Riepu ražošanā izejvielu izmaksas veido aptuveni 80%, no kurām lielāko daļu maksā dabīgais kaučuks, kas veido 41,6%, sintētiskais kaučuks veido 11,8%, tērauda kords veido 16,0%, bet ogle - 8,3%, ķīmiskā. palīgmateriāli veidoja 9,6%, bet citi izdevumi – 12,7%.
Tire upstream raw materials mainly include natural rubber, synthetic rubber, steel cord materials, carbon black, rubber additives and other industries. In tire production, raw material costs account for about 80%, of which natural rubber costs the largest proportion, accounting for 41.6%, synthetic rubber accounting for 11.8%, steel cord accounting for 16.0%, and carbon black accounting for 8.3 %, chemical auxiliary materials accounted for 9.6%, and other expenses accounted for 12.7%. It can be seen that natural rubber and synthetic rubber account for nearly 60% of tire costs, and changes in rubber prices are closely related to tires.