NEW YORK - September 6, 2007 - Alcoa (NYSE:AA) announced today that it has been selected as a component of the Dow Jones Sustainability Indexes for the sixth consecutive year. Selection is based on an analysis of a company's economic, environmental and social performance.

Begun in 1999, the Dow Jones Sustainability Indexes track the financial performance of the leading sustainability-driven companies worldwide.

"Being a component of this index family reflects our every day performance in search of excellence and the value we place as a company on sustainability," said Alcoa Chairman and CEO Alain Belda.

Alcoa's 2006 Corporate Sustainability Report highlights Alcoa's progress in sustainability and features engagement in our communities as a key to performance. An example: As a founding member of the U.S. Climate Action Partnership, Alcoa joined with twelve other companies and nongovernmental organizations to call on the U.S. government to enact legislation that would establish a cap and trade program to reduce carbon emissions that contribute to Global Climate Change. USCAP membership has now grown to 31 companies and organizations and is continuing to assist in the development of U.S. climate policy.

Alcoa's 2006 corporate sustainability report and eight regional reports from China, Australia, Jamaica, Suriname, Brazil, Canada, Europe and Iceland can be downloaded at http://www.alcoa.com/sustainability.

About Alcoa

Alcoa is the world's leading producer and manager of primary aluminum, fabricated aluminum and alumina facilities, and is active in all major aspects of the industry. Alcoa serves the aerospace, automotive, packaging, building and construction, commercial transportation and industrial markets, bringing design, engineering, production and other capabilities of Alcoa's businesses to customers. In addition to aluminum products and components including flat-rolled products, hard alloy extrusions, and forgings, Alcoa also markets Alcoa(R) wheels, fastening systems, precision and investment castings, structures and building systems. The company has 116,000 employees in 44 countries and has been named one of the top most sustainable corporations in the world at the World Economic Forum in Davos, Switzerland. More information can be found at www.alcoa.com

Alcoa Inc.

Alcoa Inc.

Alcoa (NYSE:AA) is the world's leading producer and manager of primary aluminum, fabricated aluminum and alumina facilities, and is active in all major aspects of the industry. Alcoa serves the aerospace, automotive, packaging, building and construction, commercial transportation and industrial markets, bringing design, engineering, production and other capabilities of Alcoa's businesses to customers. In addition to aluminum products and components, Alcoa also markets consumer brands including Reynolds Wrap® foils and plastic wraps, Alcoa® wheels, and Baco® household wraps. Among its other businesses are closures, fastening systems, precision castings, and electrical distribution systems for cars and trucks. The company has 129,000 employees in 44 countries and has been named one of the top most sustainable corporations in the world at the World Economic Forum in Davos, Switzerland. More information can be found at www.alcoa.com

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