Preiskava je pokazala, da je bistveno povišanje proizvodnih stroškov povezano z nihanjem cen nekaterih surovin, kot sta paraksilen in etilenglikol, katerih cene so neposredno odvisne od cene nafte.
The investigation showed that the significant increase in cost of production is linked to the fluctuation of the price of certain raw materials, such as paraxylene and ethylene glycol, which were directly influenced by the price of oil.