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Aris Mining Files WKSI Base Shelf Prospectus Replacing existing base shelf prospectus filed in 2024

Financings

Aris Mining Files WKSI Base Shelf Prospectus

Replacing existing base shelf prospectus filed in 2024

VANCOUVER, British Columbia--(BUSINESS WIRE)--July 30, 2026--Aris Mining

Corporation (Aris Mining or the Company) (TSX: ARIS; NYSE: ARIS) announces that it has

filed a well-known seasoned issuer (WKSI) base shelf prospectus in Canada and a related

registration statement on Form F-10 with the U.S. Securities and Exchange Commission,

replacing its existing base shelf prospectus filed in 2024.

The filings maintain the Company’s financing flexibility. Aris Mining has no current plans to

issue securities under the base shelf prospectus. Neither Aris Mining nor its subsidiaries have

completed an equity financing since February 2021, when Aris Gold Corporation, now a

subsidiary of Aris Mining, completed its last equity financing.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any

securities.

About Aris Mining

Aris Mining is a Canadian gold mining company focused on South America. The Company

operates the Segovia and Marmato underground gold mines in Colombia, which together

produced approximately 257,000 ounces of gold in 2025. Aris Mining is listed on the Toronto

Stock Exchange and the New York Stock Exchange under the symbol ARIS.

The Company is advancing expansion projects at Segovia and Marmato that are expected to

increase annual gold production to approximately 500,000 ounces1, driven by the ramp-up at

Segovia following the installation of the second mill which was completed in June 2025, and

construction of the new Marmato bulk mine and CIP plant, with first gold expected in Q4 2026.

Aris Mining’s portfolio supports a longer-term objective of approximately 1 million ounces of

annual gold production2. Key projects include the high-grade Soto Norte gold project in

Colombia and the Toroparu gold project in Guyana, where a Prefeasibility Study is in progress

and a construction decision is expected in early 2027.

Additional information on Aris Mining can be found at www.aris-mining.com,

www.sedarplus.ca, and on www.sec.gov.

Qualified Person and Technical Information

Pamela De Mark, P.Geo., Senior Vice President Geology and Exploration of Aris Mining, is a

Qualified Person as defined by National Instrument 43-101 (NI 43-101), and has reviewed and

approved the technical information contained in this news release.

Forward-Looking Information

This news release contains "forward-looking information" or “forward-looking statements"

within the meaning of Canadian securities legislation. All statements included herein, other than

statements of historical fact, including, without limitation, statements relating to the Company’s

equity financing plans, the Company’s ability to deliver on its 2026 objectives, updates and

timing for completion, first gold pour and ramp-up at the Marmato CIP plant, the Company’s

longer-term growth outlook, the timeline for a Prefeasibility Study and construction decision for

the Toroparu Project, the objective of reaching 1 million ounces of gold production, are forward-

looking. Generally, the forward-looking information and forward looking statements can be

identified by the use of forward looking terminology such as "plans", "expects" or "does not

expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or

"does not anticipate", "will continue" or "believes", or variations of such words and phrases or

state that certain actions, events or results "may", "could", "would", "might" or "will be taken",

"occur" or "be achieved”. The material factors or assumptions used to develop forward looking

information or statements are disclosed throughout this news release.

Forward looking information and forward looking statements, while based on management's best

estimates and assumptions, are subject to known and unknown risks, uncertainties and other

factors that may cause the actual results, level of activity, performance or achievements of Aris

Mining to be materially different from those expressed or implied by such forward-looking

information or forward looking statements, including but not limited to those factors discussed in

the section entitled "Risk Factors" in Aris Mining's annual information form dated March 11,

2026 which is available on SEDAR+ at www.sedarplus.ca and included as part of the

Company’s Annual report on Form 40-F, filed with the SEC at www.sec.gov.

Although Aris Mining has attempted to identify important factors that could cause actual results

to differ materially from those contained in forward-looking information and forward-looking

statements, there may be other factors that cause results not to be as anticipated, estimated or

intended. There can be no assurance that such information or statements will prove to be

accurate, as actual results and future events could differ materially from those anticipated in such

information or statements. The Company discloses in its Management's Discussion and Analysis

and other publicly filed documents, changes to material factors or assumptions underlying the

forward-looking information and forward-looking statements and to the validity of the

information, in the period the changes occur. The forward-looking statements and forward-

looking information are made as of the date hereof and Aris Mining disclaims any obligation to

update any such factors or to publicly announce the result of any revisions to any of the forward-

looking statements or forward-looking information contained herein to reflect future results.

Accordingly, readers should not place undue reliance on forward-looking statements and

information.

_____________________________

1 Reflects expected steady-state annual gold production of approximately 300 thousand ounces (koz) at Segovia and

200 koz at Marmato following completion and ramp-up of the respective expansion projects. For more information,

please refer to the Company’s news releases dated June 30, 2025 regarding the Segovia expansion and March 12,

2025 regarding the Marmato expansion.

2 Includes potential production estimates from Toroparu, which is based on a preliminary economic assessment

effective October 21, 2025, which contemplates a 7.0 Mtpa operation over a 21.3-year mine life with average annual

gold production of approximately 235 koz at a base case gold price of US$3,000/oz. The preliminary economic

assessment is preliminary in nature and includes inferred mineral resources that are considered too speculative

geologically to have the economic considerations applied to them that would enable them to be categorized as

mineral reserves, and there is no certainty that the preliminary economic assessment will be realized. Mineral

resources that are not mineral reserves do not have demonstrated economic viability. There can be no assurance that

the projected production will be achieved. Such production also remains subject to obtaining all necessary permits

and to formal construction decisions by the Company, in each case for both Soto Norte and Toroparu.

Contacts

Aris Mining Contact

Oliver Dachsel

Senior Vice President, Capital Markets

+1.917.847.0063

Lillian Chow

Director, Investor Relations & Communications

[email protected]