Since the transformation of public companies the effectiveness of service has improved and waste collection has started to expand to rural areas. For example, A.S.A. EKO d.o.o. Porr Umwelttechnik GmbH’s Serbian subsidiary PWW is currently the largest private waste management provider in Serbia and collects the MSW of around 600,000 residents at present. It started its activities in Serbia in 2007 and is serving Leskovac and Jagodina.