Purchase, sale, financing, investment, development, guarantee, import and export of technologies, equipment, systems, energy, electrical, electronic, mechanical, hydraulic, pneumatic, laboratory, construction materials, chemicals, consumables, computer programs and accessories in the fields of energy efficiency, renewable energy and sustainable development, as well as the provision of all types of services, engineering and technical assistance in the fields of energy efficiency, renewable energy and sustainable development (cf. statutes for full purpose).