Construction began in January 2007 with an investment of US$ 120 million , and its inauguration was expected in December 2008 . Primary materials used include aluminum , reinforced concrete , steel , granite and glass curtain wall . Because Santiago is prone to earthquakes , the building was anchored deep with 65 concrete and steel pylons , allowing it to withstand an earthquake of 9.0 on the Richter scale . The tower did not suffer any damage from the earthquake in February 2010 , although one of the decorative fixtures in the exterior did collapse
earthquake in February 2010
2010 Chile earthquake
Titanium La Portada