The price rise is a result of the inflationary environment for multiple raw materials used by the Protective Solutions business of Sonoco. The cost of polystyrene, which is the key raw material in Sonoco's EPS products, is significantly affected by the raised prices of the Styrene monomer. An increase in costs can adversely affect Sonoco's business and financial results; while the ability to pass them on to customers by raising prices will improve productivity.