Banco Santander (Brasil) S.A. Board of Directors Meeting Minutes

The Board of Directors of Banco Santander (Brasil) S.A. held a meeting on September 15, 2025, via videoconference. The meeting was attended by all members, and the agenda included the approval of a Management Proposal to call an Extraordinary General Meeting on October 16, 2025. The purpose of the meeting is to amend the Company's Bylaws to adapt to CMN Resolution No. 4,910/21, increase the maximum number of Board members from 12 to 15, update the name of the securities market management entity, consolidate the Bylaws, fix the number of Board members, elect one new Board member, and confirm the Board's composition. The resolutions were unanimously approved.