Chemical leasing represents an innovative business model, in which chemicals are no longer simply sold to the customer to render a specific service, but made available and maintained. This way, the economic interest no longer lies in selling the chemical product, but in providing a chemical service. All the stakeholders will thus endeavour to enhance the efficiency of the various substances to a maximum. This book is based on the results of two studies facilitated by the Austrian Ministry of Environment and key players of the industry, in which the potentials for the introduction of such a business model for Austria were investigated. A classical win-win solution evolves, which spares the environment by reducing emissions, gives rise to an optimisation of company processes, both in terms of quality and quantity, and redefines the supplier - customer relationship.