Born 1981, a graduate of the Faculty of Economic Sciences at the University of Warsaw, where he completed his studies with a specialization in international economics. In 2022, he obtained the Association of Chartered Certified Accountants (ACCA) certificate, joining the ranks of members of this prestigious organization uniting finance and accounting professionals.

His professional career to date has been connected with broadly understood operational and corporate finance, as well as organizational management. He began his career at KPMG, gaining experience in the field of advisory services. From 2006 to 2012, he worked at CEMEX, where he held positions in the concrete and aggregates divisions, supporting operations in Poland and temporarily in the Czech Republic. He was later promoted to the regional structures, where he was responsible for supporting businesses in ten countries across Central and Western Europe.

From 2012 to 2015, he worked at Levi Strauss & Co., initially providing support and later becoming responsible for financial planning and analysis in the Eastern and Southern Europe region, covering 22 countries. From 2015 to 2025, he worked at CRH Group, holding a number of financial and managerial positions in the Group’s companies in Poland. Until 2022, he was responsible for providing financial support to companies on behalf of the national headquarters.

Concurrently, from 2020 to 2023, he served as a Management Board Member of AgriForm, where he co-created a change in the business model. From 2022 to 2025, he was a Management Board Member of Ergon Polska, responsible for its efficient operations and for minimizing operational and financial risks.

In 2022, he was appointed Chief Financial Officer of Trzuskawica S.A., and later became a member of its Management Board, co-responsible for all aspects of the organization’s functioning and co-creating historic organizational changes in the company. He was directly responsible for the controlling, accounting, purchasing, performance, internal control, IT, and warehouse departments.

On August 1, 2025, he began cooperation with Mostostal Płock S.A., taking on the role of Director for Finance and Organization, and on August 11 of this year, he was appointed by the Company’s Supervisory Board to the Management Board of the Company.

In accordance with his submitted declaration, Mr. Adrian Kaczmarczyk does not engage in any activities competitive to those conducted by the Issuer, nor does he participate in any company competitive to Mostostal Płock S.A., whether as a partner in a civil law partnership, a partner in a personal partnership, or as a member of a corporate body of a capital company; he also does not participate in any other competitive legal entity as a member of its governing bodies and is not listed in the Register of Insolvent Debtors maintained pursuant to the Act on the National Court Register.