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LUCA.V ·

LUCA Announces Agreement to Acquire El Barqueño from Agnico Eagle

Mergers & Acquisitions

Luca Mining Corp.

Suite 410, 1111 Melville Street

Vancouver, BC, V6E 3V6, Canada

NEWS RELEASE

LUCA ANNOUNCES AGREEMENT TO ACQUIRE

EL BARQUEÑO FROM AGNICO EAGLE

Vancouver, B.C., September 17, 2026 – Luca Mining Corp. ("Luca" or the "Company") (TSX-V: LUCA; OTCQX: LUCMF;

Frankfurt: Z68) is pleased to announce that it has entered into a definitive asset purchase agreement (the

"Agreement") dated September 17, 2026 with Agnico Eagle Mines Limited ("Agnico Eagle"), an arm’s length party to

Luca, to acquire 100% of the El Barqueño property (the "Project"). All dollar amounts in this news release are in US

dollars unless otherwise specified.

The El Barqueño property covers over 32,000 hectares, is accessible by paved and secondary roads, and is located in

the State of Jalisco, Mexico approximately 100km west of Guadalajara city and proxima te to the municipality of

Guachinango (see Figure 1 below) . The Project is host to a historical (2025 ) mineral resource estimate of 399,265

ounces of gold equivalent at 1. 47 g/t AuEq classified as indicated with an additional 650,046 ounces of gold

equivalent at 1. 43 g/t AuEq inferred (see Figure 2 below). This resource estimate is being treated by Luca as a

historical estimate under National Instrument 43 -101 – Standards of Disclosure for Mineral Projects ("NI 43-101")

and a Qualified Person (as defined in NI 43 -101) has not done sufficient work to classify the historical estimate as a

current mineral resource. The historical estimate should not be relied upon and is being shared strictly for

informational purposes.

Dan Barnholden, Luca's CEO and Director, commented, "The acquisition of El Barqueño will be a highly strategic and

accretive transaction for Luca. We are excited to add a high- quality, high- grade gold- silver-copper development

project to our portfolio of mining assets in Mexico. This acquisition aligns with our growth strategy to use our specific

in-country skills and experience to de-risk mining projects, adding value and realizing benefits for all stakeholders.

Luca is uniquely positioned to create value at El Barqueño and we will use our expertise to advance permitting efforts

at the Project, which we believe is amenable to both open-pit and underground mining methods."

"Furthermore, our exploration team is excited to evaluate the growth potential at El Barqueño with a large-scale,

regional exploration focus. We look forward to building on Agnico Eagle's strong track record of community

involvement, social governance and environmental stewardship at the Project, and we are pleased to add Agnico

Eagle as a significant Luca shareholder."

Paul Gray, Luca 's Vice President of Exploration, added, " El Barqueño is a property with excellent infrastructure, a

first-class geologic and exploration database, and numerous high-priority targets that require follow up exploration.

Upon receipt of exploration permits, Luca's exploration team is excited to build upon these substantial historic

exploration efforts. We are confident that the El Barqueño property will yield many additional exploration discoveries

over the coming years."

Transaction Summary and Timing

On closing, Luca will acquire 100% of the El Barqueño property (the "Transaction") from a Mexican subsidiary of

Agnico Eagle. Consideration to be paid to Agnico Eagle in connection with the Transaction includes:

• An initial payment of $10 million on closing of the Transaction to be satisfied through the issuance of

common shares of Luca (the "Luca Shares").

• Deferred consideration of up to $30 million through milestone -linked payments (the " Contingent

Payments"). At the sole election of Luca, the Contingent Payments may be paid in cash or, subject to certain

exceptions, through the issuance of Luca Shares at each milestone achievement date, or a combination of

both. The Contingent Payments are payable as follows:

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o $15 million payable three (3) months following the commencement of the first drilling program at

the Project; and

o $15 million upon the achievement of commercial production at the Project .

• Additional consideration of up to $20 million in production milestone -linked payments, comprised of: $5

million for every 100,000 gold equivalent ounces produced at the Project up to a maximum of 400,000 gold

equivalent ounces.

• A 2.0% net smelter return ("NSR") interest granted to Agnico Eagle on all metal production solely in respect

of certain areas of the El Barqueño property which host currently defined mineral resources. Luca will have

the right to repurchase one-half of the NSR (reducing the NSR to 1%) at any time for $12.5 million.

Closing of the Transaction is expected to occur in the fourth quarter of 2026, and is subject to the receipt of all

required regulatory approvals, including approval from the Mexican Federal Economic Competition Commission and

the TSX Venture Exchange ("TSXV"), and other customary closing conditions for a transaction of this nature.

El Barqueño Project Background

Agnico Eagle acquired the El Barqueño property through acquisitions of Cayden Resources and Soltoro Ltd. in 2014

and 2015, respectively. Agnico Eagle subsequently conducted approximately 225,000 metres of exploration drilling,

primarily between 2015- 2018. The overall historic exploration effort at El Barqueño totals approximately 300,000

metres of drilling. Mineralized deposits have been defined at the following areas (see Figures 2 and 3 below): Azteca-

Zapoteca-Cuauhtémoc, Angostura, Peña de Oro , and Socorro (Northern deposits) and El Rayo, Soledad, Bolas and

Highway (Southern deposits). The Northern deposits at the El Barqueño property are subject to existing NSR royalties

averaging 3.7%. The Southern deposits are not subject to any pre-existing NSR royalties.

Local geology at the El Barqueño property includes a shallow dipping sequence of Cretaceous to Paleocene volcanic

rocks as well as monzodiorite and diorite intrusives . The main mineralization style at the El Barqueño deposits is

vein-breccia mineralization demonstrating sub- planar brecciated structures containing abundant fragments of

quartz veins. Multi-stage crustiform quartz vein structures, stockwork breccias and fault-vein mineralization are also

observed. Sulphide assemblages include pyrite, chalcopyrite, galena, sphalerite and chalcocite.

The El Barqueño property is not currently permitted for exploration drilling due to the existence of the Jalisco

Regional Ecological Territorial Planning Program ("POETR") which covers portions of the Project (the "Concessions").

A direct amparo proceeding has been instituted before the Fourth District Court for Administrative Matters in the

State of Jalisco regarding the application of the POETR on the relevant Concessions, which were granted prior to the

creation of the POETR (the "Amparo"). An Amparo proceeding is a well-established legal process in Mexico through

which acts or omissions of government authorities may be challenged on constitutional grounds. Luca is working

with Agnico Eagle regarding the ongoing Amparo and intends to continue pursuing a legal pathway to address the

application of the POETR to the project. Luca looks forward to a successful resolution to the POETR and the re -

confirmation of the exploration and development path way for El Barqueño, which will allow the Project to deliver

substantial economic and social benefits to the State of Jalisco and local host communities.

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Figure 1 - El Barqueño Location Map

Note: Resource estimates for other companies are based on publicly available disclosures and S&P Capital IQ data and have not been independently

verified by the Company. Reported estimates may reflect different reporting standards, assumptions and effective dates.

Historic Mineral Resource Estimate

The Project's north and south mineral resource estimates disclosed in Figure 2 below are historical in nature and are

being treated by Luca as historical estimates NI 43- 101. A Qualified Person (as defined in NI 43 -101) has not done

sufficient work to classify the historical estimate as current mineral resources. Luca is not treating the historical

estimate as current mineral resources, and the historical estimate should not be relied upon. It is being shared strictly

for informational purposes. Luca believes that the historical estimate is relevant to an appraisal of the merits of the

Project and forms a basis upon which to develop future exploration programs. While the historical estimate has not

been independently verified by the Company, the public disclosure of the data in accordance with NI 43- 101

indicates that the historical estimate was prepared to a reasonably high standard. Following the closing of the

Transaction, Luca plans to prepare a current mineral resource estimate for El Barqueño, develop exploration targets

and analyze the economics of various scales of production.

In order to verify the historical estimate to a current mineral resource estimate, the Company will need to retain a

Qualified Person to verify historical drilling and assaying methods and validate historical results, revise for current

metal prices, and add any drilling and assaying or other pertinent geological information generated since the last

estimation. There can be no assurance that any of the historical estimates, in whole or in part, will ever become

economically viable.

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Figure 2 – El Barqueño Project Mineral Resource Estimate by Mineralized Zone

(1) Converted to AuEq based on metal prices of $3,800/oz Au, $40.00/oz Ag and $4.80/lb Cu. (2) The historical resource estimate has an effective

date of December 31, 202 5, was prepared by Agnico Eagle, and was disclosed in Agnico Eagle 's February 1 2, 2026 news release, available at

www.agnicoeagle.com under News Releases dated February 12, 2026.

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Figure 3 – El Barqueño Project Map Showing Current Resource Areas

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Advisors and Counsel

ATB Cormark Capital Markets is acting as financial advisor to Luca, and Cassels B rock & Blackwell LLP is acting as

legal advisor to Luca.

About Luca Mining Corp.

Luca Mining Corp. (TSX -V: LUCA, OTCQX: LUCMF, Frankfurt: Z68) is a Canadian mining company with two wholly

owned mines located in the prolific Sierra Madre mineralized belt in Mexico. These mines produce gold, copper,

zinc, silver, and lead, generating strong cash flow. Both mines have considerable development and resource upside

as well as significant exploration potential.

The Company' s Campo Morado Mine hosts VMS -style, polymetallic mineralization within a large land package

comprising 121 square kilometres. It is an underground operation, producing zinc, copper, gold, silver and lead. The

mine is located in Guerrero State.

The Tahuehueto Mine is a large property of over 100 square kilometres in Durango State. The project hosts

epithermal gold and silver vein -style mineralization. Tahuehueto is a newly constructed underground mining

operation producing primarily gold and silver. Luca has successfully commissioned its mill and is now in commercial

production at Tahuehueto.

Qualified Person

The technical information contained in this news release has been reviewed and approved by Mr. Paul D. Gray,

P.Geo., Vice President Exploration at Luca Mining. Mr. Gray is a Qualified Person for the Company as defined by NI

43-101.

On Behalf of the Board of Directors

(signed) "Dan Barnholden"

Dan Barnholden, Chief Executive Officer

Contact Information:

Sophia Shane

Director of Investor Relations

[email protected]

+1 604 306 6867

Maximilian Myers

Manager Corp Dev & Investor Relations

[email protected]

For more information, please visit: www.lucamining.com

Cautionary Note Regarding Forward-Looking Statements

Statements contained in this news release that are not historical facts are " forward-looking information " or

"forward-looking statements " (collectively, "Forward-Looking Information ") within the meaning of applicable

Canadian securities laws. Forward-Looking Information includes, but is not limited to: the closing of the Transaction

and the anticipated timing thereof; the anticipated benefits of the Transaction, including anticipated synergies and

the impact of the Transaction on the Company's operations, financial condition, and overall strategy; the Company's

plans for and the potential success of future exploration and development activities, including expectations with

respect to permitting, development and other work that may be required; the proposed timing of the Amparo

proceeding and likelihood of success; future exploration activities and the anticipated results thereof, including the

timing and results of future resource and/or reserve estimates; resource potential, including the potential quantity

and/or grade of minerals, or the potential size of a m ineralized zone; plans with respect to existing and new

infrastructure; receipt of all necessary approvals with respect to the Transaction, including but not limited to the

approval of the Mexican Federal Economic Competition Commission and the TSX V; satisfaction of the various

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conditions to closing of the Transaction and payment of the future contingent consideration; other statements

relating to the financial and business prospects of the Company; information as to the Company's strategy, plans or

future financial or operating performance; and other events or conditions that may occur in the future .

In certain cases, Forward-Looking Information can be identified using words and phrases such as "plans"," expects",

"scheduled", "estimates", "forecasts", "intends", "anticipates" or variations of such words and phrases. In preparing

the Forward -Looking Information in this news release, the Company has applied several material assumptions,

including, but not limited to : the satisfaction of all conditions to closing the Transaction ; the successful completion

of the Transaction and the Company's ability to achieve the anticipated benefits therefrom; the accuracy of historical

and forward-looking operational information and estimates; the Company's ability to successfully integrate the El

Barqueño project into the Company's existing operations; the ability of the Company to successfully obtain all

exploration permits; the ability of the Company to complete the necessary work required with respect to the El

Barqueño and the anticipated benefits therefrom; the continuing accuracy of statements regarding El Barqueño,

including the results of technical studies and the anticipated capital and operations costs, concession or claim

renewal, permitting, mineral resource and/or reserve estimates, the cost of development, and other expected

attributes of the properties, the timing of any environmental assessment processes, changes to configuration that

may be requested as a result of stakeholder or government input to the environmental assessment processes,

government regulations and permitting timelines; the future price of gold and other metals; currency exchange rates

and interest rates; favourable operating conditions; political stability; timely receipt of governmental approvals,

licenses, and permits (and renewals thereof); access to necessary financing; stability of labour markets and in market

conditions in general; availability of equipment; the accuracy of mineral resource estimates, and of any metallurgical

testing completed to date; the costs and expendit ures to complete the Company 's programs and goals; the

speculative nature of mineral exploration and development and mining operations in general; there being no

significant disruptions affecting the development and operation of the Company's properties; the availability of

certain consumables and services and the prices for power and other key supplies being approximately consistent

with assumptions; labour and materials costs being approximately consistent with assumptions; assumptions made

in mineral resource estimates, including, b ut not limited to, geological interpretation, grades, metal price

assumptions, metallurgical and mining recovery rates, geotechnical and hydrogeological assumptions, capital and

operating cost estimates, and general marketing factors; requirements for addi tional capital; environmental risks;

general business and economic conditions; delays in obtaining, or the inability to obtain, third- party contracts,

equipment, supplies and governmental or other approvals; changes in law, including the enactment of mining law

reforms; accidents; labour disputes; unavailability of appropriate land use permits; changes to land usage

agreements and other risks of the mining industry generally; the inability to obtain financing required for the

completion of exploration and d evelopment activities; changes in business and economic conditions; international

conflicts; other factors beyond the Company's control; and those factors included herein and elsewhere in the

Company's public disclosure.

Although the Company has attempted to identify important factors that could cause actual results to differ

materially, there may be other factors that cause results not to be as anticipated, estimated, or intended. There can

be no assurance that such information will prove to be accurate as actual developments or events could cause results

to differ materially from those anticipated. These include, among others, the factors described or referred to

elsewhere herein and include unanticipated and/or unusual events. Many of such factors are beyond the Company's

ability to predict or control.

The Forward-Looking Information included in this news release is expressly qualified by the foregoing cautionary

statements. Readers of this news release are cautioned not to put undue reliance on the Forward -Looking

Information due to its inherent uncertainty. The Company disclaims any intent or obligation to update any Forward-

Looking Information, whether as a result of new information, future events or results or otherwise, unless required

under applicable laws. This Forward-Looking Information should not be relied upon as representing management's

views as of any date subsequent to the date of this news release.

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Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX

Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.