The Dutch chemical industry is the fourth largest in Europe and tenth in the world, having a turnover of over 50 billion euros. Characterised by a central position in the European market and by the presence of highly integrated clusters such as the Port of Rotterdam and the Chemelot industrial park in Limburg, The Netherlands hosts some of the biggest producers of polyethylene (PE) and polypropylene (PP), the two most common plastic polymers worldwide. Lightweight, cheap, and reliable, these two polyolefins compose about half of the European demand for plastic products, especially for packaging, agriculture, construction, automotive, and household objects.