The company's purpose is to provide installation and dismantling services for ventilation systems. Furthermore, the company's purpose is to engage in all activities in the field of construction. The company may establish branches and subsidiaries and may participate in other companies, both in Switzerland and abroad, and in general, may engage in any activity directly or indirectly related to its purpose. The company may acquire, hold and dispose of real estate, both in Switzerland and abroad. It may carry out, either on its own account or on behalf of third parties, all financial transactions as well as provide guarantees or securities for subsidiaries or third parties.