Nokian Renkaat Oyj develops and manufactures premium tires for passenger cars, SUVs, commercial trucks, and heavy industrial machinery. The company operates through three primary business segments: Passenger Car Tyres, Heavy Tyres, and Vianor. Its Passenger Car Tyres division focuses on winter, summer, and all-season tires, while the Heavy Tyres segment produces specialized tires for forestry, agriculture, mining, and port machinery. The Vianor segment consists of a network of retail stores offering tire sales, storage, and vehicle maintenance services. Geographically, the company primarily serves the Nordic countries, Central Europe, and North America. Nokian Tyres is distinguished by its strong focus on winter tire technology and operates its own permanent winter tire testing facilities.