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Orosur Mining Inc – Colombia update

Corporate Updates

CORPORATE

Orosur Mining Inc – Colombia update

• Negotiations to complete the Mining Company Constituent Documents

with Minera Monte Aguila are progressing.

• US$2 million Phase 2 Payment to be paid soon.

• Process of forming new JV company underway.

• Once formed, the JV company will be owned 49% by Orosur and 51% by

Minera Monte Aguila.

London, Tuesday 17th January, 2023 . Orosur Mining Inc. (“Orosur” or the

“Company”) (TSXV/AIM:OMI), is pleased to provide an update to progress at the

Company’s flagship Anzá Project (“Project”) in Colombia.

The Project is subject to an Exploration Agreement with Venture Option (“Exploration

Agreement”) with Colombian company Minera Monte Águila (“MMA”). MMA is itself a

joint venture between Newmont Corporation (“Newmont”) and Agnico Eagle Mines

Limited (“Agnico”), and is the Colombian entity by which these two companies jointly

exercise their rights and obligations with respect to the Exploration Agreement over

the Project.

Orosur is pleased to announce that the Company and MMA are advancing

negotiations of a joint venture a greement (the “ Mining Company Constituent

Documents”) that would govern the development and operations of the Project. The

joint venture will operate under a new Colombia legal entity (the “Mining Company”)

that w ould hold the Project mining concessions and applications , with MMA as

manager. The process to create the Mining Company has now commenced and is

expected to take several months to complete. During this process, MMA will be able

to continue exploration at the Project, and any expenditures incurred by MMA during

this interim period will form part of the Phase 2 qualifying expenditures.

In the meantime, MMA has agreed to pay the US$2 million Phase 2 Payment

contemplated by the Exploration Agreement to Orosur, in advance of finalising the

Mining Company Constituent Documents. Funds are expected to be received from

MMA soon.

After the formation of the Min ing Company and entering into the Mining Company

Constituent Documents, as per the Phase 2 earn -in provisions, MMA may earn an

additional 14% ownership in the Mining Company if it has spent US$20 million in

qualifying exploration expenditures on the Project on or prior to the fourth anniversary

of the parties entering into the Mining Company Constituent Documents. If the Phase

2 earn -in is completed, MMA would own 65% of the Mining Company and the

Company would own the remaining 35%.

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Orosur Executive Chairman Louis Castro commented:

“We are pleased that MMA will be advancing to Phase 2 of the Project and that the

US$2 million will be paid soon. Both actions support the Company’s continued belief

in the strength and potential of the Project”.

For further information, visit www.orosur.ca , follow on twitter @orosurm or contact:

Orosur Mining Inc.

Louis Castro, Chairman,

Brad George, CEO

[email protected]

Tel: +1 (778) 373-0100

SP Angel Corporate Finance LLP – Nomad & Joint Broker

Jeff Keating / Kasia Brzozowska

Tel: +44 (0) 20 3 470 0470

Turner Pope Investments (TPI) Ltd – Joint Broker

Andy Thacker/James Pope

Tel: +44 (0)20 3657 0050

Flagstaff Communications and Investor Communications

Tim Thompson

Mark Edwards

Fergus Mellon

[email protected]

Tel: +44 (0)207 129 1474

The information contained within this announcement is deemed by the Company to constitute inside

information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 ('MAR') which has been

incorporated into UK law by the European Union (Withdrawal) Act 2018. Upon the publication of this

announcement via Regulatory Information Service ('RIS'), this insi de information is now considered to be in the

public domain.

About Orosur Mining Inc.

Orosur Mining Inc. (TSXV / AIM: OMI) is a minerals explorer and developer focused on identifying and advancing

projects in South America. The Company operates in Colombia , Argentina and Brazil and has discontinued

operations in Uruguay.

About the Anzá Project

Anzá is a gold exploration project, comprising three exploration licences, four exploration licence applications,

and several small exploitation permits, totalling 207.5km2 in the prolific Mid-Cauca belt of Colombia.

The Anzá Project is currently wholly owned by Orosur via its subsidiary, Minera Anzá S.A.

The project is located 50km west of Medellin and is easily accessible by all -weather roads and boasts excellent

infrastructure including water, power, communications and large exploration camp..

Forward Looking Statements

All statements, other than statements of historical fact, contained in this news release constitute “forward looking

statements” within the meaning of applicable securities laws, including but not limited to the “safe harbour”

provisions of the United States Private Securities Litigation Reform Act of 1995 and are based on expectations

estimates and projections as of the date of this news release.

Forward-looking statements include, without limitation; the exploration plans in Colombia and the funding from

Minera Monte Águila of those plans; Minera Monte Águila´s continued involvement in the Anza Project; the timing

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for the formation of a new mining company or mining venture to hold the project; the entering into of the JVA

between the Company and MMA; the possibility of further expenditures by MMA during the interim period; the

ability for Loryser to implement the Creditor´s Agreement successfully in Uruguay and other events or conditions

that may occur in the future. The Company’s continuance as a going concern is dependent upon its ability to

obtain adequate financing, to reach profitable levels of operations and to reach a satisfactory implementation of

the Creditor´s Agreement in Uruguay. These material uncertainties may cast significant doubt upon the

Company’s ability to realize its assets and discharge its liabilities in the normal course of business and

accordingly the appropriateness of the use of accounting principles applicable to a going concern. There can be

no assurance that such statements will prove to be accurate. Actual results and future events could differ

materially from those anticipated in such forward-looking statements. Such statements are subject to significant

risks and uncertainties including, but not limited, those as described in Section “Risks Factors” of the MDA and

the Annual Information Form. The Company disclaims any intention or obligation to update or revise any forward-

looking statements whether as a result of new information, future events and such forward-looking statements,

except to the extent required by applicable law.