As a member of a partnership, Anglian Water signed a contract in April 1999 to run, Esval, the first water and wastewater company to be privatised in Chile. Esval is the second largest water and wastewater supplier in Chile, serving a 1.3 million population in a region that is a major tourist destination. Anglian Water and Enersis formed a joint venture company, Aguas Puerto. In August 2000, Anglian Water agreed to buy all of it's partner's shares to become the major shareholder and operator of Esval.
Chile currently accounts for the largest investment by awg plc outside the United Kingdom.