The DJSI is regarded by many as the world's most important sustainability index and is an important guide for investors and other stakeholders for assessing companies' non-financial performance.

Hydro and Alcoa are the only aluminium companies included in this year's DJSI World Index which includes the 10 percent best performers in each industry.

Hydro's best scores in DJSI 2010 include the following:

• Transparency
• Biodiversity
• Environmental management systems
• Climate strategy
• Stakeholder engagement
• Occupational health and safety

"New and challenging evaluation criteria were established in 2010. We are certainly proud to being included in this important benchmark tool," says Kirsten M. Hovi, who is responsible for Hydro's non-financial reporting.

Hydro has been included in the DJSI every year since the indexes were launched in 1999.