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Promens was an Icelandic plastics group specializing in rigid plastics, rotational moulding, containers, tanks, and industrial components.

Last updated August 31, 2026

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Overview

Promens was an Icelandic plastics holding company whose principal activities centered on rigid plastics manufacturing and rotational moulding. The group grew out of Sæplast, a business established in Dalvík in 1984 by local investors to make insulated, double-walled containers for Iceland’s fishing and fish-processing industries. Sæplast’s products gained broad acceptance in the domestic fisheries sector and were subsequently exported to international markets, providing the foundation for a wider industrial group. The company expanded through acquisitions during the late 1990s and early 2000s. Purchases of Dyno AS facilities in Ålesund, Norway, and Saint John, Canada, in 1999, followed by Nordic Supplies Container AS in Norway in 2000, broadened the product portfolio beyond rotationally moulded tubs. The enlarged business also supplied marine floats and safety equipment. Sæplast subsequently established an Asian presence through Sæplast Asia in Hong Kong and acquired Icebox Plastico in Spain and Plasti-Ned in the Netherlands. These transactions increased the company’s international employee base and substantially changed the balance of its sales toward overseas operations and marine-related products. In 2004 Atorka Group, an Icelandic investment company, acquired a majority interest in Sæplast. The company was delisted from the Icelandic Stock Exchange, and Sæplast also acquired Tempra hf, Iceland’s largest producer of expandable polystyrene products at the time. In May 2005, Promens hf was formed to consolidate a number of Sæplast and Tempra subsidiaries in Iceland, the Netherlands, Spain, Hong Kong, the United Kingdom, India, Norway, and Canada. Promens therefore represented a corporate reorganization and expansion of the earlier Sæplast platform rather than an entirely new manufacturing business. A major step in the group’s development came in July 2005, when Promens acquired the Bonar Plastics division from Low & Bonar plc. The transaction added eleven rotational-moulding plants across Europe and North America and significantly increased Promens’s ability to supply custom-moulded components. Bonar Plastics served a broad range of industrial sectors and supplied components associated with major vehicle and equipment manufacturers, including DaimlerChrysler, Caterpillar, John Deere, Peugeot, Renault, and Volvo, according to contemporary reference material. Its activities combined contract manufacturing with proprietary products such as tubs and tanks used to store and transport chemical, pharmaceutical, and food materials. Promens operated through a geographically distributed manufacturing network. Its plastics division included facilities in Iceland, Germany, the Netherlands, Poland, France, Spain, Canada, India, and China, while the wider group was described as having 42 manufacturing sites in 19 countries and approximately 3,800 employees. The company’s activities included rotationally moulded products, rigid containers, industrial parts, marine equipment, storage and transport products, and expanded-polystyrene goods. Reference material reports total sales above EUR 611 million in 2011; this figure is retained only as a historical, time-specific measure rather than a current financial statistic. In January 2016, Promens and Sæplast were acquired by the United Kingdom-based RPC Group. The available reference material states that operations in India and China were closed after the acquisition. The later corporate status of Promens as an independent brand or legal entity is not clearly established by the supplied sources. Promens is therefore best understood as an Icelandic-origin industrial plastics group whose development was driven by international acquisitions and whose businesses ultimately entered RPC’s portfolio.

History

Promens’s history began with Sæplast, founded in Dalvík, Iceland, in 1984 by local investors. The original business manufactured insulated, double-walled containers for the fishing and fish-processing industries. Its products were adopted throughout Iceland’s fisheries sector and then exported, allowing the company to develop an international customer base. In 1993 Sæplast received the President of Iceland’s Export Award and became listed on the Icelandic Stock Exchange. International expansion accelerated in 1999 and 2000, when Sæplast acquired the Dyno AS factories in Ålesund, Norway, and Saint John, New Brunswick, Canada, followed by Nordic Supplies Container AS in Norway. The acquisitions expanded the company from tubs into marine floats and safety equipment. The business’s turnover reportedly increased substantially during this period, and overseas employment became considerably larger than employment in Iceland. Sæplast created Sæplast Asia in Hong Kong in 2001. It then acquired Icebox Plastico in Spain in 2002 and Plasti-Ned in the Netherlands in 2003. Atorka Group acquired a majority stake in Sæplast in 2004, after which the company was delisted. Sæplast also acquired Tempra hf, an Icelandic expandable-polystyrene producer. Promens hf was established in May 2005 to take over several Sæplast and Tempra subsidiaries. The new structure covered operations in Iceland, the Netherlands, Spain, Hong Kong, the United Kingdom, India, Norway, and Canada. In July of the same year, Promens purchased the Bonar Plastics division from Low & Bonar plc. This added eleven rotational-moulding plants in ten countries across Europe and North America. Bonar Plastics supplied both proprietary products and custom-moulded parts for industrial customers in sectors including automotive, construction equipment, agriculture, chemicals, pharmaceuticals, and food. The resulting group operated a broad manufacturing network. Its plastics division included facilities in Iceland, Germany, the Netherlands, Poland, France, Spain, Canada, India, and China. Reference material describes Promens as having 42 manufacturing facilities in 19 countries, about 3,800 employees, and sales exceeding EUR 611 million in 2011. Promens’s portfolio included rotationally moulded containers and tanks, marine products, custom industrial parts, and expanded-polystyrene products. In January 2016 Promens and Sæplast were acquired by RPC Group. The supplied material states that business operations in India and China were closed after the acquisition. The sources provided do not establish whether Promens continued as a standalone legal entity or brand after integration into RPC, so its present status is recorded as uncertain.

  • 2016

    Acquired by RPC Group

    [1]

    RPC Group acquires Promens and Sæplast; the supplied reference states that operations in India and China subsequently closed.

  • 2011

    Reported international scale

    [1]

    Reference material describes Promens as operating 42 manufacturing sites in 19 countries, with approximately 3,800 employees and sales above EUR 611 million.

  • 2005

    Promens hf is formed

    [1]

    Promens is created to consolidate several Sæplast and Tempra subsidiaries.

  • 2005

    Bonar Plastics division acquired

    [1]

    Promens acquires Bonar Plastics from Low & Bonar, adding manufacturing capacity and custom-moulded industrial products.

  • 2004

    Atorka Group takes majority control

    [1]

    Atorka Group acquires a majority interest in Sæplast, which is subsequently delisted; Sæplast also acquires Tempra hf.

  • 2003

    Plasti-Ned acquisition

    [1]

    Sæplast acquires Plasti-Ned in the Netherlands.

  • 2002

    Icebox Plastico acquisition

    [1]

    Sæplast acquires Icebox Plastico in Spain.

  • 2001

    Asian expansion

    [1]

    Sæplast establishes Sæplast Asia in Hong Kong.

  • 2000

    Nordic Supplies Container acquisition

    [1]

    Sæplast acquires Nordic Supplies Container AS of Norway.

  • 1999

    Acquisition of Dyno AS facilities

    [1]

    Sæplast acquires Dyno AS factories in Ålesund, Norway, and Saint John, Canada, expanding into marine products.

Products and positioning

An international business-to-business plastics manufacturer combining rotational moulding, proprietary containers, marine products, and custom industrial components.

  • Insulated plastic containers · 1984

    Sæplast containers

    Insulated, double-walled containers developed for fisheries and fish-processing operations. They formed the original product platform of Sæplast and were designed for the handling, storage, and transport of seafood and related materials.

  • Industrial plastics

    Rotationally moulded tubs and tanks

    Large rigid-plastic products made through rotational moulding for storage, handling, and transportation. The range included tubs and tanks used in industrial environments and in chemical, pharmaceutical, and food applications.

  • Marine equipment · 1999

    Marine floats and safety equipment

    Products added through Sæplast’s acquisitions of marine-related businesses, including floats and safety equipment for marine industries.

  • Contract-manufactured plastic components · 2005

    Custom-moulded industrial components

    Rotationally moulded parts produced for industrial customers and original-equipment manufacturers. The Bonar Plastics business served multiple sectors, including automotive, agricultural machinery, construction equipment, chemicals, pharmaceuticals, and food.

  • Expanded polystyrene · 2004

    Expanded-polystyrene products

    Expanded-polystyrene products associated with Tempra hf, which became part of the broader Sæplast and later Promens structure.

Brand decisions

  • 2016

    Sale to RPC GroupM&A

    Background

    Promens and the Sæplast business became part of a larger international plastics group.

    Action taken

    RPC Group acquired Promens and Sæplast.

    Aftermath

    The supplied reference material reports closure of the Indian and Chinese business operations after the acquisition; the longer-term independent status of the Promens brand is unclear.

  • 2005

    Acquisition of Bonar PlasticsM&A

    Background

    Promens sought to enlarge its rotational-moulding footprint and broaden its industrial customer base.

    Action taken

    It acquired the Bonar Plastics division from Low & Bonar plc, adding eleven plants in Europe and North America.

    Aftermath

    The transaction increased Promens’s custom-moulding capacity and added customers across a range of industrial sectors.

Sources2 sources

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