Ortviken’s industrial operations based on forestry began in the early 1800s when a timber yard was set up at the site. Logs were hewn into square-section beams and then used as pit props.
1862: Wholesaler Forssell builds a steam-powered sawmill at Killingholmen.
1893: Ortviken’s steam sawmill is taken over by Skönviks AB, the district’s largest sawmill company.
1902: Sawmill production ceases.
1906: Ortviken’s sulphite plant begins construction, mill starts operating 1908.
1929: Skönviks AB becomes part of SCA, Svenska Cellulosa Aktiebolaget.
1940: Alcohol-driven engines and fodder pulp produced at Ortviken during the war.
1955: SCA decides to erect a paper mill for newsprint at Ortviken with two paper machines.
1958: Ortviken’s sulphite plant changes name to Ortviken’s paper mill. PM1 starts operations to manufacture newsprint.
1959: PM 2 starts operations.
1965: SCA decides to build a new paper machine at Ortviken.
1967: PM 4 starts operations. Ortviken now regarded as a major newsprint producer with a total capacity of 340,000 tons per year.
1973: A plant for producing thermomechanical pulp (TMP) starts operations. Ortviken is first in the world to use TMP in producing newsprint.
1984: TMP production capacity is expanded and the sulphite plant closed. SCA decides to build a fourth paper machine at Ortviken.
1985: PM 5 starts operations.
1990: PM 1 replaced with LWC 1, a paper machine for manufacturing lightweight coated paper, so-called LWC paper. Ortviken becomes first in Sweden to produce LWC paper.
1996: PM 4 replaced with LWC 4, another LWC paper machine.
1999: New refining and bleaching system is introduced to produce pulp for the manufacture of low weight LWC paper.
2000: Ortviken receives its FSC chain-of-custody certificate. SCA is first in the world to offer FSC-certified publication papers.
2001: New refiners for TMP production.
2002: LWC 1 and LWC 4 upgraded to increase and improve production.
2003: Construction of a new bleach plant has commenced to enable production of improved newsprint with higher brightness and better printing properties. Ortviken now has an annual production capacity of 800,000 tons.
2004: Extension of effluent treatment plant. New bleach plant for Newsprint line.
2006: The annual production capacity increases to 837,000 tons.
2009: New TMP (Thermo Mechanical Pulp) plant with an increased capacity of 440-600 tonnes pulp per day.