Copper Mountain Mining : Announces Production Results For Q2 – 2017

Telephone: (604) 682-2992

Facsimile: (604) 682-2993

Second Quarter 2017 Production Highlights:

█ Annual production on track: Produced 17.2 million pounds of copper, 5,856 ounces of gold, and 63,179 ounces of silver during the second quarter, bringing the first half year production totals to 35.3 million pounds of copper, 11,718 ounces of gold, and 127,440 ounces of silver.

█ Mill throughput: Milled 3.2 million tonnes of ore at an average rate of 35,674 tpd, with 82.4% operating time. Copper recovery for the period was 77.6% treating an average grade of 0.31% copper.

█ Mine production strong: Mined approximately 200,000 tonnes of material per day during the second quarter.

The mill successfully completed the planned replacement of the SAG mill bull gear in April, ahead of schedule. Downtime for this job was factored into our annual production guidance of 75M-85M lbs of copper. Mill tonnage following the shutdown averaged 43,482 tpd, and 41,057 tpd for the months of May and June respectively.

Mining activities continued from the Pit 2, Saddle and Oriole Pit areas. A total of 18.2 million tonnes of material was mined, including 6.3 million tonnes of ore and 11.9 million tonnes of waste, resulting in a strip ratio of 1.89 to 1. High equipment mechanical availability was maintained during the quarter which helps contribute to the above average mining rates achieved during the quarter.

Mr. Jim O'Rourke, President and Chief Executive Officer of Copper Mountain Mining, said "The team at site did an excellent job in minimizing downtime during this maintenance job and we look forward to a stronger second half of 2017 as originally forecasted."

Copper Mountain's flagship asset is the 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 25% of the mine. The Copper Mountain mine has a large resource of copper that remains open laterally and at depth. This significant exploration potential will be explored over the next few years in order to fully appreciate the property's full development potential. Additional information is available on the Company's web page at www.CuMtn.com.

A conference call and audio webcast will be held on Tuesday August 8, 2017 at 7:30 am (Pacific Daylight Time) for management to discuss the second quarter 2017 results. This discussion will be followed by a

question-and-answer period with investors.

Live Dial-in information

Toronto and international: 647-427-7450 North America (toll-free): 888-231-8191

To participate in the webcast live via your computer go to: http://event.on24.com/r.htm?e=1466139&s=1&k=E3817D1FFF1664BB160345A27D7DA122Replay call information

Toronto and international: 416-849-0833, passcode 54136683

North America (toll-free): 1-855-859-2056, passcode 54136683

The conference call replay will be available from 10:30 am (PDT) on August 7th, 2017, until 20:59 pm PST on Tuesday, August 22nd, 2017.

Participant audio webcast will also be available on the Company's website at http://www.cumtn.comhttp://www.CuMtn.com

On behalf of the Board of

"Jim O'Rourke"

Jim O'Rourke, P.Eng. Chief Executive Officer

Dan Gibbons, Investor Relations 604-682-2992 ext. 238 Email: Dan@cumtn.com Rod Shier, Chief Financial Officer 604-682-2992 ext.222 Email: Rod@CuMtn.com Website: www.CuMtn.com

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.