BFT INTERNATIONAL: Mr. Esper, Xella is the largest autoclaved aerated concrete producer in the world. What‘s the annual AAC output of the Xella operations?
O.E.: Our 43 Ytong plants will produce more than 7.5 million m³ of aerated concrete this year. But we had previously achieved a global output of over 10 million m³ of Ytong products used in buildings in periods of high construction activity when considering our minority shareholdings and licensees.
BFT INTERNATIONAL: Which of your production sites are most productive according to your internal benchmark?
O.E.: The productivity of a plant...