UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.   )

Filed by the Registrant  x                            Filed by a Party other than the Registrant  ¨

Check the appropriate box:

 

¨		Preliminary Proxy Statement
¨		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨		Definitive Proxy Statement
x		Definitive Additional Materials
¨		Soliciting Material under Rule 14a-12
United States Steel Corporation
Name of the Registrant as Specified In Its Charter
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):
x		No fee required.
¨		Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
		1.		Title of each class of securities to which transaction applies:
		2.		Aggregate number of securities to which transaction applies:
		3.		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the filing fee is calculated and state how it was determined):
		4.		Proposed maximum aggregate value of transaction:
		5.		Total fee paid:
¨		Fee paid previously with preliminary materials.
¨		Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
		1.		Amount Previously Paid:
		2.		Form, Schedule or Registration Statement No.:
		3.		Filing Party:
		4.		Date Filed:

 

 

 

---

Commencing on or about April 13, 2011, United States Steel Corporation will send the following communication to certain shareholders:

April 13, 2011

Dear U. S. Steel Stockholder,

As of this writing, our records indicate that you have not yet voted in connection with our April 26, 2011 annual meeting of stockholders. Your vote is important to us. Your shares cannot be counted unless you provide instructions as to how you wish them to be voted. You can do this by (1) calling 1-800-454-8683 with the enclosed voting instruction form in hand and following the simple instructions, (2) going to www.proxyvote.com with your voting instruction form in hand and following the simple instructions, or (3) promptly marking, signing and returning your voting instruction form in the enclosed envelope.

Please Vote Today

If you have questions or need help voting your shares, please call our proxy solicitation firm, Georgeson Inc., at 1-800-248-7605, between 9:00 a.m. and 9:00 p.m. Eastern time Monday through Saturday. Your participation is greatly appreciated. Thank you very much.