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We apply the Sustainability Reporting Guidelines issued by the Global Reporting Initiative (GRI). We also participate in the Carbon Disclosure Project initiative (CDP).



GRI is an independent organisation whose mission is to provide a trusted and credible framework for sustainability reporting.

Our Sustainable Development Report (2014) applied the GRI G4 guideline at comprehensive level with external assurance. We have applied GRI since 2007.


The Carbon Disclosure Project holds the largest database of primary corporate climate change information in the world. Thousands of organisations from across the world’s major economies measure and disclose their greenhouse gas emissions, water use and climate change strategies through CDP. We have been reporting CDP since 2007.

Download our latest Carbon Disclosure Project report.

Carbon management

We aim to increase our usage of biomass - a fossil-fuel alternative- and have an on-going commitment to invest in the reduction of our CO₂emissions.

Read more about our carbon management