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Corporate Responsibility

ATTESTATION OF PRESENTATION AND INDEPENDENT VERIFIER’S ASSURANCE REPORT

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The sample thus selected represents on average 15% of the workforce for the social indicators; 37% of water consumption; 33% of energy consumption; 11% of hotels for the other environmental indicators; 41% of hotels for sustainable procurement.

Concerning the qualitative consolidated information that we deemed to be the most important, we conducted interviews and reviewed the related documentary sources in order to corroborate this information and assess its fairness.

As regards the other consolidated information published, we assessed its fairness and consistency in relation to our knowledge of the Company and, where applicable, through interviews or the consultation of documentary sources.

Finally, we assessed the relevance of the explanations given in the event of the absence of any information.

Comments on the Guidelines and the Information

We would like to draw attention to the following points:

a the consolidated perimeter for the reported Information covers all the subsidiaries and managed hotels. For some indicators, it can go beyond, covering some franchised hotels, as mentioned in the management report;

a with the exception of the indicators for water and energy consumptions, internal controls carried out at country and area levels show themselves to be heterogeneous and in some cases limited. This statement applies in particular for the indicators related to the Charter 21 actions, for which the supporting evidence is difficult to collect and analyze;

a some indicators were recently developed and are still evolving, in particular the ones related to waste. In those cases, methodological limitations were mentioned in the relevant chapters;

a for the « percentage of employees trained », the disparity of monitoring tools across countries could lead to an overestimation risk;

a in order to improve the consistency of results regarding sustainable procurement, its importance as well as the definitions of indicators and some actions of the Charter 21 should be clarified.

Conclusion

We express a qualified conclusion on the following point:

a the indicators Â« average number of days of absence per employee for illness, occupational disease and work-related accident» and « for other reasons » are under estimated outside Europe due to national regulations causing heterogeneous interpretations of the Guidelines in the different countries.

In our opinion, except for the effects of the matter described above, nothing has come to our attention that causes us to believe that the Information is not fairly presented, in all material respects, in accordance with the Guidelines.

Paris La Défense, March 4, 2013

The Independent Verifier
Ernst & Young et Associés
Sustainable Development Department

Éric Duvaud