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Capstone Mining Announces Filing of Independent Technical Reports FOR the Mantos Blancos and Mantoverde Mines

Technical Reports (NI 43-101)

January 5, 2022

CAPSTONE MINING ANNOUNCES FILING OF INDEPENDENT TECHNICAL REPORTS

FOR THE MANTOS BLANCOS AND MANTOVERDE MINES

Vancouver, British Columbia - Capstone Mining Corp. (“Capstone” or the “Company”) (TSX:CS) announces that,

further to its news release dated November 30, 2021 (the “Release”), it has filed technical reports for Mantos

Copper’s Mantos Blancos and Mantoverde mines entitled “ Mantos Blancos Mine NI 43 -101 Technical Report

Antofagasta / Región de Antofagasta, Chile ” and “Mantoverde Mine and Mantoverde Development Project NI 43 -

101 Technical Report Chañaral / Región de Atacama, Chile” (the “Reports”). The reports are effective November

29, 2021 and were independently prepared by NCL, Golder Associates and GT Metallurgy in accordance with

Canadian Securities Administrators' National Instrument 43 -101 and can be found on the Company ’s website at

www.capstonemining.com and under the Company's profile at www.sedar.com.

There are no material differences in the information in the Reports and the information contained in the Release.

ABOUT CAPSTONE MINING CORP.

On November 30, 2021, Capstone Mining and Mantos Copper announced that they have en tered into a definitive

agreement to combine pursuant to a plan of arrangement under the Business Corporations Act (British Columbia).

Upon completion of the Transaction, the new Company would be renamed Capstone Copper Corp. (Capstone

Copper).

Capstone Mining Corp. is a Canadian base metals mining company, focused on copper. We are committed to the

responsible development of our assets and the environments in which we operate. Our two producing mines are

the Pinto Valley copper mine located in Arizona, US and the Cozamin copper -silver mine in Zacatecas State,

Mexico. In addition, Capstone owns 100% of Santo Domingo, a large scale, fully permitted, copper-iron-gold project

in Region III, Chile, as well as a portfolio of exploration properties. Capstone's strategy is to focus on the optimization

of operations and assets in politically stable, mining -friendly regions, centred in the Americas. Our headquarters

are in Vancouver, Canada and we are listed on the Toronto Stock Exchange (TSX) under the symbol CS.

Further information is available at www.capstonemining.com.

For further information please contact:

Jerrold Annett, SVP, Strategy and Capital Markets

647-273-7351

[email protected]

Kettina Cordero, Director Investor Relations & Communications

604-262-9794

[email protected]

CAUTIONARY NOTE REGARDING FORWARD-LOOKING INFORMATION

This document contains “forward-looking information” within the meaning of Canadian securities legislation and “forward-looking statements”

within the meaning of the United States Private Securities Litigation Reform Act of 1995 (collectively, “forward-looking statements”). These

forward-looking statements are made as of the date of this document and the Company does not intend, and does not assume any obligation,

to update these forward-looking statements, except as required under applicable securities legislation.

Forward-looking statements relate to future events or future performance and reflect our expectations or beliefs regarding future events and the

impacts of the ongoing and evolving COVID -19 pandemic. Forward-looking statements include, but are not limited to, statements with respect

to the filing of a final base shelf prospectus, future offerings of securities and updated technical reports or technical information. In addition, the

potential effects of the COVID -19 pandemic on our business and operations are unknown at this time, including Capstone’s ability to manage

challenges and restrictions arising from COVID-19 in the communities in which Capstone operates and our ability to continue to safely operate

and to safely return our business to normal operations. The impact of COVID -19 to Capstone is dependent on a number of factors outside of

NEWS RELEASE

TSX:CS ● capstonemining.com

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our control an d knowledge, including the effectiveness of the measures taken by public health and governmental authorities to combat the

spread of the disease, global economic uncertainties and outlook due to the disease, and the evolving restrictions relating t o mining activities

and to travel in certain jurisdictions in which we operate. In certain cases, forward-looking statements can be identified by the use of words such

as “anticipates”, “approximately”, “believes”, “budget”, “estimates”, expects”, “forecasts”, “gu idance”, intends”, “plans”, “scheduled”, “target”, or

variations of such words and phrases, or statements that certain actions, events or results “be achieved”, “could”, “may”, “m ight”, “occur”,

“should”, “will be taken” or “would” or the negative of these terms or comparable terminology. In this document certain forward-looking statements

are identified by words including “anticipated”, “expected”, “guidance” and “plan”. By their very nature, forward-looking statements involve known

and unknown risks, unce rtainties and other factors that may cause our actual results, performance or achievements to be materially different

from any future results, performance or achievements expressed or implied by the forward -looking statements. Such factors include, amongst

others, risks related to inherent hazards associated with mining operations and closure of mining projects, future prices of copper and other

metals, compliance with financial covenants, surety bonding, our ability to raise capital, Capstone’s ability to acquire properties for growth,

counterparty risks associated with sales of our metals, use of financial derivative instruments and associated counterparty risks, foreign currency

exchange rate fluctuations, market access restrictions or tariffs, changes in general economic conditions, availability of water, accuracy of

Mineral Resource and Mineral Reserve estimates, operating in foreign jurisdictions with risk of changes to governmental regulation, compliance

with governmental regulations, compliance with e nvironmental laws and regulations, reliance on approvals, licenses and permits from

governmental authorities and potential legal challenges to permit applications, contractual risks including but not limited t o, our ability to meet

the completion test requirements under the Cozamin Silver Stream Agreement with Wheaton Precious Metals, our ability to meet certain closing

conditions under the Santo Domingo Gold Stream Agreement with Wheaton Precious Metals, acting as Indemnitor for Minto Explora tion Ltd.’s

surety bond obligations post divestiture, impact of climate change and changes to climatic conditions at our Pinto Valley and Cozamin operations,

changes in regulatory requirements and policy related to climate change and GHG emissions, land reclamation and mine closure obligations,

risks relating to widespread epidemics or pandemic outbreak including the COVID -19 pandemic; the impact of COVID -19 on our workforce,

suppliers and other essential resources and what effect those impacts, if they occur, would have on our business, including our ability to access

goods and supplies, the ability to transport our products and impacts on employee productivity, the risks in connection with the operations, cash

flow and results of Capstone relating to the unknown duratio n and impact of the COVID -19 pandemic, uncertainties and risks related to the

potential development of the Santo Domingo Project, increased operating and capital costs, increased cost of reclamation, challenges to title to

our mineral properties, increased taxes in jurisdictions the Company operates or is subject to tax, changes in tax regimes we are subject to and

any changes in law or interpretation of law may be difficult to react to in an efficient manner, maintaining ongoing social l icense to operate,

dependence on key management personnel, potential conflicts of interest involving our directors and officers, corruption and bribery, limitations

inherent in our insurance coverage, labour relations, increasing energy prices, competition in the mining indu stry including but not limited to

competition for skilled labour, risks associated with joint venture partners, our ability to integrate new acquisitions and n ew technology into our

operations, cybersecurity threats, legal proceedings, and other risks of the mining industry as well as those factors detailed from time to time in

the Company’s public filings, including the Shelf Prospectus, which are filed and available for review under the Company’s profile on SEDAR at

www.sedar.com. Although the Company has attempted to identify important factors that could cause our actual results, performance or

achievements to differ materially from those describ ed in our forward -looking statements, there may be other factors that cause our results,

performance or achievements not to be as anticipated, estimated or intended. There can be no assurance that our forward -looking statements

will prove to be accurate, as our actual results, performance or achievements could differ materially from those anticipated in such statements.

Accordingly, readers should not place undue reliance on our forward-looking statements.

CAUTIONARY NOTE TO UNITED STATES INVESTORS REGARDING PRESENTATION OF MINERAL RESERVE AND MINERAL

RESOURCE ESTIMATES

As a British Columbia corporation and a “reporting issuer” under Canadian securities laws, we are required to provide disclos ure regarding our

mineral properties in accordance with Canadian National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). NI 43-

101 is a rule developed by the Canadian Securities Administrators that establishes standards for all public disclosure an issuer makes of scientific

and technical information concerning mineral projects. In accordance with NI 43-101, we use the terms mineral reserves and resources as they

are defined in accordance with the CIM Definition Standards on mineral reserves and resources (the “CIM Definition Standards” ) adopted by

the Canadian Institute of Mining, Metallurgy and Petroleum. In particular, the terms “mineral reserve”, “proven mineral reserve”, “probable mineral

reserve”, “mineral resource”, “measured mineral resource”, “indicated mineral resource” and “infer red mineral resource” used in this news

release and the documents incorporated by reference herein and therein, are Canadian mining terms defined in accordance with CIM Definition

Standards. These definitions differ from the definitions in the disclosure r equirements promulgated by the SEC. Accordingly, information

contained in this news release and the documents incorporated by reference herein may not be comparable to similar informatio n made public

by U.S. companies reporting pursuant to SEC disclosure requirements.

United States investors are also cautioned that while the SEC will now recognize “measured mineral resources”, “indicated min eral resources”

and “inferred mineral resources”, investors should not assume that any part or all of the mineralization in these categories will ever be converted

into a higher category of mineral resources or into mineral reserves. Mineralization described using these terms has a greate r amount of

uncertainty as to their existence and feasibility than mineralization that has been characterized as reserves. Accordingly, investors are cautioned

not to assume that any “measured mineral resources”, “indicated mineral resources”, or “inferred mineral resources” that we r eport are or will

be economically or legally mineable. Further, “inferred resources” have a greater amount of uncertainty as to their existence and as to whether

they can be mined legally or economically. Therefore, United States investors are also cautioned not to assume that all or any part of the inferred

resources exist. In accordance with Canadian rules, estimates of “inferred mineral resources” cannot form the basis of feasibil ity or other

economic studies, except in limited circumstances where permitted under NI 43-101.

NATIONAL INSTRUMENT 43-101 COMPLIANCE

Unless otherwise indicated, Capstone has prepared the technical information in this news release (“Technical Information”) based on information

contained in the technical reports, Annual Information Form and news releases (collectively the “Disclosure D ocuments”) available under

Capstone Mining Corp.’s company profile on SEDAR at www.sedar.com. Each Disclosure Document was prepared by or under the supervision

of a qualified person (a “Qualified Person”) as defined in National Instrument 43 -101 – Standards of Disclosure for Mineral Projects of the

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Canadian Securities Administrators (“NI 43 -101”). Readers are encouraged to review the full text of the Disclosure Documents which qualifies

the Technical Information. Readers are advised that Mineral Resources t hat are not Mineral Reserves do not have demonstrated economic

viability. The Disclosure Documents are each intended to be read as a whole, and sections should not be read or relied upon out of context. The

Technical Information is subject to the assumptions and qualifications contained in the Disclosure Documents.

The disclosure of Scientific and Technical Information in this news release was reviewed and approved by Carlos Guzmán, RM CMC, FAusIMM,

Principal, Project Director, NCL, Gustavo Tapia, RM CMC, Metallurgical and Process Consultant, GT Metallurgy, and Ronald Turner, MAusIMM

CP(Geo), Golder Associates all Qualified Persons under NI 43-101.