The operation of a general heating, ventilation, air conditioning and sanitary company; the marketing of renewable energy installations, in particular heat pumps and thermodynamic tanks; the provision of services for the installation, renovation and maintenance of these installations. Furthermore, it may carry out, either on its own account or on behalf of third parties, all financial, commercial, movable or immovable transactions directly or indirectly related to its corporate purpose and may be interested, in any form, in all similar companies, in particular by taking a stake in similar companies. The company may also establish branches and subsidiaries in Switzerland and abroad.