As a part of the sustainable development strategy, ROS-SWEET company co-funded the edition of basketball team PTG Sokół Łańcut calendar. Calendars with photos of PTG Sokół Łańcut team are published every year in approximately 500 - 1000 copies.

Materials are distributed by the official sponsors of PTG Sokół Łańcut. They are also sold to fans of a team or given as a form of gift during various club competitions. Income from the sale of calendars is intended for financing the activities of the team.