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MARI.TO ·

Drilling Progressing at the Marimaca Oxide Deposit; MAMIX campaign expanded

Exploration Programs

News Release

Drilling Progressing at the Marimaca Oxide Deposit; MAMIX campaign expanded

Vancouver, British Columbia, February 9th, 2022 – Marimaca Copper Corp. (“Marimaca Copper” or the “Company”) (TSX: MARI)

is pleased to announce that the Company’s 22,500m infill drilling campaign at the Marimaca Oxide Deposit (the “MOD”) has

commenced. Planning is also near-finalized for the MOD depth extension (“MAMIX”) drilling program which will be completed

in parallel with the MOD infill drilling.

Highlights

• Drilling commenced, first 5 drill holes complete of the 22,500m infill drill program at the MOD

o Drill pad construction in the southern area of the MOD has exposed zones of copper oxide mineralization in areas

previously considered to be unmineralized (see Figure 1)

• Additional drill rigs are expected to be added in the coming weeks for the MAMIX infill campaign

o MAMIX campaign to be increased to up to 10,000m (from 2,500m) given positive metallurgical review of potential

leachability and the addition of planned step-out holes to the north

o Ongoing review of MAMIX target highlights the potential for additional extensions outside of the of the recently

released MAMIX Exploration Target area (refer to the announcement on 19 January 2022)

o Company will seek to accelerate program where possible to ensure drilling is finished in Q2 2022

Sergio Rivera, Vice President Exploration of Marimaca Copper, commented:

“We are pleased with the smooth start of the 2022 infill campaign at the MOD. The program’s objective is to convert our existing

Inferred Resources to the Measured and Indicated Categories for the mid-year MRE, which will then form the basis for the

Feasibility Study planned for the second half of 2022.

“The discovery of the MAMIX zone offers outstanding potential to increase the overall scale of the Marimaca Project. We recently

released an Exploration Target to quantify the potential size of this opportunity and we intend to test it as part of the expanded

MOD infill program.

“The MOD continues to show excellent continuity of near-surface copper oxide mineralization. Drill pad construction has exposed

green copper oxides in the southern portion of the MOD , in areas that were previously interpreted to be barren in the 2019

Resource estimate. We look forward to drilling from these newly constructed platforms and believe there may be upside to our

current MOD resource model.

“We believe we are still in the early chapters of the discovery process at Marimaca and anticipate further growth of the deposit

during 2022.”

Hayden Locke, President and CEO of Marimaca Copper, commented:

“We are now very focused on the upside potential at Marimaca. Our internal work indicates the MAMIX presents a compelling

opportunity to increase the scale of the deposit, both in terms of contained metal tonnes and potential annual production, which

will be used as the basis for the Feasibility Study.

“COVID continues to impact our business, especially with the relatively small size of our team, and we are working hard to

mitigate these impacts on our timeline for releasing the updated MRE and commencing further engineering studies . The

technical workstreams continue to advance rapidly and will be finalised well before commencing the Feasibility Study

engineering. The Company is in the final stages of the Phase V metallurgical program, which will be released when available and

the water supply engagement and permitting preparation are progressing well.”

Figure 1. Reviewing newly constructed drill platforms in the southern portion of MOD

Figure 2. Drilling Underway at the 2022 MOD Infill Program

Figure 3. Plan view of the MOD and initial infill area (program to move from south to north)

Qualified Person

The technical information in this news release, including the information that relates to geology, drilling and mineralizatio n

was prepared under the supervision of, or has been reviewed by Sergio Rivera, Vice President of Exploration, Marimaca Copper

Corp, a geologist with more than 36 years of experience and a member of the Colegio de Geólogos de Chile and of the Institute

of Mining Engineers of Chile, and who is the Qualified Person for the purposes of NI 43 -101 responsible for the design and

execution of the drilling program.

The QP confirms he has visited the project area, has reviewed relevant project information, is responsible for the informatio n

contained in this news release, and consents to its publication.

Contact Information

For further information please visit www.marimaca.com or contact:

Tavistock

+44 (0) 207 920 3150

Jos Simson/Oliver Lamb / Nick Elwes

[email protected]

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 fro m

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 29, 2021, 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.