0000950123-11-046746 Sample Contracts

UNDERWRITING AGREEMENT

Underwriting Agreement • May 6th, 2011 • Celanese CORP • Plastic material, synth resin/rubber, cellulos (no glass) • New York

• Contract Type
  Underwriting Agreement
• Filed
  May 6th, 2011
• Company
  Celanese CORP
• Industry
  Plastic material, synth resin/rubber, cellulos (no glass)
• Jurisdiction
  New York

Merrill Lynch, Pierce, Fenner & Smith Incorporated As Representative of the several Underwriters One Bryant Park New York, New York 10036 Ladies and Gentlemen:

CELANESE US HOLDINGS LLC THE GUARANTORS PARTY HERETO, as Guarantors and WELLS FARGO BANK, NATIONAL ASSOCIATION as Trustee 5⅞% Senior Notes due 2021 FIRST SUPPLEMENTAL INDENTURE Dated as of May 6, 2011 to INDENTURE Dated as of May 6, 2011

First Supplemental Indenture • May 6th, 2011 • Celanese CORP • Plastic material, synth resin/rubber, cellulos (no glass) • New York

• Contract Type
  First Supplemental Indenture
• Filed
  May 6th, 2011
• Company
  Celanese CORP
• Industry
  Plastic material, synth resin/rubber, cellulos (no glass)
• Jurisdiction
  New York

FIRST SUPPLEMENTAL INDENTURE, dated as of May 6, 2011, among CELANESE US HOLDINGS LLC, a Delaware limited liability company (the “Issuer”), the Guarantors (as defined herein) and WELLS FARGO BANK, NATIONAL ASSOCIATION, as trustee (the “Trustee”).