Ball Corporation Current Report on Form 8-K Dated July 29, 1998 Exhibit EX-99 Note to editors: The following is a joint news release from Ball Corporation and Reynolds Metals Company. Please feel free to contact either company. For Reynolds Metals Company For Ball Corporation Contact Lou Anne J. Nabhan Contact S. Scott McCarty Telephone: (804) 281-2171 Telephone: (303) 460-2103 Home: (804) 359-2986 Home: (303) 635-0454 http://www.rmc.com http://www.ball.com REYNOLDS METALS AND BALL CORPORATION ANNOUNCE EXPIRATION OF HART-SCOTT-RODINO WAITING PERIOD July 23, 1998--Ball Corporation [NYSE: BLL] and Reynolds Metals Company (NYSE:RLM) today announced that the Hart-Scott-Rodino waiting period regarding Ball's purchase of Reynolds' North American aluminum beverage can and end assets expired on Tuesday, July 21, 1998. * * *