Orosur Mining : Purchase and Sale of Shares

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

Purchases and sale of shares

London, 20th July 2021. Orosur Mining Inc (TSX/AIM:OMI) announces that yesterday, Brad George, CEO of the Company, acquired 20,000 common shares of no par value each in the Company ("Common Shares") and Louis Castro, Executive Chairman, acquired 10,000 Common Shares. Joaquin Sarroca, the Company's legal counsel and corporate secretary, has sold 118,000 Common Shares.

Following these transactions, Brad George is interested in 112,000 Common Shares, representing 0.06 per cent. of the Company's issued share capital; Louis Castro is interested in 95,000 Common Shares representing 0.05 per cent. of the Company's issued share capital; and Joaquin Sarroca is interested in 50,344 Common Shares, representing 0.03 per cent. of the Company's issued share capital.

For further information, please contact:

Orosur Mining Inc

Louis Castro, Executive Chairman Brad George, CEO [e-mail]

Tel: [phone]

SP Angel Corporate Finance LLP - Nomad & Joint Broker

Jeff Keating / Caroline Rowe

Tel: [phone]

Turner Pope Investments (TPI) Ltd - Joint Broker

Andy Thacker/James Pope

Tel: [phone]

Flagstaff Communications and Investor Communications

Tim Thompson

Mark Edwards

Fergus Mellon [e-mail]

Tel: [phone]

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 ('MAR') which has been incorporated into UK law by the European Union (Withdrawal) Act 2018. Upon the publication of this announcement via Regulatory Information Service ('RIS'), this inside 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.

1.	Details of PDMR / person closely associated with them ('PCA')
a)	Name		1. Brad George
			2. Louis Castro
			3. Joaquin Sarroca
2.	Details of PDMR / person closely associated with them ('PCA')
a)	Position / status		1. CEO
			2. Executive Chairman
			3. Legal counsel & company secretary
b)	Initial notification /		Initial notification
	amendment
3.	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction
	monitor
a)	Name			Orosur Mining Inc.
b)	LEI			213800CRYQM3M8G1OI19
4.	Details of the transaction(s): section to be repeated for (i) each type of instrument;
	(ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been
	conducted
c)	Description of the		Common shares of no par value each
	financial instrument
			ISIN: CA6871961059
d)	Nature of the		1 and 2 Purchase of shares
	transaction
			3. Sale of shares
e)	Price(s) and volume(s)
			Price(s)		Volume(s)
			1.	17.7p	20,000
			2.	17.675p	10,000
			3. 0.325 CAD	39,000
			0.33 CAD	4,000
			0.34 CAD	15,000
			0.325 CAD	2,500
			0.32 CAD	17,500
			0.31CAD	6,500
			0.295 CAD	6,500
			0.29 CAD	20,500
			0.285 CAD	6,500

f)	Aggregated	See above.
	information
	Aggregated volume
	Price
g)	Date of the	1 and 2: 19th July 2021
	transaction
		3: 15,16 & 19 July 2021
h)	Place of the	1 and 2. AIM
	transaction
		3. TSX