Report of Independent
Accountants on
Condensed Consolidated
Financial Statements

To the Shareholders and Directors of Millipore Corporation:

We have audited, in accordance with auditing standards generally accepted in the United States, the consolidated balance sheets of Millipore Corporation as of December 31, 1999 and 1998, and the related consolidated statements of income, shareholders’ equity, and cash

flows for each of the three years in the period ended December 31, 1999 (not presented herein); and in our report dated January 19, 2000, we expressed an unqualified opinion on those consolidated financial statements.

In our opinion, the information set forth in the accompanying condensed consolidated balance sheets as of December 31, 1999 and 1998 and condensed dated statements

of income and cash flows for each of the three years in the period ended December 31, 1999 is fairly stated, in all material respects, in relation to the consolidated financial statements from which it has been derived.

PricewaterhouseCoopers LLP
Boston, Massachusetts
January 19, 2000

Investor Information

Registrar and Transfer Agent

BankBoston, N.A.
c/o Boston EquiServe
P.O. Box 8040
Boston, MA 02266-8040

Annual Meeting

The Annual Meeting of Shareholders of Millipore Corporation will be held at our Bedford, Massachusetts facility located at 80 Ashby Road on Thursday, April 27, 2000 at 11 a.m.

Dividend Reinvestment

An automatic dividend reinvestment program is available to shareholders. A descriptive brochure and authorization card are available on request.

Reports

Quarterly results are available through the Internet, or on request from the Company. Form 10-K is filed annually with the Securities and Exchange Commission and is available on the Internet and on request from the Company. To receive the latest quarterly results through the Internet go to URL http://www.millipore.com. For a copy of the 10-K or other investor information, contact:

Geoffrey E. Helliwell
Director of Treasury Operations
Millipore Corporation
80 Ashby Road
Bedford, Massachusetts 01730-2271
(781) 533-2032
E-mail:

Common Stock

Millipore’s Common Stock is traded on the New York Stock Exchange. Our symbol is MIL. Stock price information is shown below.

Millipore Stock Prices

Stock price data from the New York Stock Exchange is based on high and low sales prices. There were approximately 3,002 shareholders of record as of December 31, 1999.