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August 10, 2005

Alcoa Provides Lightweight Aluminum Components and Wiring System for New GM Z06 Corvette

PITTSBURGH--(BUSINESS WIRE)--Aug. 10, 2005--Alcoa (NYSE:AA) announced today that it has been sourced for various lightweight aluminum components and the power and signal distribution system essential for the new General Motors high-performance Corvette Z06, scheduled to debut later this year.

Alcoa provides the aluminum extrusions for two, full-length aluminum frame rails and the roof-bow, which are main structural elements of the vehicle's aluminum spaceframe. The aluminum components are produced at Alcoa's automotive units located in Cressona, Pennsylvania and Auburn, Indiana.

A key structural element of the body structure of the Z06 is the full-length aluminum frame rails, which weigh approximately 50 pounds each and are 6 inches in diameter and 14 feet long. "The frame rails are some of the largest ever used for this type of application," said Dave Dobson, President of Alcoa Engineered Products. The aluminum rails were engineered as a performance enhancer over the base C5 steel rails.

Alcoa agreed to supply extrusions that would fit into GM's existing hydroforming process. "By working closely with our customer on their specifications, GM did not need to retrofit their tube bending, or hydroforming equipment, to accommodate aluminum," Dobson continued. "Hydroforming of Alcoa's large diameter seamless tube represents an exciting new application for both Alcoa and GM."

In addition, Alcoa's AFL Automotive unit designed and manufactured the power and signal distribution system used in the Z06. "AFL Automotive designed the distribution system for the 2005 Corvette; we enhanced that system to meet the high-performance requirements of the Z06," said Bob Alexander, vice president of Alcoa and AFL Automotive.

Use of weight-saving materials, such as aluminum, helped the ZO6 Corvette break the four-second barrier from 0 to 60, with a time of 3.7 seconds.

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, 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 vinyl siding, closures, fastening systems, precision castings, and electrical distribution systems for cars and trucks. The company has 131,000 employees in 43 countries and has been a member of the Dow Jones Industrial Average for 45 years and the Dow Jones Sustainability Indexes since 2001. More information can be found at www.alcoa.com