Constar International Inc. To Announce Second Quarter Financial Results on July 28.

PHILADELPHIA -- Constar International Inc. (NASDAQ:CNST) will announce its 2004 second quarter financial results on Wednesday, July 28, 2004 before the U.S. markets open. At 9:00 a.m. EDT on that day, Constar will host a conference call to discuss the Company's results and performance. Forward-looking and other material information may be discussed on this conference call.

To access the call live via telephone, please call [phone] (domestic callers) or [phone] (international callers). The passcode is "Constar." To listen to a live webcast of the call via the internet, log on to http://www.constar.net approximately 15 minutes prior to the call to register and download any necessary audio software.

A replay of the broadcast will be available from 1:00 p.m. EDT later

that day through midnight EDT, Wednesday, August 4, 2004. The rebroadcast can be accessed via telephone by calling [phone] (domestic callers) or [phone] (international callers) and entering passcode 772787, or via the web at http://www.constar.net where it will be archived.

About Constar

Philadelphia-based Constar is a leading global producer of PET (polyethylene terephthalate) plastic containers for food, soft drinks and water. The Company provides full-service packaging solutions, from product design and engineering, to ongoing customer support. Its customers include many of the world's leading branded consumer products companies.