June 18, 2026 - UPM today announced that it will temporarily shut down UPM Kaukas pulp mill as of August 3 for approximately six weeks. In addition, a potential temporary shutdown of the UPM Pietarsaari pulp mill is being planned for October.
In a press release, UPM said, "These shutdowns are intended to optimize production levels and wood sourcing and to ensure profitability in the current market and cost environments."
The Kaukas pulp mill is located in Lappeenranta in South East Finland. The pulp mill has the capacity to produce 700,000 tonnes per year of softwood pulp on two production lines. The mill site also consists of a paper mill (shutdown in 4Q 2025), a sawmill, a biorefinery producing wood-based diesel and UPM's research centre.
The Pietarsaari pulp mill is located in the Gulf of Bothnia in western Finland. The mill has the capacity to produce 800,000 tonnes per year of softwood and birch pulp. The mill site also houses UPM's Alholma sawmill, Alholmens Kraft power plant and UPM's wood procurement offices.
UPM Fibres consists of UPM's pulp and timber businesses as well as wood sourcing and forestry operations. UPM Pulp has three pulp mills in Finland and two pulp mills and plantation operations in Uruguay.
SOURCE: UPM