Appointment of Buddy Doyle to Advisory Board and Stock Option Grant

(TheNewswire)

Vancouver, British Columbia – TheNewswire -December 17, 2025 – Lexston Mining Corporation (“Lexston” or“the Company”) (CSE: LEXT) (OTCQB: LEXTF) (Deutsche BörseFrankfurt: L75) is pleased to announce the appointment of Buddy Doyleto its newly established Advisory Board. Mr. Doyle brings with him 40years of experience in mineral exploration. His career includes over23 years at Rio Tinto PLC, where he most recently served asExploration Vice President of Kennecott Canada Exploration Inc.,overseeing diamond exploration activities across North America.

Mr. Doyle played a significant role in the Kennecott ExplorationAustralia team responsible for the discovery of the multi-millionounce Minifie gold deposits at Lihir during 1987-1988. He also led theteam that discovered the Diavik diamond deposits in 1994-1995.Notably, few geologists have witnessed two projects progress fromdiscovery all the way through to a decision to mine. Mr. Doyle isrecognized within the mineral exploration industry as an expert indiamond exploration and kimberlite geology, and he has authored orco-authored numerous papers on these subjects. In 2007, he receivedthe Hugo Dummitt Award for excellence in diamond exploration.

Since departing from Rio Tinto, Mr. Doyle has continuedhis involvement in the diamond sector through consulting anddirectorships. As CEO of Amarillo Gold from 2004 to 2017, he oversaw anear-production gold project in Brazil. He was also a founder anddirector of Western Potash from 2007 to 2017, contributing to thediscovery and development of the now-operational Milestone PotashProject in Saskatchewan. Additionally, Mr. Doyle is a Fellow ofAusIMM, a professional association.

Jag Bal, CEO of Lexston Mining Corporation, commented“the company has created an Advisory Board for talented andaccomplished individuals in the mining industry. We are very pleasedto have Buddy Doyle be our first member of the board. He is veryaccomplished in exploration and we look forward to his input in ourexploration portfolio.”

Stock Option Grant

The Company announces that it has granted incentivestock options to certain directors, officers, and consultants topurchase up to an aggregate of 400,000 common shares in the Companypursuant to the Company’s share option plan. The options areexercisable for a period of five years at a price of $0.115 per share.The options, and any underlying common shares issued on exercisethereof, will have a hold period expiring April 15, 2026, inaccordance with the policies of the Canadian Securities Exchange andapplicable securities laws.

About Lexston MiningCorporation

Lexston Mining Corporation is a Canadian mineral exploration companyfocused on acquiring and developing mineral projects with the aim ofenhancing value for all stakeholders. The Company currently hasmineral exploration projects located in British Columbia and Nevada.

Lexston (OTCQB: LEXTF) trades on the OTCQB Venture Market, whichserves early-stage and developing U.S. and international companies.Companies on this market are current in their reporting and undergoannual verification and management certification processes. Investorscan access real-time quotes and market information for Lexston at www.otcmarkets.com.

On behalf of the Board ofDirectors

LEXSTON MINING CORPORATION

Jagdip Bal

Chief Executive Officer

Telephone: (604) 928-8913

Email: info@lexston.ca

The Canadian Securities Exchange hasnot reviewed and does not accept responsibility for the adequacy oraccuracy of the content of this news release.

Forward-lookingstatements

This news release contains"forward-looking information" under applicable Canadiansecurities legislation. Such forward-looking information reflectsmanagement's current beliefs and are based on a number ofestimates and/or assumptions made by and information currentlyavailable to the Company that, while considered reasonable, aresubject to known and unknown risks, uncertainties, and other factorsthat may cause the actual results and future events to differmaterially from those expressed or implied by such forward-lookinginformation. Readers are cautioned that such forward-lookinginformation are neither promises nor guarantees and are subject toknown and unknown risks and uncertainties including, but not limitedto, general business, economic, competitive, political and socialuncertainties, uncertain and volatile equity and capital markets, lackof available capital, actual results of exploration activities,environmental risks, future prices of base and other metals, operatingrisks, accidents, labour issues, objections by aboriginal people,delays in obtaining governmental approvals and permits, obtainingconsents of aboriginal people and other risks in the miningindustry.

These forward-looking statementsinclude but are not limited to the Advisory Board, timing of theexploration program, goals of the exploration program, obtainingfinancing, obtaining exploration permits, exploration of propertiesfor minerals, liquidity of the common shares of the Company and futurefinancings of the Company. These statements reflect management'scurrent estimates, beliefs, intentions, and expectations. They are notguarantees of future performance. The Company cautions that allforward-looking statements are inherently uncertain and that actualperformance may be affected by many material factors, many of whichare beyond the Company’s control.  Such factors include, amongother things: risks and uncertainties relating to the acquisition ofnew properties, liquidity of the common shares of the Company,financings, the market valuing the Company in a manner not anticipatedby management of the Company.  Accordingly, actual and future events,conditions and results may differ materially from the estimates,beliefs, intentions and expectations expressed or implied in theforward-looking information. Except as required under applicablesecurities legislation, the Company does not undertake to publiclyupdate or revise forward-looking information.

The Company is presently anexploration stage company. Exploration is highly speculative innature, involves many risks, requires substantial expenditures, andmay not result in the discovery of mineral deposits that can be minedprofitably. Furthermore, the Company currently has no reserves on itsproperties.  Investment in the securities of the Company is risky. As a result, there can be no assurance that such forward-lookingstatements will prove to be accurate, and actual results and futureevents could differ materially from those anticipated in suchstatements.

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