Berry Global and Glatfelter Announce Date of Glatfelter Shareholders Meeting in Connection with the Proposed Merger of Berry’s Global Health, Hygiene and Specialty Nonwovens and Films Business with Glatfelter Page 1

Berry Global Group, Inc. (NYSE:BERY) and Glatfelter Corporation (NYSE:GLT) today announced the date of the special meeting of Glatfelter shareholders to seek, among other things, approval of the issuance of additional shares of Glatfelter common stock and an amendment to Glatfelter’s bylaws to increase the number of authorized shares of Glatfelter common stock and to effect a reverse stock split of Glatfelter’s common stock. Approval of these matters by Glatfelter shareholders will be an important milestone in the proposed merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films business with Glatfelter in a reverse Morris trust transaction. As previously announced, upon completion of the transaction, the combined company will be renamed Magnera Corporation.

The special meeting of Glatfelter shareholders will be held online via live audio webcast at www.virtualshareholdermeeting.com/GLT2024SM on October 23, 2024 at 8:00 a.m. Eastern Daylight Time.