Wednesday, September 16, 2026
MiningNewsTerminal
Wednesday, September 16, 2026 Admin

MSA.TO ·

BVC: MINEROS TSX :MSA OTCQX: MNSAF MINEROS.COM.CO Mineros S.A. to Acquire a Gold Exploration Project in Tolima, Colombia (all dollar amounts are expressed in U.S. dollars)

Mergers & Acquisitions

BVC: MINEROS TSX :MSA OTCQX: MNSAF MINEROS.COM.CO

Mineros S.A. to Acquire a Gold Exploration Project in Tolima, Colombia

(all dollar amounts are expressed in U.S. dollars)

Medellin, Colombia – March 9, 2026 – Mineros S.A. (TSX:MSA, OTCQX:MNSAF, BVC:MINEROS) (“Mineros”

or the “ Company”) has entered into a definitive agreement to acquire a 100% interest in a gold

exploration project in the Department of Tolima, Colombia from a subsidiary of AngloGold Ashanti PLC

(“AngloGold Ashanti ”) through the acquisition of all the outstanding shares of AngloGold Ashanti

Colombia S.A.S. (“AGA Colombia”).

AGA Colombia is the sole registered holder of the integrated mining concession contract (National Mining

Registry code EIG-163), which grants rights for the exploration of a gold system in the municipality of

Cajamarca, Tolima. The transaction does not relate to the Quebradona project which AngloGold Ashanti

will continue to develop.

This transaction reflects Mineros’ long-standing conviction in Colombia as a jurisdiction for responsible,

well-governed mining. As a Colombian operator with decades of history in the country, Mineros brings

deep local knowledge, cultural competency, and an established track record of constructive engagement

with communities and authorities. The Company believes that assets of this nature are best stewarded by

operators with strong domestic roots, a long-term perspective, and a commitment to aligning

development pathways with local priorities.

Transaction Terms:

The acquisition will be completed on a cash-free, debt-free, zero net working capital basis. The

consideration consists of:

• $10 million payable in cash at closing; and

• Contingent consideration of up to $60 million, linked to the total tonnage of mineral ore

authorized under a “plan de trabajo y obras” (“PTO”) and an approved environmental license.

The transaction is expected to close during the first quarter of 2026, subject to customary conditions.

Mineros’ Approach to Community Engagement and Project Identity

The project has historically been referred to within the mining sector as La Colosa. As part of its integration

strategy, Mineros intends to move away from the project’s historical legacy. The Company believes that

the future of the project will be shaped by its relationship with the Department of Tolima and its

communities, rather than by historical context.

BVC: MINEROS TSX :MSA OTCQX: MNSAF 2

Accordingly, Mineros will initiate a collaborative process with local stakeholders to define a new project

identity, including a new name. This process is intended to reflect shared values, local perspectives, and

a development philosophy grounded in environmental stewardship and social responsibility. The

Company views this re-definition as a critical first step in establishing a constructive foundation for any

future decisions regarding the project. Importantly, Mineros emphasizes that any advancement of the

project will be contingent upon achieving regulatory clarity, environmental authorization, and meaningful

community consensus.

Project Overview:

The project is an exploration-stage gold asset located approximately 150 km west of Bogotá and 30 km

west of Ibagué, in the Department of Tolima. Exploration activities have been largely suspended since

2017 following the declaration of force majeure related to delays in obtaining environmental permits.

The project hosts a historical mineral resource estimate reported by AngloGold Ashanti in December 2024

of:

• Indicated Resources: 23.35 million ounces of gold at an average grade of 0.87 g/t

• Inferred Resources: 4.98 million ounces of gold at an average grade of 0.71 g/t

No mineral reserves have been declared.

Mineros has not verified this historical estimate as a current mineral resource. Mineros’ Qualified Person

has not completed sufficient work to classify the historical estimate as a current mineral resource, and

Mineros is not treating it as such. Significant data compilation, verification, and potentially additional

drilling would be required before any declaration, update or reclassification. Consequently, the QP

disclaims all liability for the accuracy, completeness, or reliability of the data provided by these external

sources.

The delineation of the Los Nevados Páramo under Resolution 1987 of 2016 remains subject to legal

proceedings and may affect portions of the historical resource estimate.

For further details on the Mineral Resources, refer to AngloGold Ashanti’s annual report on Form 20-F for

the financial year ended 31 December 2024.

ABOUT MINEROS S.A.

Mineros is a leading Latin American gold mining company headquartered in Medellín, Colombia. The

Company operates a diversified portfolio of assets in Colombia and Nicaragua and maintains a pipeline

of development and exploration projects across the region, including the La Pepa Project in Chile.

With more than 50 years of operating history, Mineros maintains a longstanding focus on safety,

sustainability, and disciplined capital allocation. Its common shares are listed on the Toronto Stock

BVC: MINEROS TSX :MSA OTCQX: MNSAF 3

Exchange (MSA) and the Colombian Stock Exchange (MINEROS) and trade on the OTCQX® Best Market

under the symbol MNSAF.

QUALIFIED PERSON

Scientific and technical information contained in this news release has been approved by Maria Vallejo,

P.Eng., FAusIMM, Vice President, Strategic Growth and Technical Services, who is a qualified person within

the meaning of NI 43-101.

Election of Directors – Electoral Quotient System

The Company has received an exemption from the individual and majority voting requirements

applicable to TSX-listed issuers. Compliance with such requirements would conflict with Colombian laws

and regulations, which require directors to be elected from a slate of nominees under an electoral

quotient system. Additional details are available in the Company’s most recent Annual Information

Form, accessible on the Company’s website at www.mineros.com.co and on SEDAR+ at

www.sedarplus.com.

For Further Information, Please Contact:

Ann Wilkinson

Vice President, Investor Relations

+1 (647) 496-3011

[email protected]

Juan Obando

Director, Investor Relations

+57 (4) 266-5757

[email protected]

FORWARD-LOOKING STATEMENTS

This news release contains “forward-looking information” within the meaning of applicable securities

laws. Forward-looking information includes statements that use forward-looking terminology such as

“may,” “could,” “would,” “will,” “should,” “intend,” “plan,” “expect,” “estimate,” “anticipate,” “believe,”

“continue,” or similar expressions. Such statements include, without limitation, those relating to the

strategic benefits of the acquisition and its impact on the Company’s asset portfolio, the contingent

deferred payments and the likelihood of them being paid, the potential for development of the La

Colosa and the Company’s ability to obtain regulatory approvals and environmental licences to advance

the integrated mining concession contract. These statements are based on current expectations and are

subject to risks and uncertainties that may cause actual results to differ materially.

BVC: MINEROS TSX :MSA OTCQX: MNSAF 4

Forward-looking information is based on management’s reasonable assumptions, estimates, and

expectations as of the date of this release. These assumptions involve known and unknown risks,

uncertainties, and other factors that may cause actual results to differ materially from those expressed

or implied, including, without limitation: the Company may fail to obtain, renew, or maintain in effect

necessary permits and licenses, including environmental permits; community opposition to mining

activity could result in disruption, delays, or an inability to advance the integrated mining concession

contract; the accuracy of the historical estimate of Inferred Mineral Resources; the Company may fail to

implement its business strategy; title disputes; regulatory changes may increase the Company’s costs of

doing business, restrict operations or result in fines, revocation of permits or facilities shutdowns; and

the additional risks described in the ‘‘Risk Factors” sections of the Company’s most recent annual

information form, available from the Company’s website www.mineros.com.co or on SEDAR+ at

www.sedarplus.com. Readers are cautioned not to place undue reliance on forward-looking

information. Mineros undertakes no obligation to update such information, except as required by

applicable securities laws.