File: '\\swfile\EmailIn\20250718 092414 Attachment Giant - News Release Announcing Filing of Prospectus Supplement.docx'

2

LEGAL_47147551.2

Press Release July 18, 2025

Giant Mining Announces Automatic Conversion of Special

Warrants. Prospectus Supplement Available on SEDAR+

VANCOUVER, BC - July 18, 2025 - Giant Mining Corp. (CSE: BFG | OTC: BFGFF | FWB: YW5) ("Giant Mining" or the "Company") is pleased to announce that it has filed a prospectus supplement dated July 17, 2025 (the "Prospectus Supplement") to its short form base shelf prospectus dated May 29, 2025 (the "Shelf Prospectus") to qualify the distribution of securities underlying 15,187,293 special warrants (the "Special Warrants") issued by the Company on June 27, 2025 (the "Offering").

The Prospectus Supplement qualifies the distribution of 15,187,293 common shares (each a "Common Share") and 15,187,293 common share purchase warrants (each a "Warrant") comprising the units of the Company issuable on the exercise or deemed exercise of the Special Warrants in the Provinces of British Columbia, Alberta, and Ontario. Each Warrant entitles the holder thereof to acquire one Common Share at an exercise price of $0.32 until 4:00 p.m. (Pacific Time) on the date that is four years following the closing date of the Offering. The Warrants are subject to an accelerated expiry (the "Acceleration Right") if the trading price of the Common Shares on the Canadian Securities Exchange (the "CSE"), or such other market as the Common Shares may trade from time to time, is or exceeds $0.80 for any five (5) consecutive trading days, in which event the Warrant holder may, at the Company's election, be given notice by way of a news release that the Warrants will expire 30 days following the date of such notice. The Warrants may be exercised by the Warrant holder during the 30-day period between the notice and the expiration of the Warrants.

The Special Warrants will be deemed to be converted into Common Shares and Warrants on July 22, 2025. No action is required on the part of any holder of Special Warrants to convert their Special Warrants into underlying securities.

The qualification rights of holders of Special Warrants are further described in the Prospectus Supplement and the Shelf Prospectus, which can be found under the Company's profile on SEDAR+ at www.sedarplus.ca.

Access to the Shelf Prospectus and the Prospectus Supplement, and any amendment to the documents, is provided in accordance with securities legislation relating to procedures for providing access to a shelf prospectus supplement, a base shelf prospectus and any amendment. The Shelf Prospectus and the Prospectus Supplement are accessible on SEDAR+ at www.sedarplus.ca. An electronic or paper copy of the Prospectus Supplement, the corresponding Shelf Prospectus and any amendment to the documents may be obtained, without charge, from the Company at 1500, 1055 West Georgia Street, Vancouver, British Columbia V6E 4N7, or by email at info@giantminingcorp.com and by providing the contact with an email address or address, as applicable.

The Company also clarifies that further to its news release of June 27, 2025 announcing the closing of its Special Warrant Financing, that 320,000 finders warrants issued thereunder (each a "Finders Warrant") have an exercise price of $0.21 and the remaining 190,400 Finders Warrants have an exercise price of $0.32.

The securities being referred to in this news release have not been, nor will they be, registered under the United States Securities Act of 1933, as amended, and may not be offered or sold in the U.S. or to, or for the account or benefit of, U.S. persons absent registration or an applicable exemption from the registration requirements. This news release does not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful.

Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.

On Behalf of the Board of Giant Mining Corp.

"David Greenway"

David C. Greenway President & CEO

For further information, please contact:

E: info@giantminingcorp.com P: 1 (604)-499-6791

VISIT OUR WEBSITE FOR MORE DETAILS

www.giantminingcorp.com

LIKE AND FOLLOW

Instagram, Facebook, Twitter, LinkedIn

DOWNLOAD INVESTOR INFORMATION

Click Here

Forward-Looking Statements

This news release contains forward-looking information, which involves known and unknown risks, uncertainties and other factors that may cause actual events to differ materially from current expectation. Important factors - including statements related to the Company's strategy, projects or plans that could cause actual results to differ materially from the Company's expectations as disclosed in the Company's documents filed from time to time on SEDAR+ (see www.sedarplus.ca). Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. The Company disclaims any intention or obligation, except to the extent required by law, to update or revise any forward looking statements, whether as a result of new information, future events or otherwise.