The company Stenko d.o.o., then still operating as Stenko Jože s.p., was established in 1982. Initially, the company was involved in the collection and cleaning of waste materials. Initially, the company collected PVC reels from specialized engineering companies. We manually cleaned the PVC handles and then sold them for filling ibotol containers. The demand for this type of packaging was significant, leading us to organize the purchase of these handles from all hemodialysis centers in the former Yugoslavia.