[GRAPHIC OMITTED]
PPG Industries PPG Industries, Inc.
One XXX Xxxxx
Xxxxxxxxxx, Xxxxxxxxxxxx 00000 XXX
Telephone (000) 000-0000
Fax (000) 000-0000
xxxxxxxxxx@xxx.xxx
Xxxxx X. Xxxxxxxxx
Director Manufacturing & Applied
Technology, Optical Products
April 11, 2003
Xx. Xxxxxx X. Xxxxx
Vice President of Technology Commercialization
Universal Display Corporation
000 Xxxxxxxx Xxxxxxxxx
Xxxxx, XX 00000
RE: UDC - PPG Development and License Agreement (October 1, 2000) -
Third Amendment
Dear Xxxxxx:
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,
Xxxxx X. Xxxxxxxxx
--------------------------------------------
Xxxxx X. Xxxxxxxxx
ACKNOWLEDGED AND AGREED TO:
Universal Display Corporation.
By: Xxxxxx X. Xxxxx
--------------------------------------
Print Name: Xxxxxx X. Xxxxx
-------------------------------
Title: V.P. of Technology Commercialization
ATTACHMENT A
[The confidential material contained herein has been omitted and has been
separately filed with the Commission.]
