Copper Mountain completes Phase 2 drill program at New Ingerbelle with continued positive results

VANCOUVER, Sept. 19, 2018 - Copper Mountain Mining Corp. (TSX: CMMC | ASX:C6C) (the "Company" or "Copper Mountain") is pleased to announce that is has completed Phase 2 of its 3-Phase drilling program at the New Ingerbelle property, and results continue to be positive.  New Ingerbelle is located adjacent to the present operations of the Copper Mountain Mine (See Appendix A for New Ingerbelle location map).

Highlights from the remaining 14 drill holes of phase 2 include:

• Hole 18IG-24 returning 188 metres of 0.55% CuEq (0.38% Cu, 0.45 g/t Ag, 0.25g/t Au) which includes 114 metres of 0.71% CuEq (0.49% Cu, 0.51 g/t Ag, 0.32 Au g/t)
• Hole 18IG-26 returning 135 metres of 0.71% CuEq (0.49% Cu, 0.97g/t Ag, 0.32g/t Au)
• Hole 18IG-18 returning 339 metres of 0.37% CuEq (0.27% Cu, 0.53g/t Ag, 0.14g/t Au)
• Hole 18IG-27 returning 96 metres of 0.55% CuEq (0.39% Cu, 0.69g/t Ag, 0.23g/t Au), and
• Hole 18IG-28 returning 54 metres of 0.58% CuEq (0.42% Cu, 0.80g/t Ag, 0.23g/t Au) and 90 metres of 0.62% CuEq (0.46% Cu, 0.57g/t Ag, 0.23g/t Au)

Gil Clausen, Copper Mountain's President and CEO stated, "These drill results continue to demonstrate that New Ingerbelle has the potential to be of considerable size and significance to the Company. We have extended mineralization below prior resource limits, expanded it laterally and filled in the resource as planned.  With the Phase 2 drilling program complete, we are now working on incorporating the results into an updated mineral resource for New Ingerbelle, which we expect to announce shortly. We believe New Ingerbelle will continue to increase in significance as a development project for the Company and will fit perfectly in our organic development pipeline of growth projects."

Copper Mountain initiated a 3-Phase drilling program at the New Ingerbelle Mine last year with Phase 1, which was successful in validating and confirming historical data. Phase 2, which consisted of 29 drill holes totalling approximately 10,000 metres, was designed to expand the New Ingerbelle resource area and convert Inferred Mineral Resources to the Measured and Indicated status. Having now completed the second phase, work is currently underway to update the Resource.  The updated Resource estimate is planned to be announced before the end of the third quarter of 2018. Significant intercepts from the remaining 14 holes that have not yet been announced from the Phase 2 drill program, are summarized in the table below.  A drill hole location map for the Phase 2 program and associated cross sections can be found in Appendix B, while a detailed listing of drill holes being reported can be found in Appendix C.

*CuEq% is based on metal content only as historical recoveries have not yet been verified. Metal prices assumed in the calculation are US$2.75/lb Cu, US$1,250/oz Au, and US$16/oz Ag.

Competent Persons Statement
The information in this report that relates to Exploration Targets, Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Peter Holbek, B.SC (Hons), M.Sc. P. Geo. Mr. Holbek is a full time employee of the Company and has sufficient experience which is relevant to the style of mineralization and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mr. Holbek does consent to the inclusion in this news release of the matters based on their information in the form and context in which it appears.

Peter Holbek is a Qualified Person as defined by National Instrument 43-101 and has reviewed and approved the technical content of this release.

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 Copper Mountain mine produces about 90 million pounds of copper equivalent per year with a large resource that remains open laterally and at depth. Copper Mountain also has the permitted, development stage Eva Copper Project in Queensland, Australia and an extensive 379,000 hectare highly prospective land package in the Mount Isa area. Copper Mountain trades on the Toronto Stock Exchange under the symbol "CMMC" and Australian Stock Exchange under the symbol "C6C".

Additional information is available on the Company's web page at www.CuMtn.com.

On behalf of the Board of

COPPER MOUNTAIN MINING CORPORATION

"Gil Clausen"     

Gil Clausen, P.Eng.
Chief Executive 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.

APPENDIX C:  2018 New Ingerbelle Drill Holes

Diamond drilling, which runs 24/7, uses NQ2 diameter rods and bits and drill core is placed in wooden boxes which are delivered to the core logging area at the end of every shift.  Drill-hole collars are surveyed with differential GPS and down-hole surveys using a Reflex instrument are taken approximately every 30-80m depending on ground conditions and hole length.  The core is logged, and sample tags a stapled into the boxes where samples are to be taken and the core is photographed.  Core recovery is always at, or near, 100% except for fault zones.  All assay samples are 3m in length.  Core is split with a diamond saw, and samples are transported to the mine's analytical laboratory by members of the exploration team.  Samples are sorted, weighed, dried and crushed prior to pulverizing to 75% passing -200mesh.  Cu and Ag are analyzed by XRF and samples with >0.4% Cu are re-analyzed by Atomic Absorption.  Sample pulps for all samples >0.1% Cu are delivered to a commercial lab for Au analysis by either fire assay or Aqua Regia digestion followed by AA analysis.  Additionally, every tenth sample is analyzed by ICP-AES for a 35-element suite, which includes Cu and Ag providing checks on the mine-site laboratory, in addition to routine insertion of standards and blanks.  All pulps and coarse-reject material are retained.

Intercept grades are length-weighted averages using uncut grades.  For additional information on project land holdings, history, production data, geology and mineralization, the reader is directed to Canadian NI:43-101 reports which a filed under the company name on the SEDAR website. 

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SOURCE Copper Mountain Mining Corp.