Kompostwerke Rhein-Sieg GmbH & Co.KG (KRS) is part of the RSAG Group, a municipal waste disposal company.
In addition to other activities RSAG collects biowaste in one of the largest districts of Germany, the Rhein-Sieg-Kreis. KRS operates three compost plants with a treatment capacity of more than 117.800 tonnes of biological waste from the Rhein-Sieg-Kreis and the neighboring city of Bonn per year. Green waste and separately collected biowaste are treated and composted in one open windrow composting system and various enclosed composting plant systems. One of the composting plants is currently demolished and will be replaced by a modern digestion plant with a connecting tunnel composting process. The new plant will be operational in early 2023.
KRS is member of the German quality assurance organisation Bundesgütegemeinschaft Kompost e.V. (BGK). The quality assured composts are used as organic fertilisers and soil improvers for agriculture, landscaping, professional horticulture, soil manufacture and hobby gardening.