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Montero Provides Update on the Expropriation of the Wigu Hill Rare Earth Deposit in Tanzania

Legal & Disputes

Montero Provides Update on the Expropriation of

the Wigu Hill Rare Earth Deposit in Tanzania

Toronto, Ontario – May 27, 2021 – Montero Mining and Exploration Ltd. (TSX-V: MON) (“Montero” or the

“Company”) filed a request for arbitration with the International Centre for Settlement of Investment Disputes

(ICSID) on 8 January 2021. Subsequently on the 9 February 2021 the Secretary -General of the ICSID re gistered

Montero’s request for the institution of arbitration proceedings against the G overnment of Tanzania for the illegal

expropriation and loss of its Wigu Hill rare earth element Project.

Currently, ICSID is in the process of constitution of the arbitral tribunal. Montero and Tanzania (the “Parties”) ha ve

both appointed their respective arbitrator and now have to agree on a third arbitrator, who shall be the president

of the tribunal at which point ICSID will then request the parties to make a deposi t of US$150,000.

Montero has initiated international arbitration proceedings through ICSID in accordance with the Bilateral

Investment Treaty between Canada and the United Republic of Tanzania which protects investment rights . A

multi-million compensatio n award is being sought by Montero for expropriation of the Wigu Hill R are Earth

Element Project by the Government of Tanzania. This is as a result of damages suffered by the Company as a result

of Tanzania’s Act and Omissions.

Montero is not able to make any comment in relation to the potential quantum of any claim for compensation at

this point. Montero ha s obtained third- party litigation funding from Omni Bridgeway, a leading global dispute

funder. Montero has retained Mr Thierry Lauriol and his team at Jeantet AARPI, a highly experienced legal

counsel in international arbitration with a track record of su ccess for its clients in Africa. Most recently at ICSID

representing GDF-Suez vs the Government of Tog o with an award of €55 million. Montero has also retained the

services of Dr Neal Rigby of SRK Denver to act as its independent technical expert for the valuation of Wigu Hill. Dr

Rigby has acted in this capacity in many successful international mining litigations involving ICSID arbitrations. In

Africa he was the independent technical expert in the US$136 million award to the previous shareholders of Africo

Resources in the DRC.

For further information see Montero press release (PR119 dated 8 January 2021 ) and from the I CSID website

(https://icsid.worldbank.org/services/arbitration/convention/process/overview ).

Qualified Person's Statement

This press release was reviewed and approved by Mr. Mike Evans, M.Sc. Pr.Sci.Nat. is a qualified person for the

purpose of National Instrument 43 -101. This has also been reviewed by Mr Thierry Lauriol , avocat à la cour (Paris,

France).

About Montero

Montero is a junior exploration company focused on finding, exploring, and advancing globally significant gold

deposits in Latin America. The Company is in the process of relinquishing its portfolio of battery metal projects in

Africa to focus on gold opportunities in Latin America. Montero’s board of directors and management have an

impressive track record of successfully discovering and advancing precious metal and copper projects. Montero

trades on the TSX Venture Exchange under the symbol MON and has 38,647,485 shares outstanding.

For more information, contact:

Montero Mining and Exploration Ltd.

Dr. Tony Harwood, President and Chief Executive Officer

E-mail: [email protected]

Tel: +1 416 840 9197 | Fax: +1 866 688 4671

www.monteromining.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Ventu re Exchange) accepts

responsibility for the adequacy or accuracy of this release.

CAUTIONARY STATEMENT REGARDING FORWARD -LOOKING INFORMATION: This news release includes certain "forward- looking information"

within the meaning of applicable Canadian securi ties laws. Forward looking information includes, but is not limited to, statements, projections

and estimates with respect to the Share Consolidation. Generally, forward-looking information 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”, or “believes”, or variations of such words and phrases or state that certain actions, events or re sults

“may”, “could”, “would”, “might” or “will be taken”, “occur” or “be achieved”. Such information is based on information currently available to

Montero and Montero provides no assurance that actual results will meet management's expectations. Forward -looking information by its very

nature involves inherent risks and uncertainties that may cause the actual results, level of activity, performance, or achievements of Montero to

be materially different from those expressed or implied by such forward- looking information. Actual results relating to, among other things,

completion of the agreement , results of exploration, project development, reclamation and capital costs of Montero’s mineral properties, and

financial condition and prospects, could differ mate rially from those currently anticipated in such statements for many reasons such as: an

inability to complete the agreement on the terms as announced or at all; changes in general economic conditions and conditions in the financial

markets; changes in demand and prices for minerals; litigation, legislative, environmental and other judicial, regulatory, political and

competitive developments; technological and operational difficulties encountered in connection with Montero’s activities; and other matters

discussed in this news r elease and in filings made with securities regulators. This list is not exhaustive of the factors that may affect any of

Montero’s forward-looking statements. These and other factors should be considered carefully and accordingly, readers should not place undue

reliance on forward-looking information. Montero does not undertake to update any forward- looking information, except in accordance with

applicable securities laws.