January 6, 2003

RE: Company Name Change to EMD Chemicals Inc.

Dear Customer:

This is to confirm that the announced Company Name Change for EM Industries, Inc. and for EM Science, Division of EM Industries, Inc., affects only the name and logo for our company. We are the same company with a new name, EMD Chemicals Inc.

There will be no changes in the source, manufacturing processes, or the primary packaging of our products as a result of this change. The chemical products and the information provided about them will remain the same. There will, however, be some unavoidable changes in the name and logo used for certificates of analysis, material safety data sheets and product labels.

We will begin to ship products with the EMD Chemicals Inc. name and the new logo during January 2003. The changes will be phased in gradually throughout the year and for some time you may continue to receive EM Industries, Inc. or EM Science labeled products as well as the new EMD Chemicals Inc. labeled products. Be assured that the contents of your products whether labeled as EM or as EMD Chemicals Inc. have not changed.

We will make every effort to maintain consistency between the product labels and the MSDSs and Certificates of Analysis that accompany them. However, you may see occasional company name discrepancies between product labels and accompanying documentation as we make the transition to EMD Chemicals Inc.

We regret any inconvenience that these changes may cause you. We believe that this conversion will allow us to serve you better in the future. Please contact our Customer Service department directly at 1-800-222-0342 if you have any questions concerning our products.

Best regards,


Anna G. Bentley, Ph.D.
Vice President, RA/QA