Holding(s) in Company

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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 at-tached 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:			02/11/2026
6. Date on which issuer notified (DD/MM/YYYY):			04/11/2026
7. Total positions of person(s) subject to the notification obligation
	% of voting rights at-tached to shares (to-tal of 8. A)	% of voting rights through financial instru-ments (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	4.854683%			4.854683%	21,957,788
Position of previous notification (if applicable)	9.981172%			9.981172%	40,025,000

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				21,957,788					4.854683


SUBTOTAL 8. A		21,957,788					4.854683

B 1: Financial Instruments according to DTR5.3.1R (1) (a)
Type of financial in-strument		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 Pe-riod 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 in-struments 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 Manage-ment L.P. (1832AMLP) (ultimate controlling per-son)	4.854683%	0%	4.854683%
Dynamic Precious Met-als Fund (mutual fund managed by 1832AMLP) (see additional infor- mation below)	3.564660%	0%	3.564660%
Dynamic Strategic Gold Class (mutual fund man-aged by 1832AMLP) (see additional infor- mation below)	1.290023%	0%	1.290023%



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		4.854683%
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 un-der 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.

Place of completion	Toronto
Date of completion	04/11/2026

Summary by AI ^BETAClose X

Orosur Mining Inc.

TR-1: Standard form for notification of major holdings

London, November 05, 2026 Orosur Mining Inc (TSX-V/AIM:OMI) advises that it has received a TR-1 Standard form notification of major holdings from 1832 Asset Management L.P., dated November 04, 2026.

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