• 1942

    General meeting to establish Satakunnan Peruna Oy potato starch factory was held in Hämeenlinna, Finland, on 15.1.1942. The factory was built in Kokemäki. During the first fall about 2 500 tonnes of potatoes were processed and 500 tonnes of starch accumulated.

  • 1975

    Mid 1970’s began the use of domestic potato starch in paper industry. Growing demand increased significantly the amount of manufactured potato starch.

  • 1984

    Raision Tehtaat bought 2.10.1984 then Hämeen Peruna Oy.

  • 1987

    Significant investment was made in the sewage treatment plant. 

  • 1999

    Raision Yhtymä founded Finnamyl Oy which consists of Kokemäki factory operations and majority of the shares of Lapuan Peruna Oy starch factory.

  • 2000

    Manufacturing of organic potato starch began. 

  • 2010

    After various holdings Finnamyl Oy moved back to Finnish ownership on 30.9.2010. The owners are contract farmers, top management and some partners.

  • 2015

    The most expensive investment in the companys’ history, protein separation factory, was made.

  • 2016

    Liquid fertilizer, BioKali, was lauched.

  • 2018

    Export exceeded first time 6 milj. euros.

  • 2022

    Finnamyl becomes part of Chemigate / Berner Group

Ownership from Seppälä family business to contract farmers and Berner family business

Finnamyl Oy and its subsidiary Lapuan Peruna Oy have been manufactoring potato starch, i.e. potato flour, already for decades. Production began in Kokemäki already in 1942 under the name Satakunnan Peruna owned by the Seppälä family business. Lapuan Peruna Oy started in Lapua in 1952. Factories were established in these places precisely because of the abundance of soil suitable for growing potatoes and farmers who are enthusiastic about growing potatoes in the environment.

Before establishing factories potato starch was manufactured at home and used for thickening and baking. Through the industrial manufacturing potato starch became available as a raw material for food industry. Decades later, in 1970’s, potato starch was utilized in paper industry to improve the properties of the paper. Today, more than half of the starch produced by Finnamyl Oy is used for food and the rest is sold to be modified for the paper industry.


Finnamyl got a new ownership base in June 2022, when Chemigate, part of the Berner Group, acquired 47% of Finnamyl Oy's shares and at the same time a majority of votes. The slightly bigger half is owned by contract farmers. Between Seppälä family ownership and the current ownership, the industry has been owned by Raisio, Ciba Specialty Chemicals, BASF and the executive management.

Now the company is proud to have local ownership and big part of potato supplying farmers involved in company's ownership. Manufacturing of Sago Potato Pearls started also in 1940’s. In Kokemäki manufacturing of Sagos began in early 1990’s.


Starch production from organic potatoes began in 1999. Contract farming of organic starch potatoes has grown strongly and Finnamyl Oy is today one of the world’s biggest manufacturers of organic potato starch. The majority of organic potato starch is exported to many continents.

For decades only starch was recovered from potatoes. Other fractions, such as fiber and from potato cells released liquid, so called fruit juice, had only limited value. Now it is possible to utilize potato much better since in 2015 potato protein production was initiated in the Finnamyl factory in Kokemäki. Potato protein has become an important part of business at Finnamyl. Development of side stream utilization is still continuing. Finnamyl Oy has developed from a potato starch factory to a whole potato utilizing bio refinery.

We act responsibly in the society as well as in using nature resources.


Food safety is an important part of production and supply chain in our factory. High and consistent quality of our products, fast and accurate deliveries and knowledgeable customer service will ensure that customers’ expectations are met. 

We have ISO 9001:2015 quality system, as well as Food safety certificate FSSC 22000. We have also Halal and Kosher cerificates.

We act responsibly in the society as well as in using nature resources. In product and process development, we strive to develop products and methods which are safe, based on renewable natural resources and promote recycling. We will do everything we can to reduce our environmental impact: reduce amount of waste and emissions and intensify utilization of raw materials and other resources.