Focusing on sustainability only makes business sense if doing so adds value. As our Sustainability Charter commitments help us extract strategic value, we view them as a business imperative and a way of honing our competitive advantage. Meeting our Charter commitments is essential to our sustainability as an organisation, but so, too, is balancing these commitments. The issues that affect us and our stakeholders are constantly evolving and shifting in importance. Being sensitive to these developments means balancing and adjusting our energies and capital expenditure in terms of the commitments while maintaining our core values of Integrity, Courage, Smartness and Speed.