30-03-2023

Current report no. 16/2023

Re: Impact of the change in the estimated costs arising from legal riskattached to the FX mortgage loans portfolio on the financial performanceof Santander Bank Polska Group for Q1 2023

The Management Board of Santander Bank Polska S.A. (_quot;Bank_quot;) herebyadvises that the impact of the decisions made on 30 March 2023 by theBank and by Santander Consumer Bank S.A (_quot;SCB_quot;), a subsidiary of theBank, on changing the estimated costs arising from legal risk attachedto the FX mortgage loans portfolio on the consolidated pre-tax profitfor Q1 2023 will be PLN 287m, of which PLN 241m for the Bank and PLN 46mfor SCB.

Detailed information in this respect will be disclosed in the financialreport for the Q1 2023.

Legal basis:

Article 17(1) of the Market Abuse Regulation