AES Gener S.A. Formerly known as Gener SA. The Group's principal activities are the generation, transmission and distribution of electrical energy; extraction and trading of coal; exploration, extraction, transportation and distribution of natural gas; exploration of oil; and provision of services for the operation and maintenance of thermal generating plants. Chilean power accounted for 70% of 2001 revenues; international power and new business, 21%; infrastructure and fuels, 8%; engineering and services, nominal; and other, 1%.