Notice of Future Press Release & Conference Call

June 19, 2007 - Batavia, Illinois - Portola Packaging, Inc. will report its results for the third quarter ended May 31, 2007 in a press release to be issued on July 11, 2007.

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

Date of the call:  July 12, 2007
Time of the call:  10:00AM Central Time
U.S. Dial In Number:  866-861-5393
International Dial In Number:  612-288-0329

A replay of the call will be available beginning on July 12, 2007 at 3:15 PM Central Time and ending on August 12, 2007 at 11:59PM Central Time. Dial in numbers for the replay are:

U.S.:  800-475-6701
International:  320-365-3844
Access Code:  876644