Norske Skog Union
Norske Skog Union was a historic integrated pulp, cellulose and paper operation in Skien, Norway, ultimately closed in 2006.
Last updated August 26, 2026
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Overview
Norske Skog Union, historically known as Union Bruk and Union, was a major Norwegian wood-processing and paper-manufacturing enterprise based at Damfoss on the Skien River in Skien. Established in 1873 by the Norwegian-British engineer Benjamin Sewell and the Norwegian engineer Halvor Emil Heyerdahl, it was founded during the rapid expansion of industrial wood processing in Norway. The founders sought to build an integrated enterprise that could transform timber into wood pulp, cellulose and paper within one industrial group. The original operation combined a wood-grinding mill and a paper factory, with a sulfite cellulose plant added later. Its early years were difficult: the first paper machinery was unreliable, the pulp market weakened, and the company incurred substantial losses. After a major fire in 1881, Union used insurance proceeds to rebuild its grinding facilities and shifted strategic emphasis toward sulfite cellulose. The new cellulose plant began operating in 1887, creating a more commercially viable foundation. Paper production resumed in a limited form later in the century. Union expanded through mergers, acquisitions and infrastructure investment. Its 1891 combination with Løveid Fabrikker connected it with the large Skotfoss operation, which included sawmilling, pulp grinding, paper production and power generation. Around the turn of the twentieth century, Union developed an international sales organization focused particularly on Britain and became one of Norway's most important paper exporters. It also acquired or controlled numerous wood-processing companies in the Skien, Drammen, Lågen and Glomma districts, while purchasing forests and securing timber supplies to support its growing industrial system. The enterprise reached a position of exceptional importance before the First World War, but the interwar period brought severe difficulties. Falling prices, foreign competition, high interest costs, labor disputes and unsuccessful investments in foreign forestry and paper projects forced debt restructurings in 1921 and 1934. Union was involved in the 1931 Menstad conflict, when the use of contract labor during a lockout provoked demonstrations and violent confrontation in the Skien area. Modernization began in the mid-1930s, but the Second World War again disrupted production and exports, leaving the group in a precarious financial position in 1945. After the war, Union concentrated activity in Skien and progressively integrated Union Bruk with neighboring Klosterfossen and Skiens Papirfabrik. A major modernization completed in 1958 installed a large newsprint machine and upgraded pulp and grinding capacity. Further expansion between 1975 and 1979 substantially increased newsprint production. By the late twentieth century the Skien operation was principally associated with newsprint and paper used for paperback books, and it was described as Norway's fourth-largest paper producer. Norske Skogindustrier, which had been the principal shareholder since 1985, took over Union in 1999. The mill later faced the structural problems affecting the European paper industry, including declining demand, excess capacity and pressure to reduce production costs. Norske Skog announced the closure of the Skien factory, and the plant ceased operations in 2006 following strong opposition from employees, trade unions and the local community. The closure ended more than 130 years of industrial paper production at the site.
History
Union was established in 1873 at Damfoss in Skien by Benjamin Sewell and Halvor Emil Heyerdahl. The founders acquired a wood-grinding mill, a nearby sawmill and associated land and water rights, then organized a joint-stock company with investors from Norway and abroad. The initial plan was to combine timber processing, pulp production and paper manufacturing. A paper machine was ordered from Belgium, and the company exported wood pulp to England in its first year, but technical problems, an unfavorable pulp market and heavy early losses threatened the venture. Production was redirected toward printing paper, and in 1878 Union began supplying Norwegian newspapers. A fire destroyed the works in 1881. Insurance compensation allowed rapid reconstruction of the grinding facilities, but Sewell chose not to immediately rebuild the paper factory. Instead, Union invested in a sulfite cellulose plant, which entered service in 1887 and became the economic foundation of the business. The 1891 merger with Løveid Fabrikker brought the Skotfoss operation into Union's sphere. Skotfoss possessed substantial paper, pulp and power facilities and was much larger than the original Union works. Union consequently developed from a local mill into a diversified industrial group. Under managing director Gustav Carl Fangel Smidth and chairman Christian Christophersen, the company built a strong sales structure, including Union Paper Agency Ltd., with particular emphasis on the British market. Around 1900 Union represented a large share of Norway's paper exports. In the years before and during the First World War it acquired numerous mills and paper companies in southeastern Norway, including businesses in the Skien, Drammen, Lågen and Glomma watercourses. These transactions provided production capacity, hydroelectric resources, transport connections and access to timber. The company also acquired substantial forest holdings and participated in water and canal development. The expansion left Union exposed when the postwar market deteriorated. During the 1920s and 1930s, pulp and paper prices fell, international competition intensified and the company suffered from high debt, labor conflict and unsuccessful foreign investments. Debt restructurings occurred in 1921 and 1934. The 1931 lockout and use of contract workers led to the Menstad conflict, one of the most prominent labor confrontations in interwar Norway. Union began a broad modernization program in 1935, but wartime export disruption and production stoppages again brought the group close to collapse. Postwar refinancing and changes in ownership followed, with a related dispute not finally settled until 1960. After 1945, operations were increasingly concentrated and coordinated in Skien. Union Bruk, Klosterfossen and Skiens Papirfabrik shared facilities and were progressively managed as one complex. A major modernization completed in 1958 introduced a large paper machine, a new grinding mill and improvements enabling the cellulose plant to process pine. The project shifted the site toward large-scale newsprint and related paper production. Expansion during 1975–1979 further increased newsprint capacity. Norske Skogindustrier became the principal shareholder in 1985 and acquired Union outright in 1999. The Skien mill later became difficult to operate economically as newspaper circulation and demand for newsprint weakened, while European producers faced excess capacity and cost competition. Norske Skog closed the factory in 2006. The decision generated large protests involving the local community, employees and trade unions, but the closure was implemented and Union ceased to function as a producing mill.
- 2006
Skien mill closes
[1]The Union factory ceases production following long-term market and cost pressures and strong local opposition.
- 1999
Norske Skog takeover
[1]Norske Skogindustrier takes full control of Union.
- 1985
Norske Skog becomes principal shareholder
[1]Norske Skogindustrier becomes Union's main shareholder.
- 1975
Newsprint expansion begins
[1]A multi-year investment program substantially expands newsprint capacity.
- 1958
Major postwar modernization
[1]A new large paper machine and upgraded grinding and cellulose facilities reposition the Skien complex for newsprint production.
- 1931
Menstad conflict
[1]A labor dispute involving contract workers during a lockout leads to major demonstrations near the company's operations.
- 1906
Klosterfossen expansion
[1]Union helps establish Klosterfossen and soon obtains majority control.
- 1891
Løveid Fabrikker merger
[1]Union is combined with Løveid Fabrikker, linking it to the large Skotfoss paper operation.
- 1887
Sulfite cellulose plant opens
[1]A new cellulose facility begins production and becomes central to Union's growth.
- 1881
Factory fire
[1]A fire destroys the works; insurance proceeds support reconstruction and a strategic move toward cellulose production.
Products and positioning
A historically integrated Norwegian forest-products enterprise spanning timber processing, pulp, cellulose, paper manufacturing, power development and industrial ownership.
Pulp · 1873
Wood pulp
Wood pulp was part of Union's original production chain and was exported from the first year of operation. It supplied downstream paper manufacturing within the Union group and external customers.
Cellulose · 1887
Sulfite cellulose
Union's sulfite cellulose operation opened in 1887 after the company rebuilt following the 1881 fire. Cellulose became a principal economic foundation and was later modernized to process pine as well as other timber inputs.
Printing paper · 1958
Newsprint
Newsprint became the core product of the modern Skien complex. The 1958 modernization installed a large machine designed for newsprint, and later expansion significantly increased output before the mill's 2006 closure.
Packaging paper
Wrapping paper and paperboard
Union also produced wrapping paper and board, including output used for the group's own packaging requirements. These grades formed part of the broader product mix before the site concentrated more heavily on newsprint.
Book paper
Paperback-book paper
Paper suitable for paperback books was among the products associated with the later Norske Skog Union operation, alongside its principal newsprint business.
Controversies
Brand decisions
2006
Close the Skien millStrategyBackground
Declining demand, industry overcapacity and cost pressures undermined the mill's long-term viability.
Action taken
Norske Skog shut the Union factory despite strong protests from employees, trade unions and the local community.
Aftermath
Production ended and the historic Union paper operation became defunct.
1999
Complete takeover by Norske SkogM&ABackground
Norske Skogindustrier had been Union's principal shareholder since 1985.
Action taken
Norske Skogindustrier acquired full control of the Union operation.
Aftermath
Union operated as a Norske Skog paper site until its closure in 2006.
1958
Install a large modern newsprint machineGeneration changeBackground
Postwar industrial competition required greater scale and more efficient production in the Skien complex.
Action taken
Union commissioned a new large paper machine and upgraded its grinding and cellulose facilities.
Aftermath
The operation became substantially more focused on large-scale newsprint production.
1881
Shift investment from paper toward celluloseStrategyBackground
After the factory fire and disappointing early paper operations, Union reassessed how to use its insurance compensation and industrial capabilities.
Action taken
The company rebuilt the grinding mill and prioritized a large sulfite cellulose factory rather than immediately reconstructing the paper factory.
Aftermath
The cellulose plant opened in 1887 and provided a stronger commercial base for subsequent expansion.
Recent events
- 2006
Union Bruk closes after more than a century of production[1]
Other
The Norske Skog-owned paper mill in Skien ceased operations amid declining paper demand, cost pressure and substantial local and union opposition.
- 1999
Norske Skog takes over Union[1]
M&A
Norske Skogindustrier, already the principal shareholder, completed its takeover of the Union operation.
Sources1 sources
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