Marimaca Exploration Webinar and Live Q&A

Marimaca Copper Corp. (“Marimaca Copper” or the “Company”) (TSX: MARI)

 will host an Exploration Webinar and Live Q&A with Sergio Rivera, Vice President Exploration, and Hayden Locke, President & CEO, to discuss the takeaways of the 2022 exploration campaign on December 5th, 2022 at 11:00am Eastern Standard Time (4:00pm GMT / 1:00pm CLST / 8:00am PST).

Sign-up is available via https://www.investormeetcompany.com/marimaca-cooper-corp/register-investor.

Questions can be submitted pre-event via the Investor Meet Company dashboard until 9:00am the day before the meeting or at any time during the live presentation.

Contact InformationFor further information please visit www.marimaca.com or contact:

Tavistock[phone]Emily Moss / Adam Baynes

[e-mail]

Forward Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Forward-looking statements reflect the beliefs, opinions and projections on the date the statements are made and are based upon a number of assumptions and estimates that, while considered reasonable by Marimaca Copper, are inherently subject to significant business, economic, competitive, political and social uncertainties and contingencies. Many factors, both known and unknown, could cause actual results, performance or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such forward-looking statements and the parties have made assumptions and estimates based on or related to many of these factors. Such factors include, without limitation: risks related to share price and market conditions, the inherent risks involved in the mining, exploration and development of mineral properties, the uncertainties involved in interpreting drilling results and other geological data, fluctuating metal prices, the possibility of project delays or cost overruns or unanticipated excessive operating costs and expenses, uncertainties related to the necessity of financing, the availability of and costs of financing needed in the future as well as those factors disclosed in the annual information form of the Company dated March 28, 2022, the final short form base prospectus and other filings made by the Company with the Canadian securities regulatory authorities (which may be viewed at www.sedar.com). Accordingly, readers should not place undue reliance on forward-looking statements. Marimaca Copper undertakes no obligation to update publicly or otherwise revise any forward-looking statements contained herein whether as a result of new information or future events or otherwise, except as may be required by law.

Neither the Toronto Stock Exchange nor the Investment Industry Regulatory Organization of Canada accepts responsibility for the adequacy or accuracy of this release.