Milacron Q1 Earnings Release, Conference Call on May 5

CINCINNATI, Ohio - April 21, 2005...Milacron Inc. (NYSE: MZ), a leading global supplier of plastics-processing technologies and industrial fluids, will release its operating and financial results for the first quarter of 2005 prior to the stock market opening on Thursday, May 5, 2005.

On the same day at 1:00 p.m. ET, management will conduct an investor conference call, which will be webcast live on the company's website, www.milacron.com. For analysts and investors wishing to ask questions, the dial-in number will be (913) 981-4900. A recording of the conference call will be available from 4:00 p.m. ET, Thursday, May 5, through midnight Monday, May 12, on Milacron's website or by phone: (719) 457-0820 and providing the access code: 4446423.

First incorporated in 1884, Milacron employs 3,500 people and has major manufacturing facilities in North America, Europe and Asia. For further information, visit the company's web site or call the toll-free investor hot line: 800-909-MILA (800-909-6452).