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Our history

From a glass-fibre workshop in Valmiera to the factory by the port of Ventspils. Choose a decade.

  • 1993manufacturing in Latvia
  • 8 mlargest diameter
  • 2factories, Valmiera and Ventspils
  • 3companies with one origin

1960

  1. 1960-talet Founding Demo example

    The first plastic tanks in Sweden

    The Andrén family starts making reinforced plastic tanks in a small workshop in western Sweden. The customers are farms and dairies.

    The group

1970

  1. 1970-talet New product Demo example

    The chemical industry discovers glass fibre

    Pulp mills and chemical plants begin replacing rusting steel tanks with glass fibre. The first acid tanks are delivered on the west coast.

    The group

1980

  1. 1982 New factory

    Production in Poland

    Production of glass-fibre tanks starts in Poland as a step in the ongoing development.

    The group

1990

  1. 1993 Founding

    Valmiera-Andren is founded

    Production moves to Latvia. The company starts in the glass-fibre workshop at the Valmiera Glass Fibre Plant, jointly owned by Latvian individuals and Swedish Sten Andren AB.

    Welna-Andrén Latvia
  2. 1996 Ownership

    NEFCO becomes a part-owner

    The Nordic Environment Finance Corporation, NEFCO, invests in the company and remains a part-owner until 2006.

    Welna-Andrén Latvia
  3. 1998 New product

    The first scrubbers

    Valmiera-Andren starts building scrubbers for flue-gas cleaning. Waste incineration around the Baltic Sea becomes the largest customer group.

    Welna-Andrén Latvia
  4. 1998 Founding

    Valtank starts with rail tank cars

    Valtank is founded on the same site in Valmiera. The first job is repairing rail fuel tank cars and coating them with glass fibre. Soon it renovates underground tanks without digging them up.

    Valtank

2000

  1. 2000 New product

    Sand silos

    Valtank starts making silos, first to order for a German company, from 2 to 100 m³.

    Valtank
  2. 2009 New factory

    The factory at the port of Ventspils

    Ventspils-Andren opens in the free port industrial area. With vertical winding up to DN 8000 and an ice-free port outside the door, the largest vessels can be shipped directly.

    Welna-Andrén Latvia
    Read the story
  3. 2009 Technology

    Certified to EN 12285

    Kiwa issues the first factory production control certificates for Valtank’s underground and aboveground tanks.

    Valtank

2020

  1. 2025 Ownership

    Welna-Andrén Sweden

    The Swedish company takes its current name and brings together sales of the group’s glass fibre, and in future steel as well.

    Welna-Andrén Sweden