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* denotes a Personal Law Corporation

TUPPER JONSSON & YEADON

BARRISTERS & SOLICITORS

An Association of Lawyers and law corporations

CARL R. JONSSON* LEE S. TUPPER* 1710 - 1177 West hastings street

GLENN R. YEADON* Vancouver, b.c., canada

JEFFREY T. K. FRASER* V6E 2L3

Tel: (604) 683-9262 Local 118

Direct Line: (604) 640-6355

Fax: (604) 681-0139

Email yeadon@securitieslaw.bc.ca

REPLY ATTENTION OF: GLENN R. YEADON

OUR FILE: 46510

September 8, 2025 BY EMAIL

Canada Stockwatch

Vancouver, B.C.

By Email: to news@stockwatch.com

Market News Publishing, Inc.

Vancouver, B.C.

By Email: to news@baystreet.com

Dear Sirs:

RE: BONANZA MINING CORPORATION

We are the solicitors for the above-mentioned company, and are enclosing a copy of its News Release of even date, which we would ask that you disseminate pursuant to the TSX Venture Exchange's requirements, as well as for distribution in the normal fashion. (Please note that we will be handling the SEDAR+ filing of this News Release.)

Yours very truly,

TUPPER JONSSON & YEADON

"Glenn R. Yeadon"

Glenn R. Yeadon

GRY/ss

Enclosure

c: Bonanza Mining Corporation - via email to daytonmarks@hotmail.com

Attention: Dayton Marks

Chris Graf (by email) to cgraf@spectrummining.com

Drew Burgess (by email) to asburg100@gmail.com

TSX Venture Exchange - via SEDAR+

British Columbia Securities Commission - via SEDAR+

Alberta Securities Commission - via SEDAR+

File: '\\swfile\EmailIn\20250908 153324 Attachment bonanza nr r1 sept 8 2025v4.docx'

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Bonanza Mining Corporation

Suite 1710 - 1177 West Hastings Street

Vancouver, B.C.

V6E 2L3

Trading Symbol: TSX-V: BNZ Telephone: 604-619-0225 Email: asburg100@gmail.com Website: www.bonanzamining.com

Bonanza Mining Corporation Announces Corporate Changes

September 8, 2025 - Vancouver, British Columbia: Bonanza Mining Corporation ("Bonanza" or the "Company") (TSX-V: BNZ) announces the following corporate developments.

Mr. Alfredo De Lucrezia and Mr. John Pallot have been appointed to the board of Bonanza. Additionally, Mr. De Lucrezia has been appointed President of Bonanza.

Mr. De Lucrezia is an experienced businessman who has founded a number of publicly listed companies. From 2013 - 2016, Mr. De Lucrezia was CEO, CFO, President and Director of Manera Capital Corp. (now GT Gold Corp., which was acquired by Newmont Corp.). He also founded Califfi Capital Corp., as well as Vincero Capital Corp, also serving as the CEO of both companies. Mr. De Lucrezia is a director of Rakovina Therapeutics Inc., a company engaged in biopharmaceutical research company focused on the development of innovative cancer treatments and he is the President, CEO and a Director of AD4 Capital Corp., which it expects to soon complete its qualifying transaction with a company in the clean tech space. Mr. De Lucrezia has been a director and/or officer of reporting issuers over the past 25 years, culminating in a wealth of experience in board management, company growth, and strategy. Currently, Mr. De Lucrezia manages a multi-million dollar real estate and business portfolio of private companies.

Mr. Pallot has been a self-employed consultant in the mining industry since 2002. Mr. Pallot studied at Simon Fraser University prior to serving with Telus Corp. for thirty years. He has more than twenty years of involvement with public companies as a director and/or in senior executive capacities with such companies as Statesman Resources Ltd., Messina Minerals Inc., Windarra Minerals Ltd., and Red Mile Minerals Corp. (now Orla Mining Ltd.). He presently serves as an independent director of Klondike Gold Corp. He was a director of Califfi Capital Corp. (now Bonanza Mining Corporation) from February 2017 to August 2024. He was a director of Vincero Capital Corp. (now Rakovina Therapeutics Inc.) from May 2019 to March 2021. He was a director of Manera Capital Corp. (now GT Gold Corp.) from January 2014 to May 2021.

Mr. Raymond Marks has resigned as a director of Bonanza and the Company thanks Mr. Marks for his service as a director.

Mr. Dayton Marks has resigned as President and CEO of Bonanza, although he remains a director.

Mr. Andrew Burgess, currently a director of Bonanza, has been appointed CEO.

In the near term Bonanza will be focused on conducting a drill program on its MC property located adjacent to Ascot Resources Ltd.'s Premier Gold Project. A 2020 43-101 report on the MC property recommended a phase one drill program consisting of coring 1,000 meters in several holes to test the IP chargeability anomalies and gold, silver-bearing quartz-carbonate veins within the multi-element soil anomaly. Depending on positive results from the phase one drill program a phase two 2,000 meters follow-up drill program was also recommended. A five-year drilling permit has been issued to Bonanza and a drilling program will be designed to test the large IP chargeability anomaly on the northern part of the MC property that was outlined by Bonanza's 2017 IP survey. This IP anomaly is associated with the historical Dalhousie copper, gold, magnetite mineral showings that were blast trenched and sampled by a previous company in 1979 (A.R # 7841). Three of their chip samples respectively returned 0.44 oz/t gold, 0.2 oz/t silver and 0.3% copper over six meters, 0.12 oz/t gold, 0.2 oz/t silver and 1.0% copper over three meters and 0.24 oz/t gold, 0.5 oz/t silver and 1.9% copper over three meters. The drilling will also test the system of poly-metallic quartz/carbonate veins on the southern part of the property that were located and sampled in 2017 and 2019. The main mineralized vein structure has a strike length of over 1 km and lies within an associated multi-element, > 1 km long by 150 m - 200 m wide, soil anomaly coincidently enriched in gold (>50 ppb), silver (>3 ppm), lead (>300 ppm), zinc (>300 ppm), copper (>50 ppm) and arsenic (>20 ppm).

For further information, please contact:

Bonanza Mining Corporation

Suite 1710 - 1177 West Hastings Street

Vancouver, B.C. V6E 2L3

Attention: Alfredo De Lucrezia, President, and Director

Tel: 604-619-0225

Email: delucrezia@shaw.ca

or

Drew Burgess, CEO and Director

Tel: 403-383-8254

Email: asburg100@gmail.com

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 news release.