0001193125-13-129608 Sample Contracts

UNITED STATES STEEL CORPORATION, Issuer and THE BANK OF NEW YORK MELLON, Trustee SEVENTH SUPPLEMENTAL INDENTURE DATED AS OF MARCH 26, 2013 TO INDENTURE DATED AS OF MAY 21, 2007 Relating To $316,250,000 Principal Amount

Seventh Supplemental Indenture • March 27th, 2013 • United States Steel Corp • Steel works, blast furnaces & rolling mills (coke ovens) • New York

• Contract Type
  Seventh Supplemental Indenture
• Filed
  March 27th, 2013
• Company
  United States Steel Corp
• Industry
  Steel works, blast furnaces & rolling mills (coke ovens)
• Jurisdiction
  New York

SEVENTH SUPPLEMENTAL INDENTURE, dated as of March 26, 2013 (this “Supplemental Indenture”), to the Indenture (defined below) among United States Steel Corporation (the “Company”), a Delaware corporation, and The Bank of New York Mellon, a New York banking corporation, as Trustee (the “Trustee”).

UNITED STATES STEEL CORPORATION, Issuer and THE BANK OF NEW YORK MELLON, Trustee SIXTH SUPPLEMENTAL INDENTURE DATED AS OF MARCH 26, 2013 TO INDENTURE DATED AS OF MAY 21, 2007 Relating To $275,000,000 6.875% Senior Notes due April 1, 2021

United States Steel Corp • March 27th, 2013 • Steel works, blast furnaces & rolling mills (coke ovens) • New York

• Company
  United States Steel Corp
• Filed
  March 27th, 2013
• Industry
  Steel works, blast furnaces & rolling mills (coke ovens)
• Jurisdiction
  New York

SIXTH SUPPLEMENTAL INDENTURE, dated as of March 26, 2013 (the “Supplemental Indenture”), to the Indenture (defined below) between United States Steel Corporation (the “Company”), a Delaware corporation, and The Bank of New York Mellon, a New York banking corporation, as Trustee (the “Trustee”).