The operation of a company engaged in the installation, maintenance, conversion, repair and sale of heating, ventilation and air conditioning systems and all services in the field of secondary work, in particular sealing, flooring, wall and ceiling coverings; the company may carry out, either on its own account or on behalf of third parties, all operations - including commercial, industrial, financial, movable or immovable property transactions that are directly or indirectly related to it or promote its development, in Switzerland and abroad; the company may establish branches, subsidiaries and representative offices in Switzerland and abroad; it may grant loans to its associates, act as guarantor for loans subscribed by its associates, guarantee these loans by subscribing to other financial commitments.