Notice of Future Press Release & Conference Call

October 31, 2006 - Batavia, Illinois - Portola Packaging, Inc. will report its results for the fourth quarter ended August 31, 2006 in a press release to be issued on November 13, 2006.

In addition, Executive Management will hold a conference call to discuss fourth quarter financial results.  Details of the call are as follows:

Date of the call: November 14, 2006
Time of the call: 10:00AM Central Time
U.S. Dial In Number: 888-639-6205
International Dial In Number: 703-925-2608

A replay of the call will be available beginning on November 14, 2006 at 3:15 PM Central Time and ending on December 14, 2006 at 11:59PM Central Time.  Dial in numbers for the replay are:

U.S.: 800-475-6701
International: 320-365-3844
Access Code: 846899

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