Investor Contacts
| For shareowner inquiries, including stock certificates, account transfers, distribution checks and tax statements, please contact the transfer agent at: |
| ComputerShare Trust Company, N.A. 250 Royall Street Canton, MA 02021 Phone: (781) 575-2724 Corporate Website: http://www.computershare.com |
 |
| For investor relations inquiries, please contact: Investor Relations Terra Nitrogen L.P. c/o CF Industries Holdings, Inc. 4 Parkway North, Suite 400 Deerfield, IL 60015-2590 Investor Relations Line: (847) 405-2550 Email: InvestorRelations@cfindustries.com |