TR-1: Standard form for notification of major holdings NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible) i 1a. Identity of the issuer or the underlying issuer
TR-1: Standard form for notification of major holdings
NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft
Word format if possible) i
1a. Identity of the issuer or the underlying issuer
of existing shares to which voting rights are
attached ii:
OROSUR MINING INC
1b. Please indicate if the issuer is a non-UK issuer (please mark with an “X” if appropriate)
Non-UK issuer X
2. Reason for the notification (please mark the appropriate box or boxes with an “X”)
An acquisition or disposal of voting rights X
An acquisition or disposal of financial instruments
An event changing the breakdown of voting rights
Other (please specify) iii:
3. Details of person subject to the notification obligation iv
Name 1832 Asset Management L.P.
City and country of registered office (if applicable) Toronto, Canada
4. Full name of shareholder(s) (if different from 3.) v
Name
City and country of registered office (if applicable)
5. Date on which the threshold was crossed or
reached vi: 07/07/2026
6. Date on which issuer notified (DD/MM/YYYY): 07/08/2026
7. Total positions of person(s) subject to the notification obligation
% of voting rights
attached to shares
(total of 8. A)
% of voting rights
through financial
instruments
(total of 8.B 1 + 8.B 2)
Total of both in %
(8.A + 8.B)
Total number of
voting rights held
in issuer (8.A +
8.B) vii
Resulting situation
on the date on which
threshold was
crossed or reached
9.981172% 9.981172% 40,025,000
Position of previous
notification (if
applicable)
12.087124% 12.087124% 37,765,000
8. Notified details of the resulting situation on the date on which the threshold was crossed or
reached viii
A: Voting rights attached to shares
Class/type of
shares
ISIN code (if possible)
Number of voting rights ix % of voting rights
Direct
(DTR5.1)
Indirect
(DTR5.2.1)
Direct
(DTR5.1)
Indirect
(DTR5.2.1)
Equity:
CA6871961059 40,025,000 9.981172
SUBTOTAL 8. A 40,025,000 9.981172
B 1: Financial Instruments according to DTR5.3.1R (1) (a)
Type of financial
instrument
Expiration
date x
Exercise/
Conversion Period xi
Number of voting rights
that may be acquired if
the instrument is
exercised/converted.
% of voting rights
SUBTOTAL 8. B 1
B 2: Financial Instruments with similar economic effect according to DTR5.3.1R (1) (b)
Type of financial
instrument
Expiration
date x
Exercise/
Conversion
Period xi
Physical or
cash
Settlement xii
Number of
voting rights % of voting rights
SUBTOTAL
8.B.2
9. Information in relation to the person subject to the notification obligation (please mark the
applicable box with an “X”)
Person subject to the notification obligation is not controlled by any natural person or legal entity and does not
control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer xiii
Full chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held starting with the ultimate controlling natural person or legal entity
(please add additional rows as necessary) xiv
X
Name xv
% of voting rights if it
equals or is higher
than the notifiable
threshold
% of voting rights
through financial
instruments if it equals
or is higher than the
notifiable threshold
Total of both if it
equals or is higher
than the notifiable
threshold
1832 Asset
Management L.P.
(1832AMLP) (ultimate
controlling person)
9.981172% 0% 9.981172%
Underlying funds:
Dynamic Precious
Metals Fund (mutual
fund managed by
1832AMLP) (see
additional information
below)
7.003579% 0% 7.003579%
Dynamic Strategic Gold
Class (mutual fund
managed by 1832AMLP)
(see additional
information below)
2.977593% 0% 2.977593%
10. In case of proxy voting, please identify:
Name of the proxy holder 1832 Asset Management L.P.
The number and % of voting rights held 9.981172%
The date until which the voting rights will be held
11. Additional information xvi
1832 Asset Management L.P. (1832AMLP) – 1832AMLP was formed as a limited partnership
under the laws of Ontario, Canada, and its general partner is 1832 Asset Management G.P. Inc.,
each of which are a wholly-owned subsidiary of The Bank of Nova Scotia.
Dynamic Precious Metals Fund – is a mutual fund registered in the province of Ontario.
1832AMLP is the portfolio manager of the Dynamic Precious Metals Fund and therefore has the
investment discretion and to power to vote proxies on behalf of this mutual fund.
Dynamic Strategic Gold Class – is a mutual fund registered in the province of Ontario.
1832AMLP is the portfolio manager of the Dynamic Strategic Gold Class and therefore has the
investment discretion and to power to vote proxies on behalf of this mutual fund.
Place of completion Toronto
Date of completion 08/07/2026