External assurance

We commissioned Corporate Citizenship to undertake assurance of our 2008 sustainability reporting and SGS to verify our global carbon emissions data. We recognise our assurance process can be improved and are committed to making it more robust in 2009. This will include verification of our Key Performance Indicators and supporting data systems. Our future assurance will be undertaken by an independent, third party service provider in accordance with the AA1000 sustainability assurance standard.