At the Munaistenmetsä biogas plant in Uusikaupunki, Biolinja Oy Uusikaupunki processes organic waste from agriculture, industry, and communities. In addition to biogas, the plant produces solid and liquid plant nutrients.
The biogas plant operates as part of a sustainable production model for fish farming and greenhouse cultivation. The complex also includes a bio-oil production plant located next to the biogas plant.