KWH Group

KWH Group is one of Finland's leading companies in plastics, abrasives and logistics services. It is headquartered in Vaasa, Finland.

From a modest start in the timber industry, by 1939 it was the biggest timber exporter in Finland, accounting for 26% of the country’s total lumber exports and some 20% of pulpwood exports. The company was the world's largest fox and mink fur producer in the 1960s and 1970s, producing approximately 10% of all Finnish mink furs, equivalent to 2% of world production.

After expanding into plastics production in the 1950s, the company was the first in Finland to manufacture expanded polystyrene sheets, and its brand name Styrox became synonymous with all such products in Finland. Establishing a niche expertise in plastic pipe manufacturing, the company was the first in the world to manufacture a 600 mm diameter pipe in 1964, thereby gaining international recognition.

Today, the KWH Pipe unit is one of few companies in the world with ability to manufacture PEH pipes with a diameter up to 3500 mm and larger, with their structured profile wall Weholite, specially made for marine applications, while the KWH Mirka unit is probably the fourth largest manufacturer in the world in volume terms in the "flexible abrasives materials" industry.