Alcoa Selected Again for Dow Jones Sustainability Indexes.

PITTSBURGH -- Alcoa (NYSE:AA) announced today that it has been chosen again as a component of the Dow Jones Sustainability Index family. Selection is based on a thorough assessment of a company's economic, environmental and social performance. This is the fifth time Alcoa has been named a member of the index.

Launched in 1999, the Dow Jones Sustainability Indexes are the first global indexes tracking the financial performance of the leading sustainability-driven companies worldwide. Total assets under management in DJSI-based investment vehicles currently amount to more than $5 billion, a 30% increase over the last 12 months.

"Such prestigious recognition of our sustainability efforts gives us great pride, and demonstrates what can be achieved when Alcoans around the globe work in partnership with the community to promote sustainability through economic success, environmental excellence and social responsibility," said Alain Belda, Alcoa Chairman and CEO.

Alcoa's 2005 Sustainability Report details the company's revised strategic framework for sustainability supported by clear targets for measuring progress toward achievement of Alcoa's vision for 2020. Alcoa has nine regional sustainability reports available on www.alcoa.com. The 2005 Sustainability Report and the nine regional sustainability reports can be downloaded at www.alcoa.com/lnk/sustainability.

More information about the DJSI can be found at http://www.sustainability-indexes.com.

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, Alcoa also markets consumer brands including Reynolds Wrap(R) foils and plastic wraps, Alcoa(R) wheels, and Baco(R) 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