Explanation of Responses

Name:
Citadel L P
   
Address:
c/o Citadel Investment Group, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL LIMITED PARTNERSHIP

By:
Citadel Investment Group, L.L.C.,
 
its General Partner
 
 
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Citadel Investment Group, L.L.C.
   
Address:
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL INVESTMENT GROUP, L.L.C.

By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Citadel Equity Fund Ltd.
   
Address:
c/o Citadel Investment Group, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL EQUITY FUND LTD.
 
By:
Citadel Limited Partnership,
 
its Portfolio Manager
 
  
By:
Citadel Investment Group, L.L.C.,
 
its General Partner
 
  
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Kenneth Griffin
   
Address:
c/o Citadel Investment Group, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



KENNETH GRIFFIN
 
By:
/s/ John C. Nagel            
 
John C. Nagel, attorney-in-fact *


* John C. Nagel is signing on behalf of Kenneth Griffin as attorney-in-fact pursuant to a power of attorney previously filed with the Securities and Exchange Commission on February 24, 2006, and hereby incorporated by reference herein. The power of attorney was filed as an attachment to a filing by Citadel Limited Partnership on Schedule 13G for Morgans Hotel Group Co.
 
 
 
 

JOINT FILER INFORMATION

Name:
Citadel Advisors LLC
   
Address:
c/o Citadel Investment Group II, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL ADVISORS LLC

By:
Citadel Holdings II LP,
 
its managing member
 
  
By:
Citadel Investment Group II, L.L.C.,
 
its General Partner
 
  
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Citadel Holdings I LP
   
Address:
c/o Citadel Investment Group II, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL HOLDINGS I LP

By:
Citadel Investment Group II, L.L.C.,
 
its General Partner
 
  
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Citadel Holdings II LP
   
Address:
c/o Citadel Investment Group II, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL HOLDINGS II LP

By:
Citadel Investment Group II, L.L.C.,
 
its General Partner
 
  
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Citadel Derivatives Group, LLC
   
Address:
c/o Citadel Investment Group II, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL DERIVATIVES GROUP LLC

By:
Citadel Limited Partnership,
 
its Managing Member
 
  
By:
Citadel Investment Group, L.L.C.,
 
its General Partner
 
  
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory


 
 
 

JOINT FILER INFORMATION

Name:
Citadel Derivatives Trading Ltd.
   
Address:
c/o Citadel Investment Group II, L.L.C.
 
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL DERIVATIVES TRADING LTD.

By:
Citadel Limited Partnership,
 
its Portfolio Manager
 
  
By:
Citadel Investment Group, L.L.C.,
 
its General Partner
 
  
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory
 
 
 
 
 

JOINT FILER INFORMATION

Name:
Citadel Investment Group II, L.L.C.
   
Address:
131 S. Dearborn Street, 32nd Floor
 
Chicago, Illinois 60603
   
Designated Filer:
Citadel Limited Partnership
   
Issuer and Ticker Symbol:
Huntsman Corporation [HUN]
   
Date of Event
09/20/2008
Requiring Statement:
  



CITADEL INVESTMENT GROUP II, L.L.C.
 
By:
/s/ John C. Nagel            
 
John C. Nagel, Authorized Signatory