Director Dealings and Exercise of Options

Orosur Mining Inc. ("Orosur" or the "Company")

Director Dealings and Exercise of Options

London, 10th December 2020. Orosur Mining Inc (TSX/AIM:OMI) announces that on 9 December 2020, Brad George, CEO of the Company, acquired 50,000 common shares of no par value each in the Company ("Common Shares"), Louis Castro, Non-Executive Chairman, acquired 47,000 Common Shares, and Thomas Masney (Non-Executive Director) acquired 10,000 Common Shares.

Following these purchases, Brad George is interested in 50,000 Common Shares, representing 0.03 per cent. of the Company's issued share capital, Louis Castro is interested in 47,000 Common Shares representing 0.03 per cent. of the Company's issued share capital, and Thomas Masney is interested in 10,000 Common Shares, representing 0.005 per cent. of the Company's issued share capital.

Exercise of options

The Company has also approved the issue of 100,000 Common Shares following the exercise of options by an employee.

Application has been made for the 100,000 Common Shares, which rank pari passu with the existing Common Shares in issue, to be admitted to trading on AIM ("Admission"). It is expected that Admission will become effective and dealings will occur at 8:00am UK time on or around 15 December 2020.

Following Admission and for the purposes of the Disclosure Guidance and Transparency Rules, the Company will have 187,158,753 Common Shares in issue. Shareholders may use this figure as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the issued share capital of the Company.

Following Admission, the Company will have 2,748,315 options outstanding.

For further information, please 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 / Caroline Rowe

Tel: +44 (0) 20 3 470 0470

Turner Pope Investments (TPI) Ltd - Joint Broker

Andy Thacker

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 Regulation ("MAR"). Upon the publication of this announcement via Regulatory Information Service, this inside information is now considered to be in the public domain.

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.

Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them.