Kongsberg Silver Mines
The silver mines of Kongsberg, in Buskerud county in Norway, constitute the largest mining field in Norway, with over 80 different mines. It was the largest pre-industrial working place in Norway, with over 4,000 workers at its peak in the 1770s and supplied over 10% of the gross national product of the Danish–Norwegian union during its 335-year-long history: over 450,000 man-years were expended in the production.
Mo Industrial Park
Mo Industrial Park () is one of Norways largest industrial parks, situated in the town of Mo i Rana, North Norway. The company Mo Industrial Park produces oxygen, nitrogen and compressed air, and also provides security, telephone-switchboard and mail services to the other companies in the park. The companies engage in a wide range of activities, including iron and steel production, ferro alloy production, workshop industry, service industry, research, quality and computer technology, expertise industry, and even fish farming. Total gross income is close to 4 billion NOK per year.