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Tuesday, September 15, 2026 Admin

OMI.V ·

Granting of RSUs London, May 1 st, 2026 Orosur Mining Inc. ("Orosur" or "the Company") (TSXV: OMI) (AIM: OMI) announces the granting of an aggregate of 13,650,000 Restricted Stock Units ("RSUs") to directors, officers, employees and consultants of the Company, upon recommendation of the Company' s

Share Capital & Compensation

Orosur Mining Inc.

Granting of RSUs

London, May 1 st, 2026 Orosur Mining Inc. ("Orosur" or "the Company") (TSXV: OMI) (AIM: OMI)

announces the granting of an aggregate of 13,650,000 Restricted Stock Units ("RSUs") to directors,

officers, employees and consultants of the Company, upon recommendation of the Company' s

Remuneration Committee, in recognition of the Company's progress and as incentivisation for future

performance.

At the Company's AGM held on 17 December 2025, shareholders voted to permit the Company to

maintain a "rolling" securities-based compensation plan, reserving for issuance, a maximum of 10% of

the issued shares of the Company from time to time.

Further to the award of the RSUs set out above, the total number of shares under Option, RSUs and

DSUs is 26,440,004 which represents 6.7% of the non-diluted issued share capital of the Company.

Award of RSUs

In line with the Company's Equity Incentive Plan, which was approved by shareholders at the

Company's AGM in December 2023 and as updated, amended, and approved at the AGM in December

2025, officers, employees and consultants of the Company have been grant ed a total of 5,950,000

RSUs and 7,700,000 RSUs have been granted to Directors. The RSUs entitle the holder to new

common shares of the Company upon the vesting conditions for the RSU being satisfied. There is no

price paid for the RSUs and they expire three years after the date of grant. The RSUs shall vest on the

first anniversary of the date of this grant.

A summary of Director and Officer RSU grants and resultant interests is as follows:

Directors & Officers

RSUs awarded

Total RSUs,

DSUs and

options held

% Shareholding

currently held in

the Company

Louis Castro

3,100,000 4,500,000 0.05%

Brad George

3,100,000 1,940,000 0.41%

Thomas Masney

750,000 585,000 0.07%

Nick von Schirnding

750,000 720,000 0.11%

Joaquin Sarroca

1,600,000 1,205,000 0.15%

Omar Gonzalez

200,000 183,334 nil%

Total

9,500,000 9,133,334 0.79%

Note 1: Percentage interest in total number of common shares currently issued

Notification and public disclosure of transactions by persons discharging managerial

responsibilities and persons associated closely with them:

1 Details of person discharging managerial responsibilities/person closely associated

a) Full Name i. Louis Castro

ii. Bradley George

iii. Thomas Masney

iv. Nick von Schirnding

v. Joaquin Sarroca

vi. Omar Gonzalez

2 Reason for notification

a) Position/Status i) Chairman of the Board

ii) CEO and Director

iii) Non-Executive Director

iv) Non-Executive Director

v) Company Secretary and Corporate Counsel

vi) CFO

b) Initial

notification/amendment

Initial notification

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.

a)

Description of the

financial instrument, type

of instrument

Grant of Restricted Stock Units ("RSUs")

b) Identification code ISIN: CA6871961059

c) Nature of transaction Grant of RSUs

d) Prices and volumes i) 3,100,000 RSUs

ii) 3,100,000 RSUs

iii) 750,000 RSUs

iv) 750,000 RSUs

v) 1,600,000 RSUs

vi) 200,000 RSUs

e) Aggregated information Grant of a total of 9,500,000 RSUs at nil price

f) Date of transaction May 1st, 2026

g) Place of transaction Outside of trading venue

For further information, visit www.orosur.ca, follow on X @orosurm or please contact:

Orosur Mining Inc

Louis Castro, Chairman,

Brad George, CEO

[email protected]

Tel: +1 (778) 373-0100

SP Angel Corporate Finance LLP - Nomad & Broker

Caroline Rowe / Jen Clarke/ Devik Mehta

Tel: +44 (0) 20 3 470 0470

Turner Pope Investments (TPI) Ltd - Joint Broker

Andy Thacker/Guy McDougall

Tel: +44 (0)20 3657 0050

Flagstaff Communications

Tim Thompson

Alison Allfrey

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 Regulations (EU) No. 596/2014 ('MAR') which has

been incorporated into UK law by the European Union (Withdrawa l) Act 2018. Upon the publication of

this announcement via Regulatory Information Service ('RIS'), this inside information is now considered

to be in the public domain.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies

of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

About Orosur Mining Inc.

Orosur Mining Inc. (TSXV: OMI; AIM: OMI) is a minerals explorer and developer currently operating in

Colombia and Argentina.