EX-23 3 a2135508zex-23.htm EXHIBIT 23
QuickLinks -- Click here to rapidly navigate through this document


EXHIBIT 23

       

Analysis, Research & Planning Corporation's Consent



Union Carbide Corporation:

Analysis, Research & Planning Corporation ("ARPC") hereby consents to the use of ARPC's name and the reference to ARPC's reports dated January 9, 2003 and January 26, 2004 appearing in this Quarterly Report on Form 10-Q of Union Carbide Corporation for the quarter ended March 31, 2004.



/s/  B. THOMAS FLORENCE      
B. Thomas Florence
President
Analysis, Research & Planning Corporation
April 26, 2004
   
     

31




QuickLinks