BNC Banco Santander S.a.

Further to the notice of other relevant information registered with the Spanish National Securities Market Commission (Comisión Nacional del Mercado de Valores) on 4 December 2024 (registry number 31651), it is communicated that on 20 December 2024 the public deed of capital reduction (and consequent Bylaw amendment) for the amount of EUR 170,890,625, through the cancellation of 341,781,250 own shares, representing approximately 2.21 % of the Bank's share capital, was registered with the Commercial Registry of Santander.

Consequently, the Bank's share capital has been set at EUR 7,576,246,161, represented by 15,152,492,322 shares with a nominal value of EUR 0.50 each. All of the shares belong to the same class and have the same rights.

It is stated for the record that, once the seven buyback programmes carried out against the 2021, 2022, 2023 and the first semester of 2024 results have been completed, the accumulated share capital reduction amounts to EUR 1,094,074,490, with the Bank having repurchased 2,188,148,980 shares since November 2021, approximately 12.62 % of its outstanding shares as of that date.