Addleshaw Goddard advises ORLEN S.A. on acquisition of S54 sp. z o.o. from Synthos S.A.

Addleshaw Goddard advised ORLEN S.A. on the acquisition of 100% of the shares in S54 sp. z o.o. from Synthos S.A.; EY acted as financial and tax advisor to ORLEN S.A., and Rymarz Zdort Maruta advised the seller, Synthos S.A. The transaction involved ORLEN S.A.’s purchase of S54 sp. z o.o., a company that is currently constructing a butadiene extraction unit at the production plant in Płock, Poland. The new facility will produce butadiene, a key raw material for synthetic rubber and other chemical products, and will supply additional by-products to support ORLEN’s growth in the sector. The agreement, valued at approximately PLN 692 million (EUR 163 million), was signed and closed on 18 December 2025. The deal required navigating a complex contractual framework among ORLEN, Synthos and S54, including the renegotiation of supply and offtake agreements to align operational and commercial arrangements following the acquisition. Addleshaw Goddard represented client(s) ORLEN S.A. with a team composed by: Adam Usiądek and Krzysztof Górny (transaction leads), supervised by Marcin Schulz and Cezary Wiśniewski, with support from Jakub Kurach, Katarzyna Magnuska, Barbara Wanat, Piotr Jelito, Jakub Dąbrowski, Aleksandra Czubek, Szymon Sieniewicz, Wojciech Podlasin, Jakub Gerula and Łukasz Burakowski. EY acted as financial and tax advisor to ORLEN S.A. Rymarz Zdort Maruta advised Synthos S.A. on the sale of S54 sp. z o.o. We congratulate ORLEN S.A. on this strategic investment and thank all parties for their collaboration in delivering the transaction.

Addleshaw Goddard advises ORLEN S.A. on acquisition of S54 sp. z o.o. from Synthos S.A.

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