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OMI.V ·

Colombia Update

Corporate Updates

CORPORATE

Orosur Mining Inc.

Colombia Update

London, January 23, 2024. Orosur Mining Inc. ("Orosur" or the "Company") (TSX-V: OMI) (AIM: OMI) the

minerals developer and explorer with operations in Colombia, Argentina, Nigeria and Brazil, is pleased to

announce an update on the Company's Anzá Project ("Project") in Colombia.

The Project is the subject of an Exploration Agreement with Venture Option ("Exploration Agreement")

dated September 7, 2018, with Colombian company Minera Monte Águila S.A.S. ("MMA"), pursuant to

which MMA has earned a 51% interest in the Project. MMA is itself a 50/50 joint venture between Newmont

Corporation ("Newmont") and Agnico Eagle Mines Limited ("Agnico"). MMA is the current operator of the

Project.

As previously announced, MMA advised the Company that it would be undertaking a review of its continued

involvement in the Project. Subsequently, the parties commenced discussions regarding the future of the

Project, which are currently focussed on explor ing options whereby Orosur would acquire MMA's interest

in the Project. Such an outcome, if achieved, would see the Company returning to having a direct or indirect

interest of 100% in the Project.

Negotiations are progressing toward this objective; however, these are not final and as such there is no

certainty that such a transaction will be agreed, and if so, on what terms. The parties are examining a

range of commercial and structuring options, a s well as undertaking prudent due diligence, and as such,

finalisation of any agreement may take some time.

Further announcements will be made in due course as the process continues.

Orosur CEO Brad George commented:

"We have stated publicly on several occasions that our desired outcome is to retake control of Anzá, and if

possible, to also resume 100% ownership of the Project. We have been working towards this objective for

some months, but we are also focussed on the legal complexities of any such transaction, ensuring that

any commercial terms do not negatively impact the viability of the Project going forward. We see great

potential at Anzá, and whilst there is no certainty this deal will complete, should it happen, we will then be

in the driving seat and be able to take the initiative on the Project."

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

Orosur Mining Inc.

Louis Castro, Chairman,

CORPORATE

Brad George, CEO

[email protected]

Tel: +1 (778) 373-0100

SP Angel Corporate Finance LLP - Nomad & Joint Broker

Jeff Keating / Caroline Rowe / 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 (Withdrawa l) Act 2018. Upon the publication of this

announcement via Regulatory Information Service ('RIS'), this inside information is now considered to be

in the public domain.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of

the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

About Orosur Mining Inc.

Orosur Mining Inc. (TSX -V: OMI; AIM: OMI) is a minerals explorer and developer focused on identifying

and advancing projects in Colombia, Argentina, Nigeria and Brazil.

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.

CORPORATE

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 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 i n 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 m aterially 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 Company's MD&A. The Company disclaims a ny

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.