ORLEN Unipetrol Group announces that, as of December 1, 2025, Mirosław Kastelik has been appointed to its Board of Directors, replacing Zdeněk Jíra, who has left the Group. In this role, which he previously held between 2013 and 2018, Mirosław Kastelik will be responsible for the financial management of the entire Group.
Mirosław Kastelik brings over thirty years of experience in finance and general management. Throughout his career, he has held senior leadership positions in companies operating across the automotive, chemical, and FMCG sectors.
From 2019 to 2025, Mirosław worked for Boryszew S.A., where he served as the CEO of the Maflow Group — a global manufacturer of automotive components. Between 2013 and 2018, Mirosław was part of the ORLEN Unipetrol Group as a Board Member responsible for Finance.
“ORLEN Unipetrol is a strong group playing a key role in industry and energy in the Czech and Central European markets. I look forward to supporting a strategy that combines financial stability with investments in innovation and sustainability, contributing to the further development of the entire Group,” says Mirosław Kastelik, the new Board Member of ORLEN Unipetrol Group responsible for Finance.
Mirosław Kastelik graduated from Cracow University of Economics and earned an Executive MBA from the University of Illinois at Urbana-Champaign. He holds a certificate of Polish Public Accountant.

The ORLEN Unipetrol Group is the largest refining and petrochemical company in the Czech Republic. It focuses on crude oil processing and the production, distribution and sale of vehicle fuels and petrochemical products – particularly plastics and fertilisers. It belongs among the key players on the Czech and Central European markets in all these areas. The ORLEN Unipetrol Group encompasses refineries and production plants in Litvínov and Kralupy nad Vltavou, Paramo in Pardubice, Spolana in Neratovice, REMAQ in Otrokovice and research centre in Brno. ORLEN Unipetrol also includes the ORLEN network of petrol stations in the Czech Republic, Slovakia and Hungary. ORLEN Unipetrol is one of the largest companies in the Czech Republic in terms of turnover. It employs over 5,000 people. ORLEN Unipetrol is also a socially responsible company, particularly in the areas of supporting sustainable development, education, local communities and the environment. Its quality employee care is attested to by the prestigious Top Employer certificate which the Group received in 2023 and 2024 and by a host of national accolades. In 2005, ORLEN Unipetrol became part of the ORLEN Group, the largest energy company in Central Europe
Contact details: Pavel Kaidl, spokesperson, +420 736 502 520, email: pavel.kaidl@orlenunipetrol.cz