CK Crompton Cp

Robert L. Wood, chairman and chief executive officer of Crompton Corporation (NYSE: CK), will speak at the Goldman Sachs Basic Materials Conference in New York City on Wednesday morning, May 18, at 8:00 a.m. Eastern daylight savings time. Persons wishing to hear Mr. Wood's presentation may participate in a live webcast by clicking on the Investor Relations button at www.cromptoncorp.com. Crompton Corporation, with 2004 sales of $2.5 billion, is a producer and marketer of specialty chemicals and polymer products. Additional information concerning Crompton Corporation is available at www.cromptoncorp.com.