purchase, sale, rental, transformation and renovation of real estate, participation in all real estate transactions; the company may carry out, either on its own account or on behalf of third parties, any other activities of any nature, in particular financial, commercial, industrial, movable and immovable, convergent with its main purpose, with the exception of properties subject to the LFAIE, in Switzerland and abroad, directly or indirectly related to its main purpose (cf. statutes for full purpose)