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PPG Industries PPG Industries, Inc.
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Director Manufacturing & Applied
Technology, Optical Products
April 11, 2003
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Vice President of Technology Commercialization
Universal Display Corporation
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RE: UDC - PPG Development and License Agreement (October 1, 2000) -
Third Amendment
Dear ▇▇▇▇▇▇:
At the request of Universal Display Corporation (UDC), PPG is willing to add
[The confidential material contained herein has been omitted and has been
separately filed with the Commission.] additional [The confidential material
contained herein has been omitted and has been separately filed with the
Commission.] materials [The confidential material contained herein has been
omitted and has been separately filed with the Commission.] to the list of [The
confidential material contained herein has been omitted and has been separately
filed with the Commission.] Chemicals manufactured by PPG and supplied to UDC
under the above subject Agreement. Attachment A is hereby amended to include the
listing of these materials (copy attached).
Upon acceptance by UDC, please sign both originals retaining one for your files
and returning the other to my attention.
Best regards,
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ACKNOWLEDGED AND AGREED TO:
Universal Display Corporation.
By: ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
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Print Name: ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
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Title: V.P. of Technology Commercialization
ATTACHMENT A
[The confidential material contained herein has been omitted and has been
separately filed with the Commission.]