The 24 hours strike is a protest connected with UPM's plans to sell Stracel mill. UPM announced the plans to sell the mill in August last year. No further details have been published to date regarding the divestment.The Stracel mill, located near Strassbourg in northeastern France, has approximately 280 employees and a capacity of some 270,000 tons of printing paper. The mill, established in the 1930s by the Swiss Thiel Group, was acquired by UPM in 1988.