Company: BCDRF
Filing Date: 2025-02-28
Form Type: 20-F
Source: 0000891478-25-000054
Chunk: 724

Company: Banco Santander, S.A.
Filing Date: 2025-02-28
Form: 20-F
Chunk 724
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 2022 in respect of contributions to defined contribution plans amounted to EUR 126million, EUR 116million and EUR 101million, respectively. The amount of the defined benefit obligations was determined on the basis of the work performed by independent actuaries using the following actuarial techniques: 1. Valuation method: projected unit credit method, which sees each period of service as giving rise to an additional unit of benefit entitlement and measures each unit separately. 2. Actuarial assumptions used: unbiased and mutually compatible. Specifically, the most significant actuarial assumptions used in the calculations were as follows:

Annual report 2024 671

| Contents |     | Auditor's report |     | Consolidated financial statements |     | Notes to the consolidated financial statements |     | Appendix |

|                                              |     | Post-employment plans |      |                          |        |      |                          |        |      |                          |     | Other similar obligations |      |                          |     |      |                          |     |      |                          |
|                                              |     |                       |      |                     2024 |        |      |                     2023 |        |      |                     2022 |     |                           |      |                     2024 |     |      |                     2023 |     |      |                     2022 |
| Annual discount rate                         |     |                       | 3.00 |                        % |        | 3.35 |                        % |        | 3.80 |                        % |     |                           | 3.00 |                        % |     | 3.35 |                        % |     | 3.80 |                        % |
| Mortality tables                             |     |                       |      | PER2020 M/F Col. Orden 1 |        |      | PER2020 M/F Col. Orden 1 |        |      | PER2020 M/F Col. Orden 1 |     |                           |      | PER2020 M/F Col. Orden 1 |     |      | PER2020 M/F Col. Orden 1 |     |      | PER2020 M/F Col. Orden 1 |
| Cumulative annual CPI growth                 |     |                       | 2.00 |                        % |        | 2.00 |                        % |        | 2.00 |                        % |     |                           | 2.00 |                        % |     | 2.00 |                        % |     | 2.00 |                        % |
|