The Gåsgruvan plant dates all the way back to when limestone quarrying began there in 1852. In the mid-1950s, the facility gained two horizontal rotary kilns for the production of quicklime.
SMA Mineral acquired Gåsgruvan in 1980 from Uddeholm. Quicklime was produced at Gåsgruvan until 1990 and quarrying took place at two levels underground.
Today the plant quarries around 225,000 tonnes of limestone a year in an open pit. The limestone is crushed underground and transported to the plant at surface level via a long conveyor. The rock is processed at the plant through crushing, milling and screening. The final product is stored in silos or bulk bags and delivered to customers in the construction, asphalt production, agriculture and lake liming sectors.