Shareholder Services
Rohm and Haas Corporate Secretary's Office
100 Independence Mall West
Philadelphia, PA 19106
Phone: 800-764-0466
CFenner@rohmhaas.com

Institutional Investor Relations
Gary O'Brien
Director, Investor Relations
Phone: 215-592-3409
Fax: 215-592-6904
GOBrien@rohmhaas.com

Rohm and Haas Stock Transfer Agent
Equiserve Trust Company, N.A.
P.O. Box 43012
Providence, RI 02940-3012
Phone: 800-633-4236