2 Audit certification 4 3 Introduction 5 4 Ethics and values 9 5 Human resources 12 6 Shareholders and investors 17 7 Environment 20 8 Supply chain / Suppliers and contractors 26 9 Customers and consumers 28 10 Contribution and cooperation with society 30 11 Communication and dialogue 34 12 Responsibility for the corporate social responsibility report 36 Bearing those cases in which the comprehension of the text requires so, all references contained in this document using the male gender will be deemed as indistinctly referring to all persons, men or women, in order to avoid reiteration of terms to facilitate the reading thereof.