The registration, evaluation and authorisation of chemical substances in the context of the European regulation called REACh influence the profit of the chemical industry. If the chemical enterprises want to keep their competitiveness and the availability of products in the Europeanmarket they have to pursue a REACh-strategy. By using a value based portfoliomanagement they are able to analyse their portfolio, to identify profitable and non-profitable strategic business units (SBUs) and to find adequate strategies for each of them.