SigmaRoc was created in 2016 and focuses on investing, improving and integrating companies in the European construction materials sector. Nordkalk was established in 1898 as a limestone developer in Finland and has expanded to become a leading supplier of limestone-based solutions for agricultural, construction and chemical industries. The enlarged quarried materials group is operating across six platforms, with 37 quarries and 76 operations across 13 countries in Northern Europe, supplying a range of products from aggregates to specialist materials.