The title Alcoa, already the second worst performance of the Dow Jones in 2008, on a reduction of almost half of the course of aluminum from July, down 5% at 11.50 dollars Tuesday afternoon Exchange after the announcements.

Alcoa said target reductions, plant closures and consolidations, primarily in the United States and Europe.

The group will eliminate 13,500 jobs, or 13% of its global workforce, by the end of 2009. It will also delete posts 1700 subcontractors.

The group will also reduce its primary aluminum production by more than 750,000 tons or 18% of its production and annualized alumina production will also be reduced.

"The times are extraordinary, calling on the speed and the decision to address the current economic crisis, and the flexibility and foresight to be prepared for future uncertainties in our markets," said the CEO of Alcoa, Klaus Kleinfeld.

Alcoa expects the total restructuring charges and other special charges in the fourth quarter reach 900-950 million after taxes, or 1,13-19 per share.

The group will eventually save about $ 450 million per year through this program of restructuring.

Steve James, French Stanislas Dembinski