In recent years the markets for synthetic rubber feedstocks have experienced significant fundamental change with associated supply and price volatility. Fundamental shifts in the ethylene markets ripple well down the value chain as coproduct production decreases. These changes in the overall petrochemical markets are outside the sphere of influence of the synthetic rubber producer, yet they play a major factor in the success of their business. This paper will examine the macro trends facing the petrochemical industry with the intent of clarifying current and near term future trends that will certainly have a major impact on the synthetic rubber markets. Presented by Bill Hyde, Senior Director Olefins and Elastomers, IHS Chemical.