Notification in accordance with the Finnish Securities Market Act Chapter 9 (*) 10: BlackRock, Inc.'s holding in Wartsila Corporation.

BlackRock, Inc. has informed Wartsila Corporation that it has crossed above the 5% disclosure limit on holding in shares and voting rights, excluding financial instruments according to SMA 9:6a, on 7 November 2025. Following the transaction, BlackRock, Inc. owns 5.04% of Wartsila's shares and voting rights, while its total holding in Wartsila Corporation corresponds to 5.10%.

Total position of BlackRock, Inc. and its funds subject to the notification:

	% of shares and voting rights 	% of shares and voting rights through financial instruments 	Total of both in % 	Total number of shares and voting rights of issuer
Resulting situation on the date on which threshold was crossed or reached 	5.04% 	0.05% 	5.10% 	591,723,390
Position of previous notification (if applicable) 	4.98% 	0.15% 	5.13%

Notified details of the resulting situation on the date on which the threshold was crossed or reached:

A: Shares and voting rights

Class / type of shares 	Number of shares and voting rights 	% of shares and voting rights
	Direct (SMA 9:5) 	Indirect (SMA 9:6 and 9:7) 	Direct (SMA 9:5) 	Indirect (SMA 9:6 and 9:7)
FI0009003727 		29,880,150 		5.04%
SUBTOTAL A 	29,880,150 	5.04%

B: Financial instruments according to SMA 9:6a

Type of financial instrument 	Expiration date 	Exercise / Conversion Period 	Physical or cash settlement 	Number of shares and voting rights 	% of shares and voting rights
American Depositary Receipt (US9365441057) 	N/A 	N/A 	Physical 	128 	0.00%
Securities Lent 	N/A 	N/A 	Physical 	150 	0.00%
CFD 	N/A 	N/A 	Cash 	320,772 	0.05%
			SUBTOTAL B 	321,050 	0.05%

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