Explore details about location Copec. Copec is a location situated within the Chillán Viejo alongside other areas such as Juan Martínez de Rozas, Autopista del Itata, Virrey Don Ambrosio. Additionally, some smaller parts of Copec include specific areas like Shell, Ruta 5 Sur, Cruce Longitudinal (Nebuco) - Los Colihues - Huape adding to the diversity of its landscape.