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AG.TO ·

First Majestic Announces Agreement to Acquire Gatos Silver

Mergers & Acquisitions

First Majestic Announces Agreement to

Acquire Gatos Silver

Vancouver, British Columbia--(Newsfile Corp. - September 5, 2024) - First Majestic Silver Corp. (NYSE:

AG) (TSX: AG) (FSE: FMV) ("First Majestic") and Gatos Silver, Inc. (NYSE: GATO) (TSX: GATO)

("Gatos") are pleased to announce they have entered into a definitive merger agreement (the "Definitive

Agreement") pursuant to which First Majestic will acquire all of the issued and outstanding common

shares of Gatos (the "Transaction"). Gatos is a silver dominant producer with a 70% interest in the Los

Gatos Joint Venture, which owns the producing Cerro Los Gatos underground silver mine in Chihuahua,

Mexico.

Under the terms of the Definitive Agreement, Gatos shareholders will receive 2.550 common shares of

First Majestic for each common share of Gatos held. The consideration implies a total offer value of

US$13.49 per common share of Gatos based on the closing price of First Majestic's common shares on

the New York Stock Exchange (the "NYSE") on September 4, 2024, and represents a 16% premium

based on each company's closing prices and 20-day volume weighted average prices ("VWAP") on the

NYSE ending September 4, 2024. The proposed Transaction implies a total equity value for Gatos of

approximately US$970 million. Following completion of the Transaction, existing Gatos shareholders will

own approximately 38% of First Majestic shares on a fully-diluted basis.

TRANSACTION HIGHLIGHTS

Consolidates three world-class, producing silver mining districts in Mexico under one

banner:

Cerro Los Gatos, San Dimas and Santa Elena collectively provide the foundation of a

diversified, intermediate primary silver producer

Enhances production profile with strong margins:

Combined annual production of 30-32

million ounces of silver-equivalent, including 15-16 million ounces of silver at all-in sustaining costs

of US$18.00-US$20.00 per silver-equivalent ounce

1

Bolsters free cash flow generation:

Gatos expected to immediately contribute annual free cash

flow of approximately US$70 million to the combined entity

2

Leverages a highly experienced combined team with a strong track record of value

creation in Mexico:

Over 20 years of experience operating in Mexico, with an emphasis on

socially responsible mining, community engagement and value creation

Maintains peer-leading exposure to silver:

Over 50% of pro forma revenue derived from silver

compared to an average of ~30% for intermediate silver producing peers

Creates a 350,000 hectare highly prospective land package which has yielded a history of

exploration success and economic discoveries:

Cerro Los Gatos contributes approximately

103,000 hectares of unencumbered land with significant new discovery potential to an existing

package of approximately 245,000 hectares across San Dimas, Santa Elena, and other First

Majestic properties, which has yielded a history of exploration success and economic discoveries

Results in a larger company with a strengthened balance sheet, leading trading liquidity

and improved capital markets profile:

Pro forma market capitalization approaching US$3

billion, average daily trading liquidity of approximately US$49 million

3

, and well-positioned to

deliver increased shareholder value

Realizes meaningful synergies:

Corporate cost savings, supply chain and procurement

efficiencies, cross-pollination of expertise, and acceleration and optimization of internal projects

and exploration programs all expected to deliver meaningful value creation for all shareholders

Keith Neumeyer, President & Chief Executive Officer of First Majestic, commented,

"The acquisition of

Gatos Silver is a highly compelling and transformative transaction that meaningfully enhances First

Majestic's operating platform through the addition of 70% of Cerro Los Gatos - a high quality, long-life,

unencumbered, free cash flow generating asset in the mining-friendly state of Chihuahua, Mexico.

Mexico is a country that First Majestic has operated in for over 20 years, and we are extremely excited

to deploy our operating expertise within these mining districts to deliver operational synergies and

exploration success for our shareholders. We look forward to working with the operating team at Cerro

Los Gatos and with our new joint venture partner Dowa Metals & Mining Co., Ltd. ("Dowa"), and we are

pleased to welcome all Gatos shareholders as they transition into being shareholders of First Majestic

going forward."

Dale Andres, Chief Executive Officer of Gatos, commented,

"We are pleased to enter into this

transaction with First Majestic, as it provides our shareholders an attractive immediate premium and

the opportunity to retain exposure to the high quality, long-life Cerro Los Gatos asset, now within a

well-established intermediate primary silver producer. This transaction also provides our shareholders

with the benefits of First Majestic's enhanced capital markets presence, liquidity and balance sheet,

while combining its local Mexican expertise and history of operations with our history of successful

performance. I want to thank the Cerro Los Gatos operating team for its dedication. I am confident that

the combination of our strong operating teams will create an opportunity to generate significant value

for all shareholders

."

BENEFITS TO FIRST MAJESTIC SHAREHOLDERS

Adds a third cornerstone, long-life, low-cost, producing underground mine with exploration potential

to the First Majestic portfolio

Bolsters anticipated annual attributable production by approximately 6 million ounces of silver and

9 million ounces of silver-equivalent based on Gatos' 2024 production guidance

Cerro Los Gatos generates significant free cash flow and enhances portfolio diversification

Accretive on all key metrics including NAV, cash flow, production, and Mineral Reserves to First

Majestic shareholders

Adds concessions covering approximately 103,000 hectares of unencumbered (no material

royalties or streams) land at Cerro Los Gatos, with significant exploration potential and supported

by a large base of Mineral Reserves and Resources

Builds upon First Majestic's strengths in Mexico and underground mining expertise

Enhances scale and capital markets presence, and solidifies position as an intermediate primary

silver producer

BENEFITS TO GATOS SHAREHOLDERS

Attractive immediate premium of 16% on a spot and 20-day VWAP basis

Meaningful equity participation in an intermediate primary silver producer with a highly diversified

portfolio, including three world-class, mining districts

Unique opportunity to gain production diversification while combining Cerro Los Gatos with

complementary, high-quality assets

Combination provides enhanced capital markets presence and trading liquidity

Superior financial strength and flexibility to support advancement of continued margin

improvement, growth projects and exploration programs

Combined land package of approximately 350,000 hectares with significant exploration potential

Ability to leverage First Majestic's long-term good standing with local governments, unions and

community

TRANSACTION SUMMARY

The Transaction will be effected by way of a reverse triangular merger under Delaware law, whereby a

wholly-owned Delaware subsidiary of First Majestic will merge with and into Gatos, with Gatos surviving

the merger as a direct, wholly-owned subsidiary of First Majestic. Under the terms of the Definitive

Agreement, Gatos' shareholders will receive 2.550 common shares of First Majestic for each common

share of Gatos held as of the effective date of the Transaction. At closing, First Majestic will issue an

aggregate of approximately 177 million common shares to Gatos shareholders, and following

completion of the Transaction, existing Gatos shareholders will own approximately 38% of the issued

and outstanding common shares of First Majestic on a fully-diluted basis.

The Transaction is expected to close in early 2025, subject to the satisfaction of customary closing

conditions, including approvals of the shareholders of First Majestic and Gatos, clearance under

Mexican anti-trust laws, and approval of the listing of the First Majestic common shares to be issued

under the Transaction on both the Toronto Stock Exchange and the NYSE. The Definitive Agreement

and the Transaction have been unanimously approved by the board of directors of each of First Majestic

and Gatos, and in the case of Gatos, on the unanimous recommendation of a special committee of

independent directors of Gatos.

All directors and certain executive officers of Gatos, as well as the Electrum Group, which owns

approximately 32% of the issued and outstanding common shares of Gatos, have entered into voting

support agreements with First Majestic pursuant to which they have agreed, subject to the terms of such

agreements, to vote their Gatos shares in favour of the Transaction.

ADVISORS AND COUNSEL

National Bank Financial acted as exclusive financial advisor to First Majestic. TD Securities provided a

fairness opinion to the board of directors of First Majestic. Bennett Jones LLP and Dorsey & Whitney

LLP acted as legal advisors to First Majestic.

BofA Securities acted as exclusive financial advisor to Gatos. GenCap Mining Advisory Ltd. provided a

fairness opinion to the Special Committee of the Gatos board of directors. White & Case LLP and

McCarthy Tetrault LLP acted as legal advisors to Gatos.

CONFERENCE CALL DETAILS

First Majestic and Gatos will host a joint conference call and webcast on

Thursday, September 5,

2024, at 8:00 a.m. (PT) / 11:00 a.m. (ET)

to discuss the Transaction.

To participate in the conference call, please use the following dial-in numbers:

Canada & USA Toll-Free:

+1-844-763-8274

Outside of Canada & USA:

+1-647-484-8814

Toll-Free Germany:

+49-69-1741-5718

Toll-Free UK:

+44-20-3795-9972

Participants should dial-in at least 10 minutes prior to the start of the call to ensure placement into the

conference on time.

A live webcast of the call will be accessible through the "September 5, 2024 Webcast Link" on the First

Majestic home page at

www.firstmajestic.com

and on Gatos' website at

www.gatossilver.com

. A

webcast archive will be available approximately one hour after the end of the event and will be

accessible for three months through the same link as the live event.

A recording of the conference call will be available for telephone replay approximately one hour after the

end of the event by calling:

USA Toll-Free:

+1-877-344-7529

Canada Toll-Free:

+1-855-669-9658

Outside of Canada & USA:

+1-412-317-0088

Access Code:

4670537#

The telephone audio replay will be available for seven days following the end of the event.

ABOUT FIRST MAJESTIC

First Majestic is a publicly traded mining company focused on silver and gold production in Mexico and

the United States. First Majestic presently owns and operates the San Dimas Silver/Gold Mine, the

Santa Elena Silver/Gold Mine, and the La Encantada Silver Mine, all located in Mexico, as well as a

portfolio of development and exploration assets, including the Jerritt Canyon Gold project located in

northeastern Nevada, U.S.A.

First Majestic is proud to own and operate its own minting facility, First Mint, LLC, and to offer a portion

of its silver production for sale to the public. Bars, ingots, coins and medallions are available for

purchase online at

www.firstmint.com

, at some of the lowest premiums available.

Investors and Media Contact:

Darrell Rae

Investor Relations

[email protected]

(604) 688 3033

ABOUT GATOS

Gatos is a silver dominant exploration, development and production company that discovered a new

silver and zinc-rich mineral district in southern Chihuahua State, Mexico. As a 70% owner of the Los

Gatos Joint Venture (the "LGJV"), the Company is primarily focused on operating the Cerro Los Gatos

mine and on growth and development of the Los Gatos district. The LGJV consists of approximately

103,000 hectares of mineral rights, representing a highly prospective and under-explored district with

numerous silver-zinc-lead epithermal mineralized zones identified as priority targets.

Investors and Media Contact:

André van Niekerk

Chief Financial Officer

[email protected]

(604) 424 0984

Important Information for Investors and Shareholders about the Transaction and Where to

Find It

This news release is not intended to and does not constitute an offer to sell or the solicitation

of an offer to subscribe for or buy or an invitation to purchase or subscribe for any securities

of First Majestic or Gatos or the solicitation of any vote or approval in any jurisdiction, nor shall

there be any sale, issuance or transfer of securities of First Majestic or Gatos in any jurisdiction

in contravention of applicable law. This news release may be deemed to be soliciting material

relating to the Transaction.

In connection with the proposed transaction between First Majestic and Gatos pursuant to the Definitive

Agreement and subject to future developments, First Majestic will file with the U.S. Securities and

Exchange Commission (the "SEC") a registration statement on Form F-4 that is expected to include a

Proxy Statement of Gatos that will also constitute a Prospectus of First Majestic (the "Proxy

Statement/Prospectus") and other documents. First Majestic will also file a management proxy circular in

connection with the transaction with applicable Canadian securities regulatory authorities. This news

release is not a substitute for any registration statement, proxy statement, prospectus or other document

First Majestic or Gatos may file with the SEC or Canadian securities regulatory authorities in connection

with the pending Transaction. Gatos plans to mail to the Gatos stockholders the definitive Proxy

Statement/Prospectus in connection with the transaction and First Majestic will deliver its proxy circular

to First Majestic shareholders. INVESTORS AND SECURITY HOLDERS OF GATOS AND FIRST

MAJESTIC ARE URGED TO READ THE PROXY STATEMENT/PROSPECTUS AND MANAGEMENT

PROXY CIRCULAR, RESPECTIVELY, AND ANY OTHER RELEVANT DOCUMENTS FILED OR TO

BE FILED WITH THE SEC OR CANADIAN SECURITIES REGULATORY AUTHORITIES CAREFULLY

IN THEIR ENTIRETY IF AND WHEN THEY BECOME AVAILABLE BEFORE MAKING ANY VOTING OR

INVESTMENT DECISION WITH RESPECT TO THE TRANSACTION BECAUSE THEY WILL CONTAIN

IMPORTANT INFORMATION ABOUT FIRST MAJESTIC, GATOS, THE TRANSACTION AND

RELATED MATTERS. Investors and security holders will be able to obtain free copies of the Proxy

Statement/Prospectus (when available), the filings with the SEC that will be incorporated by reference

into the Proxy Statement/Prospectus and other documents filed with the SEC by First Majestic and

Gatos containing important information about First Majestic or Gatos and the Transaction through the

website maintained by the SEC at www.sec.gov. Investors will also be able to obtain free copies of the

management proxy circular and other documents filed with Canadian securities regulatory authorities by

First Majestic, through the website maintained by the Canadian Securities Administrators at

www.sedarplus.com. In addition, investors and security holders will be able to obtain free copies of the

documents filed by First Majestic with the SEC and Canadian securities regulatory authorities on First

Majestic's website at www.firstmajestic.com or by contacting First Majestic's investor relations team.

Copies of the documents filed with the SEC by Gatos will be available free of charge on Gatos's

website

or by contacting Gatos'

investor relations

team.

Participants in the Merger Solicitation

First Majestic, Gatos and certain of their respective directors, executive officers and employees may be

considered participants in the solicitation of proxies in connection with the proposed Transaction.

Information regarding the persons who may, under the rules of the SEC, be deemed participants in the

solicitation of the shareholders of First Majestic and the stockholders of Gatos in connection with the

Transaction, including a description of their respective direct or indirect interests, by security holdings or

otherwise, will be included in the Proxy Statement/Prospectus described above and other relevant

documents when it is filed with the SEC and Canadian securities regulatory authorities in connection

with the Transaction. Additional information regarding First Majestic's directors and executive officers is

also included in First Majestic's Notice of Annual Meeting of Shareholders and 2024 Proxy Statement,

which was filed with the SEC and Canadian securities regulatory authorities on April 15, 2024, and

information regarding Gatos's directors and executive officers is also included in Gatos's Annual Report

on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 20, 2024, as

amended by Amendment No. 1 to such annual report filed with the SEC on May 6, 2024 and Gatos'

2024 Proxy Statement for its 2024 Annual Meeting of Stockholders, which was filed with the SEC on

April 25, 2024. These documents are available free of charge as described above.

Non-GAAP Financial Measures

This news release includes reference to certain financial measures which are not standardized

measures under the parties' respective financial reporting frameworks. These measures include all-in

sustaining costs (or "AISC") per payable silver equivalent ounce and free cash flow. The parties believe

that these measures, together with measures determined in accordance with GAAP or IFRS, provide

investors with an improved ability to evaluate the underlying performance of First Majestic. These

measures are widely used in the mining industry as a benchmark for performance but do not have any

standardized meaning prescribed under IFRS, and therefore they may not be comparable to similar

measures disclosed by other companies. The data is intended to provide additional information and

should not be considered in isolation or as a substitute for measures of performance prepared in

accordance with IFRS. For a complete description of how First Majestic calculates such measures and a

reconciliation of certain measures to GAAP terms please see "Non-GAAP Measures" in First Majestic's

most recent management discussion and analysis filed on SEDAR+ at

www.sedarplus.ca

and EDGAR

at

www.sec.gov/edgar

.

For a complete description of how Gatos calculates such measures and a reconciliation of certain

measures to GAAP terms, please see "Non-GAAP Measures" in Gatos's Annual Report on Form 10-K

for the year ended December 31, 2023 filed with the SEC on February 20, 2024, as amended by

Amendment No. 1 to such annual report filed with the SEC on May 6, 2024 at

www.sec.gov/edgar

.

Cautionary Note Regarding Forward-Looking Statements

This news release contains "forward-looking statements" within the meaning of Section 27A of the

Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as

amended, which are intended to be covered by the safe harbor created by such sections and other

applicable laws and "forward-looking information" under applicable Canadian securities laws

(collectively, "forward-looking statements"). These statements relate to future events or the future

performance, business prospects or opportunities of First Majestic and/or Gatos that are based on

forecasts of future results, estimates of amounts not yet determinable and assumptions of management

of First Majestic and/or Gatos made in good faith in light of management's experience and perception of

historical trends, current conditions and expected future developments. Forward-looking statements in

this news release include, but are not limited to, statements with respect to: closing of the Transaction

and the terms and timing related thereto; the anticipated benefits of the Transaction to First Majestic,

Gatos and their respective shareholders including increased shareholder value; the timing and receipt of

required shareholder, stock exchange and regulatory approvals; satisfaction of the conditions to

completion of the Transaction; the anticipated timing of mailing proxy statements and circulars regarding

the Transaction; liquidity, enhanced value and capital markets profile of First Majestic; cash flow and

revenue estimates; future growth potential for First Majestic, Gatos and their respective businesses; life

of mine estimates; estimates regarding the future price of silver and other metals, asset quality and

geographic spread, the estimation of mineral reserves and resources, the realization of mineral reserve

estimates, and the timing and amount of estimated future production, recovery rates, costs of production

and all-in sustaining costs, capital expenditures, the costs and timing of the development of new

deposits and exploration programs and expected listing of shares on the New York Stock Exchange and

the Toronto Stock Exchange. Assumptions may prove to be incorrect and actual results may differ

materially from those anticipated. Consequently, guidance cannot be guaranteed. As such, investors are

cautioned not to place undue reliance upon guidance and forward-looking statements as there can be no

assurance that the plans, assumptions or expectations upon which they are placed will occur. All

statements other than statements of historical fact may be forward-looking statements. Statements

concerning proven and probable mineral reserves and mineral resource estimates may also be deemed

to constitute forward-looking statements to the extent that they involve estimates of the mineralization that

will be encountered as and if the property is developed, and in the case of measured and indicated

mineral resources or proven and probable mineral reserves, such statements reflect the conclusion

based on certain assumptions that the mineral deposit can be economically exploited. Any statements

that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections,

objectives or future events or performance (often, but not always, using words or phrases such as "seek",

"anticipate", "plan", "continue", "estimate", "expect", "may", "will", "project", "predict", "forecast",

"potential", "target", "intend", "could", "might", "should", "believe" and similar expressions) are not

statements of historical fact and may be "forward-looking statements".

Actual results may vary from forward-looking statements. Forward-looking statements are subject to

known and unknown risks, uncertainties and other factors that may cause actual results to materially

differ from those expressed or implied by such forward-looking statements, including but not limited to:

satisfaction or waiver of all applicable closing conditions for the Transaction on a timely basis or at all

including, without limitation, receipt of all necessary shareholder, stock exchange and regulatory

approvals or consents and lack of material changes with respect to First Majestic and Gatos and their

respective businesses, all as more particularly set forth in the Definitive Agreement and the timing of the

closing of the Transaction and the failure of the Transaction to close for any reason; the outcome of any

legal proceedings that may be instituted against First Majestic or Gatos and others related to the

Transaction; unanticipated difficulties or expenditures relating to the Transaction; risks relating to the

value of the consideration to be issued in connection with the Transaction; the diversion of management

time on pending Transaction-related issues; the synergies expected from the Transaction not being

realized; business integration risks; fluctuations in security markets; the duration and effects of the

COVID-19, and any other pandemics on operations and workforce, and the effects on global economies

and society; general economic conditions including inflation risks; actual results of exploration activities;

conclusions of economic evaluations; changes in project parameters as plans continue to be refined;

commodity prices; variations in ore reserves, grade or recovery rates; availability of sufficient water for

operating purposes; actual performance of plant, equipment or processes relative to specifications and

expectations; accidents; labour relations; relations with local communities; changes in national or local

governments; changes in applicable legislation or application thereof; delays in obtaining approvals or

financing or in the completion of development or construction activities; exchange rate fluctuations;

requirements for additional capital; government regulation; environmental risks; reclamation expenses;

risks related to international operations; risks related to joint venture operations; outcomes of pending

litigation; changes in taxation, controls and political or economic developments; operating or technical

difficulties in connection with mining or development activities; risks and hazards associated with the

business of mineral exploration, development and mining (including environmental hazards, industrial

accidents, unusual or unexpected formations, pressures, cave-ins and flooding); risks relating to the

credit worthiness or financial condition of suppliers, refiners and other parties with whom First Majestic

or Gatos does business; limitations on insurance coverage; inability to obtain adequate insurance to

cover risks and hazards; and the presence of laws and regulations that may impose restrictions on

mining, including those currently enacted or pending in Mexico, whether or not currently in force;

employee relations; relationships with and claims by local communities and indigenous populations;

availability and increasing costs associated with mining inputs and labour; the speculative nature of

mineral exploration and development, including the risks of obtaining or maintaining necessary licenses,

permits and approvals from government authorities; diminishing quantities or grades of mineral reserves

as properties are mined; First Majestic's and Gatos' title to properties, changes in climate conditions

and extreme weather events, as well as those factors discussed in (a) the section entitled "

Description

of the Business - Risk Factors

" in First Majestic's most recently filed AIF, available under its profile on

SEDAR+ at

www.sedarplus.ca

, and as an exhibit to its most recently filed Form 40-F available on

EDGAR at

www.sec.gov/edgar

or on First Majestic's website and (b) the Gatos' Annual Report on Form

10-K for the year ended December 31, 2023, available on EDGAR at

www.sec.gov/edgar

or on Gatos's

website. First Majestic is not affirming or adopting any statements or reports attributed to Gatos

(including prior mineral reserve and resource declaration) in this news release or made by Gatos outside

of this news release. Gatos is not affirming or adopting any statements or reports attributed to First

Majestic (including prior mineral reserve and resource declaration) in this news release or made by First

Majestic outside of this news release. In addition, the failure of a party to comply with the terms of the

Definitive Agreement may result in that party being required to pay a fee to the other party, the result of

which could have a material adverse effect on the paying party's financial position and results of

operations and its ability to fund growth prospects and current operations. Although First Majestic and

Gatos have attempted to identify important factors that could cause actual results to differ materially from

those contained in forward-looking statements, there may be other factors that cause results not to be as

anticipated, estimated or intended.

First Majestic and Gatos believe that the expectations reflected in these forward-looking statements are

reasonable, but no assurance can be given that these expectations will prove to be correct and such

forward-looking statements included herein should not be unduly relied upon. These statements speak

only as of the date hereof. First Majestic and Gatos do not intend, and do not assume any obligation, to

update these forward-looking statements or forward-looking information, except as required by

applicable laws.

1

Based on First Majestic and Gatos 2024 production guidance, adjusted for First Majestic metal price assumptions and shown on an attributable

basis

2

Based on analyst consensus estimates for 2024

3

Based on each company's average daily value traded over the last twelve months

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/222226