Webcast Alert: Lyondell Chemical Company Announces Second-Quarter 2004 Earnings Teleconference Schedule

Lyondell Chemical Company (NYSE: LYO - News) announced the following schedule and contact information for its second-quarter earnings release and teleconference:

Earnings Release July 22, 2004, 8:30 a.m. Eastern Time

Teleconference July 22, 2004, 11:30 a.m. Eastern Time, Hosted by Doug Pike, Director, Investor Relations, and Kevin DeNicola, Senior Vice President and Chief Financial Officer.

Listen-only mode via telephone and Internet broadcast on Lyondell's web site.

Dial-In Numbers U.S. Toll Free: 888-391-2385, Pass Code: Lyondell International: 484-644-0641, Pass Code: Lyondell

Please call 10 to 15 minutes before the scheduled start of the teleconference.

Web Cast will be available at 1:30 p.m. Eastern Time on July 22.