1) Actividades de Construccion y Servicios S.A., Madrid, Spain
2) On Feb. 25th, 2008, ACS informed that, as of Dec. 31, 2007, ACS held further 4.9% of HOCHTIEF shares through share options.
3) As of 20 November, 2008 (stock buyback program): of the 5.08% (3,553,670 voting rights) a portion of 2.32% (equivalent to 1,625,000 voting rights) is attributable to HOCHTIEF Pension Trust e.V.