ING Bank Slaski S.A.

Report Publication Announcement • Dec 10, 2025

Report Content 2025-12-10 Report No. 30/2025: Information on the buy-back of the 6thtranche of own shares.

Further to the information provided in Current Report No. 29/2025 of 2December 2025, the Management Board of ING Bank Śląski S.A. ("Bank")announce that between 4 December 2025 and 9 December 2025 the Bankthrough Dom Maklerski Trigon S.A. acquired 19,304 own shares.

The own shares acquired for the total amount of PLN 6,586,562.50 at anaverage price of PLN 341.20 per share represent approx. 0.01484% of theshare capital and approx. 0.01484% of the total number of votes at theGeneral Meeting of the Bank.

The Enclosure provides for the transaction details and the aggregatednumbers for individual days from 4 December 2025 to 9 December 2025.

Legal grounds: Article 2.3 of Commission Delegated Regulation (EU)2016/1052 of 8 March 2016 supplementing Regulation (EU) No. 596/2014 ofthe European Parliament and of the Council with regard to regulatorytechnical standards for the conditions applicable to buy-back programmesand stabilisation measures, in conjunction with Article 5 of Regulation(EU) No. 596/2014 of the European Parliament and of the Council of 16April 2014 on market abuse (Market Abuse Regulation).