Major wineries in central Chile are investing up to US$12m each in waste treatment plants and methods to reuse by-products. Their aim is to meet or beat rising environmental standards, both at home and in ever more demanding foreign markets where ISO 14.001 standards are the norm. Santa Emiliana, Concha y Toro, Cousino Macul, Undurraga, Morande, Echeverria, Domaine Oriental and Torreon de Paredes are among the wineries participating in the effort.