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OMI.V ·

Orosur Mining Inc. – Colombia Update

Corporate Updates

Orosur Mining Inc. – Colombia Update

Medellín, Colombia, March 5, 2020. Orosur Mining Inc. (“Orosur” or “the Company”) (TSX/AIM: OMI), a South

American-focused gold developer and explorer, is pleased to announce that it has received a cash payment of

US$500,000 from Newmont Colombia S.A.S. (“Newmont”), a wholly owned subsidiary of Newmont Corporation,

in connection with maintaining its earn-in rights pursuant to the Exploration Agreement with Venture Option over

the Anzá project in Colombia (the “Exploration Agreement”).

As previously announced on September 10, 2018, the Exploration Agreement comprises a three-phase earn-in

structure, allowing Newmont to earn up to a 75% ownership interest in the Anzá project (“Anzá”) by making semi-

annual cash payments to Orosur equaling a total of US$4 million over Phases 1 and 2, spending a minimum of

US$30 million in qualifying expenditures over twelve years, and also completing N.I. 43-101 compliant pre-

feasibility and feasibility studies through the end of Phase 3.

In Phase 1, Newmont may earn a 51% ownership interest in Anzá by spending US$10 million in qualifying

expenditures over four years and making cash payments to Orosur equalling a total of US$2 million during the

first two years of the Phase 1 earn-in period. In accordance with the Phase 1 earn-in right, Newmont has made

three of four US$500,000 cash payments to Orosur and the fourth payment is expected in September 2020.

During the first two years of the Exploration Agreement (commencing September 2018), Newmont is committed

to spend a minimum of US$1 million per year on qualifying expenditures (“Minimum Work Commitment”), or pay

Orosur cash in lieu of completing said minimum work commitment, in order to maintain the Phase 1 earn-in right.

In years 3 and 4, the Minimum Work Commitment increases to US$4 million per year.

For further information, please contact:

Orosur Mining Inc

Ignacio Salazar, Chief Executive Officer

Ryan Cohen, VP Corporate Development

[email protected]

Tel: +1 (778) 373-0100

SP Angel Corporate Finance LLP – Nomad & Joint Broker

Jeff Keating / Stephen Wong

Tel: +44 (0) 20 3 470 0470

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

under the Market Abuse Regulation ("MAR"). Upon the publication of this announcement via Regulatory Information Service,

this inside information is now considered to be in the public domain. If you have any queries on this, then please contact Ryan

Cohen, VP Corporate Development of the Company (responsible for arranging release of this announcement on behalf of the

Company) on: +1 (778) 373-0100.

About Orosur Mining Inc.

Orosur Mining Inc. (TSX: OMI; AIM: OMI) is a precious metals developer and explorer focused on identifying and

advancing gold projects in South America. The Company operates in Colombia and Uruguay.