Mexican GOLD Acquires Tatatila Project in Mexico

MEXICAN GOLD ACQUIRES TATATILA PROJECT IN MEXICO

VANCOUVER, BC, November 12 , 2025 – Mexican Gold Mining Corp. (the “Company” or

“Mexican Gold”) (TSXV: MEX, OTCQB: MEXGF) is pleased to announce that, pursuant to a

mining concessions a ssignment agreement (the “ Assignment Agreement ”) between the

Company and its subsidiary, Roca Verde Exploración de México, S.A. de C.V. (“Roca Verde”),

with Chesapeake Gold Corp. (“ Chesapeake”) and its subsidiaries Minerales El Prado, S.A. de

C.V. (“MEP”) and Chesapeake México, S.A. de C.V. (“ Chesapeake Mexico”) disclosed in the

Company’s news release of October 1, 2025, Mexican Gold has acquired 100% of the title and

interest (the “Interest”) in and to certain mineral titles, and the rights derived therefrom, covering

an aggregate of 3,824.3585 hectares known as the T atatila Project in Veracruz State, Mexico

(see Figure 1).

Figure 1: Tatatila Mining Concessions (shaded in blue)

The Tatatila concessions surround or are adjacent to Mexican Gold’s Las Minas Project.

As consideration for the Tatatila Project, the Company has issued to Chesapeake an aggregate

of 4,451,361 common shares of the Company (the “ Consideration Shares”), each issued at a

deemed value of $0.05 for an aggregate deemed value of $222,568. These Consideration Shares

represent 14.99% of the total issued and outstanding common shares of the Company. As further

consideration for the Interest, the Company has granted to Chesapeake Mexico a net smelt er

returns royalty (“Royalty”) in an amount equivalent to 1.5%. The Company shall have a buy-back

option on the Royalty that provides Roca Verde with the right to purchase 0.5% of the Royalty

from Chesapeake Mexico for US$500,000 during the 10 years following the date of execution of

the Assignment Agreement, which would reduce the Royalty to 1%.

All Consideration Shares are subject to a statutory hold period expiring March 13, 2026, being

the date that is four months and one day from the date of issuance in accordance with applicable

Canadian securities legislation. In addition, the Consideration Shares are subject to further lock

up restrictions (the “Lock Up”) such that 25% of the C onsideration Shares will be release d on

November 12, 2026, being the date that is the one (1) year from the date of issuance. Every six

(6) months thereafter, a further 25% of the Consideration Shares will be released from the Lock

Up such that all Consideration Shares will be released from Lock Up over a period of two and a

half (2.5) years from the date of issuance.

The transaction remains subject to the receipt of final acceptance of the TSX Venture Exchange.

About Mexican Gold Mining Corp.

Mexican Gold is a Canadian-based mineral exploration and development company committed to

building long-term value through ongoing discoveries and strategic acquisitions of prospective

precious metals and copper projects in the Americas. Mexican Gold is exploring and advancing

the Las Minas Project, which is located in the core of the Las Minas mining district in Veracruz

State, Mexico, and host to one of the newest, under-explored skarn systems known in Mexico.

For more information, please contact:

Jack Campbell – CEO, President, and Director

E-mail: [email protected]

Website: www.mexicangold.ca

Neither the 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 release.

Cautionary Statements Regarding Forward-Looking Information

This news release contains certain "forward -looking information" and "forward -looking

statements" (collectively "forward -looking statements") within the meaning of applicable

securities legislation. All statements, other than statements of historical fact, included herein,

without limitation, statements relating to future operating or financial performance of the

Company, are forward -looking statements. Forward-looking statements are frequently, but not

always, identified by words such as "expects", "anticipates", "believes", "intends", "estimates",

"potential", "possible", and similar expressions, or statements that events, conditions, or results

"will", "may", "could", or "should" occur or be achieved. Forward-looking statements in this news

release relate to, among other things, the staged releases of the Consideration Shares from Lock

Up and the receipt of final acceptance of the TSX Venture Exchange. 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 the Company, 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, the ability of the Company to obtain final acceptance of

the TSX Venture Exchange. Readers should not place undue reliance on the forward -looking

statements and information contained in this news release concerning these items. The Company

does not assume any obligation to update the forward -looking statements should beliefs,

opinions, projections, or other factors change, except as required by applicable securities laws.