Alcoa Will Host Webcast of Annual Meeting of Shareholders

May 3, 2011

NEW YORK–Alcoa (NYSE:AA) will host a live webcast of its Annual Meeting of
Shareholders on Friday, May 6, 2011, beginning at 9:30 a.m. (Eastern
Time). Registration for the webcast is required. To register, go to www.alcoa.com/annualmeeting.
The meeting will be webcast via Alcoa’s website at www.alcoa.com/annualmeeting
with presentation materials available on-line. A replay of the webcast
will be available by close of business on Friday, May 6 at this same
website.

About Alcoa

Alcoa is the world’s leading producer of primary and fabricated
aluminum, as well as the world’s largest miner of bauxite and refiner of
alumina. In addition to inventing the modern-day aluminum industry,
Alcoa innovation has been behind major milestones in the aerospace,
automotive, packaging, building and construction, commercial
transportation, consumer electronics and industrial markets over the
past 120 years. Among the solutions Alcoa markets are flat-rolled
products, hard alloy extrusions, and forgings, as well as Alcoa® wheels,
fastening systems, precision and investment castings, and building
systems in addition to its expertise in other light metals such as
titanium and nickel-based super alloys. Sustainability is an integral
part of Alcoa’s operating practices and the product design and
engineering it provides to customers. Alcoa has been a member of the Dow
Jones Sustainability Index for nine consecutive years and approximately
75 percent of all of the aluminum ever produced since 1888 is still in
active use today. Alcoa employs approximately 59,000 people in 31
countries across the world. More information can be found at www.alcoa.com.