The principles of the environmental policies of Abengoa are based on compliance with the current legal regulations applicable, preventing or minimizing damaging or negative environmental consequences, reducing the consumption of energy and natural resources, and achieving ongoing improvement in environmental conduct.

In response to this commitment to the sustainable use of energy and natural resources, Abengoa, in its Management Rules and Guidelines for the entire Group, explicitly establishes the obligation to implement and certify environmental management systems in accordance with the ISO 14001 International Standard.

Consequently, by year-end 2011, the percentage of Companies with Environment Management Systems certified according to the ISO 14001 Standard per sales volume is 88.18%.

The table below lists the percentage of distribution of the Companies with Certified Environmental Management Systems, broken down by business unit: