MatrixOne and Procter & Gamble to Host Conference Call To Review Licensing Agreement

Business Wire, June 27, 2002

Business/Technology Editors

MatrixOne, Inc. (NASDAQ: MONE), a leading provider of product lifecycle management solutions for the value chain, and the Procter & Gamble Company (P&G) (NYSE: PG) will be hosting a conference call today at 11.00 a.m. EST. MatrixOne CEO Mark O'Connell will be joined by P&G's CIO, Steve David, to discuss the announcement made today by the two companies (see related release "Procter & Gamble And MatrixOne Enter License Agreement" - http://www.matrixone.com/about/pressbox/releases /2002_06_27_release.html).

Information regarding the live conference call is as follows:


Topic:            MatrixOne/P&G License Agreement

Date:             Thursday, June 27, 2002

Time:             11.00 a.m. EST / 8.00 a.m. PST

                  Domestic: 888-455-9765
Dial-in           International:  1-630-395-0302
Information:      Leader: MatrixOne
                  Passcode: MatrixOne

Presentation      PowerPoint presentation is available at
Available:        http://www.matrixone.com/about/matrixone_pg.html

A replay will be made available one hour after the event and will be available until 5.00pm ET on Thursday, July 4, 2002 at the following dial-in numbers: domestic 800-964-3292, international 1-402-998-1011, passcode MatrixOne.

About MatrixOne

MatrixOne, Inc. is changing the way the world brings products to market(TM) by helping customers to accelerate the right products to market profitably. Committed to the success of innovative companies, MatrixOne, together with its partners, offers product lifecycle management (PLM) solutions that enable enterprises to reduce costs, speed innovation, and maximize revenues across global value chains. MatrixOne's approximately 600 global customers represent the aerospace/defense, automotive, consumer products, general machinery, high technology, and life sciences industries, and include GE, Procter & Gamble, Philips, Siemens, Agilent Technologies, Johnson Controls, and Honda. A global corporation, MatrixOne is headquartered in Westford, Massachusetts.

About Procter & Gamble

P&G markets 250 brands to five billion consumers in 140 countries. P&G invests nearly $2 billion a year to develop and improve its products -- leading the way in R&D globally among consumer products companies. P&G's Global Licensing and External Business Development organization is charged with ensuring the company maximizes the value of its technologies and know-how by selling, licensing and, in some cases, donating technologies. The unit is also responsible for licensing select P&G brand trademarks. P&G's brands include Pampers(R), Tide(R), Ariel(R), Always(R), Whisper(R), Pantene(R), Bounty(R), Pringles(R), Folgers(R), Charmin(R), Downy(R), Lenor(R), Iams(R), Olay(R), Clairol Nice 'n Easy(R), Herbal Essences(R), Crest(R), Vicks(R) and Actonel(R). P&G employs nearly 106,000 people in more than 80 countries worldwide. For more information about P&G, please visit our website at www.pg.com.

MatrixOne is a registered trademarks, and eMatrix, Changing the Way the World Brings Products to Market, Leading Provider of Product Collaboration for the Value Chain, and Value Chain Portfolio are trademarks of MatrixOne, Inc. All other trademarks and service marks are the property of their respective owners.

Forward-looking statements in this release are subject to risks and uncertainties that could cause our actual results to differ materially from those anticipated. Such statements may relate, among other things, to our plans, objectives and expected financial and operating results. The risks and uncertainties that may affect forward-looking statements include, among others: poor product sales, long sales cycles, difficulty developing new products, difficulty in relationships with vendors and partners, higher risk in international operations, difficulty assimilating future acquisitions, difficulty managing rapid growth, and increased competition. For a more about the risks and uncertainties of our business, see our periodic and other S.E.C. filings.