all work related to thermal and photovoltaic solar installations, MCR, electrical installations, hydraulic power plants, wind power, energy management and optimization, provision of services, studies and implementation of any project, import, purchase, sale, marketing and activities related to sheet metal work, roofing, building envelope, ventilation, waterproofing, sanitary installations, equipment, gas installations, heating, district heating, industrial piping, contracting, as well as all mobile and immobile operations that converge; the company may grant loans to partners or third parties, guarantee loans subscribed by partners or third parties, secure these loans by issuing or pledging mortgage securities or by subscribing to any other financial commitment, pledge its assets to secure any claim (cf. statutes for full purpose)