LONDON - Orosur Mining Inc. ('Orosur' or 'the Company') (TSX: OMI) (AIM: OMI), a South American-focused gold developer and explorer announces that following the exercise of share options by Orosur's legal counsel and corporate secretary, Joaquin Sarroca, the Company will issue 168,334 New Common Shares which, on Admission, will rank pari passu with the existing Common Shares.

It is expected that Admission of these New Common Shares will become effective on or about March 17, 2021.

In large part to meet the exercise costs of these options, Mr. Sarroca has sold 100,000 shares in the Company. As a result of the exercise of options and the sale of shares, noted above, Mr. Sarroca has increased his shareholding in the Company by 68,334 shares. He now holds 168,334 shares in the Company representing 0.09% of the Company's issued share capital.

Further to the issue of New Common Shares noted above, the total number of common shares of no par value in the Company as at the date of this announcement is 188,346,770. There are currently no shares held in treasury. The total number of voting rights in the Company is therefore 188,346,770.

Contact:

Tel: +1 (778) 373-0100

Email: info@orosur.ca

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.

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