ISO 9001 certificates for Celanese Chemicals locations:

USA

• Bay City, Texas, valid until 6/25/2009
• Bishop, Texas, valid until 5/27/2009
• Calvert City, Ky., valid until 8/25/2009
• Clear Lake, Texas, valid until 10/13/2009
• Dallas, Texas, valid until 6/02/2008
• Enoree, S.C. valid until 2/21/2009
• Pampa, Texas, valid until 5/28/2009
• Pasadena, Texas, valid until 10/10/2009

Canada

• Edmonton, Alberta,  valid until 9/05/2006

Mexico

• Ocotlan, Cangrejera and Mexico City, valid until 7/08/2008

Germany

• Kronberg, Frankfurt am Main/Höchst
  valid until 2/27/2010
  English   German

France

• Pardies, Roussillon, valid until 11/14/2009

Netherlands

• Roosendaal, valid until 1/20/2007
  English   German

Spain

• Guardo, valid until 7/10/2009
• Tarragona (VAM), valid until 6/30/2009
• Tarragona (PVOH), until 5/07/2009

Asia

• Singapore, valid until 2/29/2008

ISO 14001 certificates for Celanese Chemicals locations:

Mexico

• Cangrejera, valid until 6/22/2008

Germany

• Frankfurt am Main/Höchst & Kronberg
  valid until 2/27/2010
  English   German

France

• Pardies, valid until 11/14/2009

Netherlands

• Roosendaal, valid until 1/20/2007
  English   German

Spain

• Guardo, valid until 12/27/2008
• Tarragona, valid until 10/31/2008

AIB Certificate for Food Safety

France

• Roussillon