open pit porphyry copper mine that operated from 1972
to 1996 and over its life produced 1.74 billion pounds of copper, 9.1 million
ounces of silver and 730 thousand ounces of gold. The current resource is
estimated at 5 billion pounds of copper at a 0.15 % Cu cut-off. The resource
estimate incorporates data from over 4,400 historical drill holes totalling
approximately 400,000 metres, and 370 new drill holes, totalling 107,000
metres from the Company's 2007 and 2008 exploration programs.
    Mr. O'Rourke, Chief Executive Officer of the Company stated: "Following
Mitsubishi Materials Corporation purchasing 25 percent of the project the new
Similco board approved the development schedule which has provided a major
step to the Company becoming a significant new mid tier copper producer. The
current economic conditions provide an ideal time to be developing a major
mine in British Columbia."
    To date, site activities have been funded by the Company's equity
contributions and a $28.75 million line of credit from Mitsubishi, which
together have totalled almost $40 million. Long lead items have been ordered
with the SAG and ball mill manufacturing well underway to maintain the target
production schedule for mid 2011. Detailed engineering is progressing and site
geotechnical excavation for the concentrator is now complete. The office and
warehouse complex is now fully functional with power, heat, water, telephones,
internet, and sewerage. The Company currently has approximately 20 employees
currently engaged at the site on construction activities. It is estimated that
the project will provide employment for 200 construction workers at its peak
and the ongoing operations will create 257 full time positions. Over the 17
year life of the project, it is estimated that the mine will produce 1.47
billion pounds of Copper, 452,000 ounces of gold, and 4.5 million ounces of

    About The Gisborne Group:

    The Gisborne Group is a multi disciplined industrial construction company
that has been in continuous operation since 1953 and performs work throughout
Canada. Safety, service and quality are the guiding factors in all we do.
    Gisborne's industrial construction projects range from the installation
of complete plants and processing lines to the installation, hook-up and
piping of single machines. Specializing in industrial construction, piping,
and mechanical installations, our company has attracted and developed a
substantial work force of certified trades required for precision
installation, piping, structural steel installation, foundation and civil
work. This gives Gisborne the ability to handle complete construction projects
from start to finish.

    About Copper Mountain Mining Corporation:

    CMMC 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". CMMC owns 75% and Mitsubishi Materials Corporation owns 25% of
the Copper Mountain Project. The 18,000 acre mine site is located 15 km south
of the town of Princeton in southern British Columbia. The Copper Mountain
Project is a past producer of 1.7 billion pounds of Copper that closed in
1996, and therefore, there is significant developed infrastructure on site
that the Company can build upon. The Copper Mountain Project has a current
resource of approximately 5 Billion pounds of copper and it is CMMC's goal to
develop the Copper Mountain Project as a mid tier copper and precious metal
mine to produce approximately 100 million pounds of copper per year by mid
2011. Additional information is available on the Company's web page at

    On behalf of the Board of

    "Rod Shier"

    Rod Shier
    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, 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.

For further information:

For further information: Don Graham: Director, Investor Relations, (604)
682-2992 ext. 224, Email:; or B&D Capital, (604) 685-6465;

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