UPM's Caledonian mill is situated in Irvine on the West Coast of Scotland, approximately 50 kilometres southwest of Glasgow.
In production since April 1989, the Caledonian mill is capable of producing 290,000 tonnes of lightweight coated paper (LWC) for printing magazines, catalogues, brochures.
The mill has a biomass Combined Heat and Power (CHP) plant, a single paper machine line, a debarking plant, a pressurised groundwood mechanical pulp mill and a primary effluent treatment plant. Effluent is then treated further in the neighbouring Municipal Waste Water Treatment Plant operated by Scottish Water.
UPM Caledonian paper mill