Attached files
| file | filename |
|---|---|
| 10-K/A - AMENDMENT NO. 1 TO FORM 10-K - Howmet Aerospace Inc. | d257313d10ka.htm |
| EX-24 - POWER OF ATTORNEY FOR CERTAIN DIRECTORS - Howmet Aerospace Inc. | d257313dex24.htm |
Exhibit 31
Certifications
I, Klaus Kleinfeld, certify that:
| 1. | I have reviewed this Amendment No. 1 to the annual report on Form 10-K of Alcoa Inc.; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
Date: February 28, 2012
| /s/ Klaus Kleinfeld |
| Name: Klaus Kleinfeld |
| Title: Chairman and Chief Executive Officer |
I, Charles D. McLane, Jr., certify that:
| 1. | I have reviewed this Amendment No. 1 to the annual report on Form 10-K of Alcoa Inc.; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
Date: February 28, 2012
| /s/ Charles D. McLane, Jr. | ||
| Name: | Charles D. McLane, Jr. | |
| Title: | Executive Vice President and Chief Financial Officer | |