Appointment of a new member of the Supervisory Board of mBank S.A

Appointment of a new member of the Supervisory Board of mBank S.A The Management Board of mBank S.A. (Bank) informs that on 26 February 2026, the Supervisory Board of the Bank elected Ms. Danuta Dąbrowska as a new member of the Supervisory Board of the Bank, for the period starting from 26 February 2026. Ms Danuta Dąbrowska graduated with Master of Science degree from the University of Horticulture and Food Industry in Budapest. Since 2000 she has been a Member of Association of Chartered Certified Accountants (ACCA). She is also a graduate of advanced management programmes, such as: Advanced Strategic Management, Strategic Finance and High Performance Leadership at IMD, Switzerland and ‘Best-In-Retail’ Programme at Harvard Business School. Ms Danuta Dąbrowska has thirty-five years of professional experience in the financial, commercial and telecommunication sectors, and for more than twenty years she has held supervisory and executive positions. She has developed her career in international corporations and over the past thirteen years has focused her professional activity on serving in supervisory roles in large publicly listed companies. From 2014 until 25 February 2026 she served as a Member of the Supervisory Board of Santander Bank Polska S.A., where she held positions on the Audit Committee, Nomination Committee and Remuneration Committee, chairing the latter from 2017. Since 2019, Ms Danuta Dąbrowska has been a Member of the Supervisory Board and Chairwoman of the Audit Committee of Budimex S.A., and since 2024 she has also been a Member of the Supervisory Board of W. KRUK S.A.. Earlier in her career, she served on supervisory boards of Herkules S.A., Vistula Retail Group S.A., where she was also a member of the Audit Committee, as well as on the Audit Committee at the Polish Council of Shopping Centers. As a Vice-President and Board Member of Pandora Jewelry CEE Sp. z o.o., Panmeas Jewellery LLC and ECCO Europe East & Middle East Sp. z o.o., she was responsible among others for managing finance, building operational structures, financial strategy and business development in the Central and Eastern Europe, Middle East, and for Panmeas Jewellery LCC also Africa regions. In TP Internet (France Telecom Group) and Ericsson she held director-level positions responsible for financial departments and business control functions. She began her professional career in audit firms Arthur Andersen (currently Ernst & Young Polska) and Coopers & Lybrand (currently PwC Audyt Polska).According to the information available to the Bank's Management Board, Ms Danuta Dąbrowska does not conduct any activity competitive to the Bank, and does not participate in a company competitive to the Bank as a partner in a civil partnership, partnership, or capital company, and does not participate in a legal person competitive to the Bank as a member of its body. In accordance with the criteria used by the Bank, Ms Danuta Dąbrowska is an independent member of the Supervisory Board of the Bank. Ms Danuta Dąbrowska is not listed in the Register of Insolvent Debtors kept pursuant to the National Court Register Act.