Orosur Mining Inc. ('Orosur' or 'the Company') (TSX/AIM: OMI), a South American-focused gold developer and explorer announces that a block listing application ('Block Listing') has been made to the London Stock Exchange for up to 11,764,706 common shares of no par value each in the Company ('New Common Shares') to be admitted to trading on AIM.

Forming part of the Company's successful capital raising in late November 2020, the Company has on issue a total of 11,764,706 unlisted warrants exercisable at a price of 25.5 pence per New Common Share at any time prior to 7 December 2022.

Exercise of Options

Following the exercise of share options by a former employee, the Company has issued 225,565 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 at 8:00a.m. on or around 1 March 2021. For the avoidance of doubt, these shares are not being issued from the Block Listing authority noted above.

Further to the issue of the 225,565 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 187,384,318. There are currently no shares held in treasury. The total number of voting rights in the Company is therefore 187,384,318.

Contact:

Tel: +1 (778) 373-0100

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.

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