MONTREAL, CANADA- February 2, 2007 - Alcan and the International Business Leaders Forum (IBLF) are pleased to announce the US$1 million Alcan Prize for Sustainability 2007 is now open for entries. Information on eligibility criteria and how to enter the Alcan Prize for Sustainability is available at www.alcanprizeforsustainability.com. The closing date for receipt of entries is midnight March 31, 2007 (GMT).

"Since the Alcan Prize for Sustainability was introduced four years ago, it has become a significant mechanism for businesses and the NGO community to work together to address social, economic, and environmental issues and how they relate to sustainability," said Dick Evans, President and Chief Executive Officer, Alcan Inc.

"I strongly encourage all sustainability-focused NGOs to submit their entries for the Alcan Prize for Sustainability. Beyond the US$1 million, this Prize represents an extraordinary opportunity to highlight the benefits of successful sustainable development practices," he added.

The Alcan Prize is open to all not-for-profit, non-governmental, and civil society organizations based anywhere in the world that are working to advance the goals of economic, environmental, and social sustainability. The Alcan Prize for Sustainability was created to recognize the not-for-profit sector for its contributions to global sustainability both in the community and more widely by influencing policy.

In addition to the US$1 million Prize, Alcan Grants worth US$15,000 will be awarded to nine NGOs to invest in certifiable capacity training such as the one-year, part-time Postgraduate Certificate in Cross Sector Partnership accredited by the University of Cambridge.

To ensure the objectivity of the Alcan Prize for Sustainability, Alcan partners with the Prince of Wales International Business Leaders Forum (IBLF), which manages the application and selection process. The IBLF promotes international leadership in responsible business to benefit business and society. To ensure a rigorous and transparent approach, Alcan does not have a voice in the Assessment or Adjudication Panel established by the IBLF.

The 2006 Alcan Prize winner was the Barefoot College of India, an organization devoted to improving the lives of India’s poorest people by emphasizing practical knowledge and skills over paper qualifications through a learning-by-doing process of education.

Alcan Inc. (NYSE, TSX: AL) is a leading global materials company, delivering high quality products and services worldwide. With world-class technology and operations in bauxite mining, alumina processing, primary metal smelting, power generation, aluminum fabrication, engineered solutions as well as flexible and specialty packaging, today’s Alcan is well positioned to meet and exceed its customers’ needs. Alcan is represented by 65,000 employees in 61 countries and regions, and posted revenues of US$20.3 billion in 2005. The Company has featured on the Dow Jones Sustainability World Index consecutively since 2003. For more information, please visit: www.alcan.com.

Rio Tinto Alcan

Rio Tinto Alcan

About Rio Tinto Rio Tinto is a leading international mining group headquartered in the UK, combining Rio Tinto plc, a London and NYSE listed company, and Rio Tinto Limited, which is listed on the Australian Securities Exchange. Rio Tinto's business is finding, mining, and processing mineral resources. Major products are aluminium, copper, diamonds, energy (coal and uranium), gold, industrial minerals (borax, titanium dioxide, salt, talc) and iron ore. Activities span the world but are strongly represented in Australia and North America with significant businesses in South America, Asia, Europe and southern Africa.

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