Structured Products Corp Tiers R Inflation Linked Tr 2004-21 Sample Contracts

EXECUTION COPY

Guarantee • April 11th, 2007 • Structured Products Corp Tiers R Inflation Linked Tr 2004-21 • Asset-backed securities • New York

• Contract Type
  Guarantee
• Filed
  April 11th, 2007
• Company
  Structured Products Corp Tiers R Inflation Linked Tr 2004-21
• Industry
  Asset-backed securities
• Jurisdiction
  New York

GUARANTEE, dated as of April 11, 2007 of Citigroup Inc., a Delaware corporation (“Guarantor”), in favor of U.S Bank Trust National Association, not in its individual capacity, but solely as trustee of TIERS® Inflation-Linked Trust 2004-21 (“Counterparty”).