The stairwell running between the office floors on the south side of the tower houses a winter garden and there is an auditorium at the base of the tower. Permasteelisa Group designed and installed approximately 18,000 sqm (193,700 sq ft) of double glazing skin, 32,000 sqm (344,500 sq ft) of curtain wall and metal components. The skyscraper also uses 1,900 sqm (20,500 sq ft) of photovoltaic panels installed on the south wall of the facility. Furthermore, the air conditioning system takes advantage of the energy exchange with the ground water, and thus does not produce any harmful atmospheric emissions.