1. Jastrzębska Spółka Weglowa S.A. with the seat in Jastrzębie Zdrój
2. ArcelorMittal Poland with the seat in Katowice, the owner of the coking plant - Zakłady Koksownicze Zdzieszowice Sp. z o.o.
3. Koksownia Przyjaźń Sp. z o.o. with the seat in Dąbrowa Górnicza.

Supervisory Board of Polski Koks S.A.:

Wacław Będkowski - President of the Supervisory Board
Czesław Sikorski - Member of the Supervisory Board
Edward Szlęk - Member of the Supervisory Board
Elfryda Liberda - Member of the Supervisory Board
Rafał Rychter - Member of the Supervisory Board


POLSKI KOKS S.A. with its level of exporting coke is the largest (apart from Chinese exporters) exporter of coke in the worldwide market.
A wide range of high quality products makes the Company very attractive in the market. Good chemical and physical qualities of the coke sold by the company are mainly the effect of properties of the raw material used for its production. The coking coal supplied in 90% by Jastrzębska Spółka Weglowa S.A. meets the required standards, has high sinterability and plasticity and thus can be used for producing high quality coke.
The quality of coal is tested by the lab - Centralne Laboratorium Pomiarowo- Badawcze Sp. z o.o. in Jastrzębie Zdrój, of which POLSKI KOKS S.A. is a shareholder. The lab has the Certificate of Accreditation of the Testing Lab ISO/IEC