Not only rubber

 
Oils are used in rubber compounds as the plasticisers, i.e., the oils have an impact on the grip of a tyre, among other things. There may be up to twenty per cent of oils in a rubber compound. In addition to low-aromatic mineral oils, Nokian Tyres uses only vegetable-based oils in its products. Thus, no oils classified as hazardous are used.
In addition to the rubber compounds, we use steel and textiles as the reinforcing materials when manufacturing tyres. Small amounts of various chemicals, such as carbon black and sulphur, are used when manufacturing rubber compounds. We purchase our raw materials from globally well-known and reliable suppliers. In 2005, Nokian Tyres was the first tyre manufacturer to completely eliminate high-aromatic, or HA, oils from its production processes. Furthermore, we do not use any carcinogenic chemicals or chemicals classified as toxic (T) in our production processes.