The direct and/or indirect operation, through participation in companies, entities or enterprises, of activities in the field of geothermal energy, renewable energy sources and energy in general, in the water sector, including derivation, potabilization, purification, distribution, and reuse of water, in the sector of environmental protection and waste treatment and disposal. The direct and/or indirect operation, through participation in companies or enterprises, in the field of hydrocarbons and natural gases, the construction and operation of pipelines for the transportation of the same, the processing, transformation, storage, utilization and trade of hydrocarbons and natural gases, as well as any other economic activity that is connected by a link of instrumentality, accessory or complementarity with the previously mentioned activities.