/C O R R E C T I O N from Source -- Copper Mountain Mining Corporation/

In the news release, Copper Mountain Mining Announces Second Quarter 2021 Results Conference Call Notification, issued 02-Jul-2021 by Copper Mountain Mining Corp. over CNW Group, we are advised by the company that the conference call time in the first paragraph should read "Eastern Time" rather than "Pacific Time" as originally issued inadvertently. The complete, corrected release follows:

VANCOUVER, July 2, 2021 - Copper Mountain Mining Corp. (TSX: CMMC) (ASX: C6C) (the "Company" or "Copper Mountain") will be releasing its second quarter 2021 financial and operating results before markets open on Monday, July 26, 2021. The Company will be hosting a conference call on Monday, July 26, 2021 at 10:30 am (Eastern Time) for senior management to discuss the results.

Dial-in information:
Toronto and international: 1 (416) 764 8650
North America (toll-free): 1 (888) 664 6383
To participate in the webcast live via computer go to:
https://produceredition.webcasts.com/starthere.jsp?ei=1478739&tp_key=16f12ee090

Replay Call Information
Toronto and international: 1 (416) 764 8677, Passcode: 524127#
North America (toll-free): 1 (888) 390 0541, Passcode: 524127#

The conference call replay will be available until 8:59 pm (Pacific Time) on August 9, 2021. An archive of the audio webcast will also be available on the company's website at http://www.cumtn.com.

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 currently produces approximately 100 million pounds of copper equivalent per year. Copper Mountain also has the development-stage Eva Copper Project in Queensland, Australia and an extensive 2,100 km² 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 Corp.
"Gil Clausen"

Gil Clausen, P.Eng.
President and Chief Executive Officer

Website: www.CuMtn.com

Cautionary Note Regarding Forward-Looking Statements
This news release may contain forward-looking statements and forward-looking information (together, "forward-looking statements") within the meaning of applicable securities laws. All statements, other than statements of historical facts, are forward-looking statements. Generally, forward-looking statements can be identified by the use of terminology such as "plans", "expects", "estimates", "intends", "anticipates", "believes" or variations of such words, or statements that certain actions, events or results "may", "could", "would", "might", "occur" or "be achieved". Forward-looking statements involve risks, uncertainties and other factors that could cause actual results, performance and opportunities to differ materially from those implied by such forward-looking statements. Factors that could cause actual results to differ materially from these forward-looking statements include the successful exploration of the Company's properties in Canada and Australia, the reliability of the historical data referenced in this press release and risks set out in Copper Mountain's public documents, including in each management discussion and analysis, filed on SEDAR at www.sedar.com. Although Copper Mountain believes that the information and assumptions used in preparing the forward-looking statements are reasonable, undue reliance should not be placed on these statements, which only apply as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. Except where required by applicable law, Copper Mountain disclaims any intention or obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

SOURCE Copper Mountain Mining Corp.