HOUSTON, March 27 /PRNewswire/ -- Lyondell Chemical Company (NYSE: LYO) announced that Karen A. Twitchell, Vice President and Treasurer, will address financial analysts at the following event:

     Analysts Conference:  J. P. Morgan/Chase High Yield Conference
                           in New York
                           Thursday, March 29, 2001 at 9:50 a.m. Eastern Time

     Web Site Access:      The slides will be available at the time of the
                           presentation and afterwards at www.lyondell.com,
                           investor relations -- presentations section.

SOURCE Lyondell Chemical Company
Web site: http: //www.lyondell.com
Photo: NewsCom: http: //www.newscom.com/cgi-bin/prnh/20000921/LYOLOGO AP Archive: http://photoarchive.ap.org PRN Photo Desk, 888-776-6555 or 201-369-3467
CONTACT: media, Marvin Brown, 713-309-2643, or investors, Investor Relations, 713-652-4590, both of Lyondell Chemical Company
CAPTION: LYOLOGO LYONDELL LOGO Lyondell Logo. (PRNewsFoto)[PM] HOUSTON, TX USA 09/21/2000