The above chart exhibits the price development of raw materials which we have summarised on the basis of our practical experience. It is not the individual values which are essential, but the development.
On account of the raw material chain and of the extremely high material portion, the oil and the subsequent processing steps cause an elevated fluctuation range almost occurring without any preliminary lead time giving us the chance of modifications.
Developments in oil-producing and upcoming emerging nations are followed by increased demands, but in equal measure, by uncertainties, crises and conflicts; national and European regulations such as packaging regulations, consequences of anti-dumping procedures for the protection of national interests.
CLIMATIC AND METEOROLOGICAL
The most important consumer of PET is the fibre-producing industry which uses cotton as one of their main raw materials, at the same time. Failures of crops are additionally compensated by using PET. Thus, an extreme scarcity of PET resin arose in spring-time 2011.
Another example were the impacts of the hurricane Katrina on the oil production in autumn 2005 and, for this reason, on the whole petrochemistry.
Seasonal fluctuations of demand directly depend on the weather (cold or hot summer-times) since thereby the consumption of beverages (in PET bottles) varies.