Aris Mining Announces Breakthrough Milestone at Marmato Underground Development
Aris Mining Announces Breakthrough Milestone at Marmato Underground
Development
VANCOUVER, British Columbia--(BUSINESS WIRE)--April 17, 2026--Aris Mining
Corporation (Aris Mining or the Company) (TSX: ARIS; NYSE: ARIS) announces a significant
construction milestone at its Marmato gold mine with the underground development cross-cut
now connecting the new surface decline to the existing underground development.
This breakthrough marks an important step in the Marmato expansion project, establishing
continuous underground access from surface, where the new 5,000 tonne per day CIP plant is
under construction, to the existing workings. The connection supports the next phases of mine
development, infrastructure installation and operational readiness for the Marmato bulk mine
which is on schedule for first gold in Q4 2026.
Neil Woodyer, Chair and CEO, commented: “The on-schedule connection of the new surface
decline to the existing underground development is a major milestone for Marmato and an
important step in delivering our expansion plans. As development continues to advance,
Marmato, together with Segovia, remains on track to deliver approximately 500,000 ounces of
gold production per year following expansion and ramp-up.”
Marmato is one of Aris Mining’s key growth projects and is expected to become a larger-scale,
modern underground mining operation. This cross-cut breakthrough reflects continued progress
in developing the access and infrastructure required to support expanded operations.
Aris Mining will continue to provide updates on construction and development progress at
Marmato as additional milestones are achieved.
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 ounces, 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 production1. Key projects include the high-grade Soto Norte gold project in
Colombia, where environmental studies are being finalized for submission in Q2 2026 to initiate
the licensing process, 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.
Cautionary Language
Qualified Person
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 timing for
completion and first gold pour at the Marmato Bulk Mining Zone, the expected benefit from the
Segovia expansion, the timeline for environmental studies for the Soto Norte Project, the
timeline for a Prefeasibility Study and construction decision for the Toroparu Project, the
objective of reaching one 1 million ounces of production and potential 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 has and continues to disclose 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 Includes potential production estimates from Toroparu, which is based on a preliminary
economic assessment and is preliminary in nature. It 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 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