HOUSTON, Dec. 15 /PRNewswire-FirstCall/ -- Lyondell Chemical Company (NYSE: LYO) announced today that it has completed the call of $430 million principal amount of its 9.5 percent Senior Secured Notes due 2008. Lyondell has now repaid $2.55 billion of debt since beginning its debt repayment program in September 2004.

Lyondell Chemical Company, headquartered in Houston, Texas, is North America's third-largest independent, publicly traded chemical company. Lyondell is a major global manufacturer of basic chemicals and derivatives including ethylene, propylene, titanium dioxide, styrene, polyethylene, propylene oxide and acetyls. It also is a refiner of heavy, high-sulfur crude oil and a significant producer of gasoline-blending components. Lyondell is a global company operating on five continents and employs approximately 11,000 people worldwide.

SOURCE: Lyondell Chemical Company

CONTACT: media, Lisa Martin-Walsh, +1-713-309-4890, or investors, Doug
Pike, +1-713-309-7141, both of Lyondell Chemical Company

Web site: http://www.lyondell.com/