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Meridian Mining Announces Cabacal's Preliminary Licence Approval by Mato Grosso's CONSEMA Council Meeting

Corporate Updates

Meridian Mining Announces Cabacal's

Preliminary Licence Approval by Mato

Grosso's CONSEMA Council Meeting

HIGHLIGHTS:

Meridian Mining’s Cabaçal Au-Cu-Ag Project’s Preliminary Licence (“PL”) approved by

CONSEMA Council Meeting:

Mato Grosso’s CONSEMA Council Meeting unanimously approves Cabaçal’s PL

Long term socio-economic benefits of Mato Grosso and Brazil’s next mine, moves closer to

being shovel-ready with PL’s approval by CONSEMA.

Cabaçal’s technical merits, environmental feasibility and social acceptance affirmed.

PL moves to formal issuance via the State of Mato Grosso’s official gazette.

Meridian Mining completes another strategic step forward towards building its first mine

at Cabaçal:

Cabaçal’s Definitive Feasibility Study advances towards publication in 2026; and

Cabaçal’s Installation License application is advancing towards submission.

London, United Kingdom--(Newsfile Corp. - October 30, 2025) - Meridian Mining UK S (TSX: MNO)

(FSE: N2E) (OTCQX: MRRDF) ("Meridian" or the "Company") is pleased to announce that CONSEMA,

the Environmental Council for the State of Mato Grosso, met in Cuiaba on October 29, 2025, and

unanimously approved the Cabaçal Au-Cu-Ag project's ("Cabaçal") Preliminary Licence ("PL").

CONSEMA's decision, after reviewing SEMA's (Mato Grosso State Environmental Secretariat) positive

technical opinion, which was based on the Environmental Impact Assessment ("EIA") & Relatório de

Impacto Ambiental ("RIMA") of Cabaçal.

The formal issuance of the Preliminary Licence is now in process with SEMA, who publish the formal

approval in the State of Mato Grosso gazette:

www.iomat.mt.gov.br

. Meridian is not aware of any risks

associated to the formal gazetting of the PL.

Previously the team of Meridian's local subsidiary, Rio Cabaçal Mineração Ltda, along with the

representatives of SETE, GE21 and Ausenco had presented to CONSEMA. Together, they

communicated Cabaçal's technical aspects, environmental and social impacts, and demonstrate the

long-term socio-economic benefits of the proposed mine to a positive and supportive response. The

CONSEMA council, supported by the positive technical opinion of SEMA, unanimously voted in favour of

the issuance of the PL.

The Preliminary License (PL) is the first and most significant of the three permitting stages needed for

the development of Cabaçal. The next step is the Installation License granting. This would allow for the

commencement of Cabaçal's beneficiation plant & structures construction activities and is the trigger for

a Final Investment Decision. Lastly, the Operating License is granted after the mine's construction is

completed.

Qualified Person Statement

Mr. Erich Marques, B.Sc., FAIG, Chief Geologist of Meridian Mining and a Qualified Person as defined

by National Instrument 43-101, has reviewed, verified and approved the technical information in this

news release.

About Meridian

Meridian Mining is focused on:

The development and exploration of the advanced stage Cabaçal VMS gold-copper project;

The initial resource definition at the second higher-grade VMS asset at Santa Helena as the first

stage of the Cabaçal Hub development strategy;

Regional scale exploration of the Cabaçal VMS belt to expand the Cabaçal Hub strategy; and

Exploration in the Jaurú & Araputanga Greenstone belts (the above all located in the State of Mato

Grosso, Brazil).

The Pre-feasibility Study technical report (the "PFS Technical Report") dated March 31, 2025, entitled:

"Cabaçal Gold-Copper Project NI 43-101 Technical Report and Pre-feasibility Study" outlines a base

case after-tax NPV5 of USD 984 million and 61.2% IRR from a pre-production capital cost of USD 248

million, leading to capital repayment in 17 months (assuming metals price scenario of USD 2,119 per

ounces of gold, USD 4.16 per pound of copper, and USD 26.89 per ounce of silver). Cabaçal has a low

All-in-Sustaining-Cost of USD 742 per ounce gold equivalent & production profile of 141,000-ounce gold

equivalent life of mine, driven by high metallurgical recovery, a low life-of-mine strip ratio of 2.3:1, and the

low operating cost environment of Brazil.

The Cabaçal Mineral Reserve estimate consists of Proven and Probable reserves of 41.7 million tonnes

at 0.63g/t gold, 0.44% copper and 1.64g/t silver (at a 0.25 g/t gold equivalent cut-off grade).

Readers are encouraged to read the PFS Technical Report in its entirety. The PFS Technical Report

may be found under the Company's profile on SEDAR+ at

www.sedarplus.ca

and on the Company's

website at

www.meridianmining.co

.

The PFS Technical Report was prepared for the Company by Tommaso Roberto Raponi (P. Eng),

Principal Metallurgist with Ausenco Engineering Canada ULC; Scott Elfen (P. E.), Global Lead

Geotechnical and Civil Services with Ausenco Engineering Canada ULC; John Anthony McCartney,

C.Geol., Ausenco Chile Ltda.; Porfirio Cabaleiro Rodriguez (Engineer Geologist FAIG), of GE21

Consultoria Mineral; Leonardo Soares (PGeo, MAIG), Senior Geological Consultant of GE21

Consultoria Mineral; Norman Lotter (Mineral Processing Engineer; P.Eng.), of Flowsheets Metallurgical

Consulting Inc.; and, Juliano Felix de Lima (Engineer Geologist MAIG), of GE21 Consultoria Mineral.

On behalf of the Board of Directors of Meridian Mining UK S

Mr. Gilbert Clark - CEO and Director

Meridian Mining UK S

8th Floor, 4 More London Riverside

London SE1 2AU

United Kingdom

Email:

[email protected]

Ph: +44 (0) 203 930 3145 (GMT)

Media Enquiries:

Gareth Tredway / Ruairi Millar

Tel: +44 (0) 207 920 3150

Email:

[email protected]

Stay up to date by subscribing for news alerts here:

https://meridianmining.co/contact/

Follow Meridian on X:

https://X.com/MeridianMining

Further information can be found at:

www.meridianmining.co

Cautionary Statement on Forward-Looking Information

Some statements in this news release contain forward-looking information or forward-looking statements

for the purposes of applicable securities laws. These statements address future events and conditions

and so involve inherent risks and uncertainties, as disclosed under the heading "Risk Factors" in

Meridian's most recent Annual Information Form filed on

www.sedarplus.ca

. While these factors and

assumptions are considered reasonable by Meridian, in light of management's experience and

perception of current conditions and expected developments, Meridian can give no assurance that such

expectations will prove to be correct. Any forward-looking statement speaks only as of the date on which

it is made and, except as may be required by applicable securities laws, Meridian disclaims any intent

or obligation to update any forward-looking statement, whether as a result of new information, future

events, or results or otherwise.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/272493