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Interim Resource Estimate For Copper Mountain Project Exceeds Expectations

Posted on: Thursday, 6 September 2007, 12:07 CDT

VANCOUVER, Sept. 6 /PRNewswire-FirstCall/ -- Copper Mountain Mining Corporation ("CMMC" or the "Company) announces that the resources have significantly increased from the previously reported historical resources at the Copper Mountain Mine Site. Highlights of this new NI 43-101 compliant, resource report are:

- Measured and Indicated resources, based on a 0.2% Cu cut-off grade, are 227.5 million tons grading 0.37% Cu containing 1.7 billion pounds of copper. - Inferred resources at 0.2% Cu cut-off grade are 197.2 million tons grading 0.31% Cu containing 1.2 billion pounds of copper. - Gold and silver grades were not reported on because these were not available with the historical drill data but historical production records indicate that approximately 12% of the concentrate value was from silver and gold credits and data from the current exploration program suggests that future production will have similar credits.

Jim O'Rourke, President and CEO, stated, "This interim resource estimate incorporates data from over 4,400 historical drill holes and 84 strategically placed new drill holes from the current 2007 exploration program. We are calling this an interim resource estimate because we have only completed 55% of our 51,000 meter program for 2007 and the deposit is still open in most directions."

Mr. O'Rourke continued, "additional growth of the Copper Mountain Resource is anticipated and exploration will be a primary focus on this 18,000 acre site that has numerous identified mineralized areas that warrant further drill programs. In the near term the project focus will shift to upgrading the inferred resources to measured and indicated categories as well as confirming metallurgical performance and optimizing the project development concepts. I think this property possesses a unique combination of near term production potential and exploration blue-sky."

The resource estimated was prepared by Giroux Consultants Ltd. of Vancouver British Columbia, an independent qualified person as defined by Canada's National Instrument 43-101. Methods used in determining and reporting the resources are consistent with CIM Best Practices Guidelines for the estimation of mineral resources and mineral reserves.

Measured Plus Indicated Resource Inferred Resource --------------------------------------- ------------------------------- Contained Contained Cut-off Tonnage Copper Tonnage Copper %Cu (000's) Grade (lbs) (000's) Grade (lbs) --------------------------------------- ------------------------------- 0.15 318,000 0.31 1,990,700,000 341,600 0.25 1,701,200,000 --------------------------------------- ------------------------------- 0.20 227,500 0.37 1,679,000,000 197,200 0.31 1,202,900,000 --------------------------------------- ------------------------------- 0.25 163,100 0.43 1,389,600,000 113,600 0.37 833,800,000 --------------------------------------- ------------------------------- 0.30 118,600 0.48 1,145,700,000 69,900 0.43 595,500,000 --------------------------------------- -------------------------------

The resource estimated is based on data from more than 155,000 assays from 4,400 historical drill holes, 67 drill holes from 1997 and 84 new diamond drill holes from the Company's 2007 drill results up to July 20, 2007. Historical drilling was validated by comparison to production records and comparison to new drilling. All data was compiled into a single database but seven domains were sub-divided on the basis of location and different orientations of the structural controls as determined by geology and experimental variography. All historical data was used during resource estimation but historically mined out areas were then removed from the block model. Block size was 25 feet by 25 feet by a 40 foot bench height. Block grade interpolation was a combination of ordinary kriging for lower grade, commonly disseminated mineralization, and indicator kriging for higher grade vein-like mineralization. High grade assays were capped prior to estimation based on a statistical review of the data. Drilling is continuing at the property to upgrade the inferred resources and test other known mineralized areas to possibly expand the resource.

A majority of the reported resources, particularly the measured and indicated occur adjacent to, and between the historical open pits known as Pit 1, Pit 2 and Pit 3. Outlying exploration areas such as Alabama, Virginia, Orinoco and Mill zones predominately contain resources within the inferred category. Copper Mountain continues to explore the project with two drill rigs and expects to be up to four drill rigs by early October. This resource estimate reported on herein, will form the basis for the Preliminary Economic Assessment (PEA) which is expected to be released in the third quarter of this year. The PEA will allow the company to better target drilling by determining which areas contribute most to project economics as well as providing data for pre-feasibility and/or feasibility studies which are anticipated to be initiated in the near future but based on the PEA results. Additionally, the Company has engaged the services of Quantec Geophysics to conduct a deep penetration IP (Titan 24) survey latter this month. This survey is being carried out to determine potential for both; additional near surface mineralization and deep higher-grade porphyry copper 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 shipped to Pioneer Laboratories for geochemical analysis of copper with all values of greater than 1000 ppm copper being re-analysed by assay methods for copper, gold and silver. The drilling program is being supervised by Peter Holbek, M.Sc., P.Geo., a qualified person as defined by National Policy Instrument 43-101.

About Copper Mountain Mining Corp.:

CMMC is a new public BC resource company. The Company owns 100% of Similco Mines Ltd which holds the mineral claims and crown grants over the 18,000 acre Similco Mine site, located 15 km south of the town of Princeton in southern British Columbia. Copper Mountain Mining Corp. has the goal of verifying and expanding the historical resources of the Copper Mountain project, as documented in a 43-101 technical report recently filled on SEDAR. Additional information is available on the Company's web page at http://www.cumtn.com/.

On behalf of the Board of COPPER MOUNTAIN MINING CORPORATION "Peter Holbek" Peter Holbek VP Explorations

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 http://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 statements.

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

Copper Mountain Mining Corporation

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

Source: PRNewswire-FirstCall

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