Post Holdings Schedules Second Quarter 2012 Conference Call

St. Louis, U.S.A., May 15, 2012 (Thomson Reuters ONE via COMTEX) –St. Louis, Missouri -May 15, 2012 — Post Holdings, Inc. (NYSE: POST) invites investors to listen to a live broadcast of the Company’s conference call to discuss second quarter 2012 financial results on Monday, May 21, 2012 at 5:00 p.m. Eastern Time. Participating in the call will be Terence E. Block, President and Chief Operating Officer, and Robert V. Vitale, Chief Financial Officer.

The call will be broadcast over the Internet and can be accessed by visiting the investor relations section of the Company’s website at www.postfoods.com. Participants may join the conference call by dialing (888) 679-8033 in the United States and (617) 213-4846 outside the United States. The conference identification number for all participants is 29342145.

For those unable to participate during the live call and webcast, a replay will be available on the Company’s website until June 5, 2012.

About Post Holdings, Inc.

Post Holdings, Inc. is the parent company of Post Foods, LLC. Post has enriched the lives of consumers, bringing quality foods to the breakfast table since the company’s founding in 1897. Post’s products are generally sold to supermarket chains, wholesalers, supercenters, club stores, mass merchandisers, distributors, convenience stores and the foodservice channel in North America. Those products are manufactured at four facilities located in Battle Creek, Michigan; Jonesboro, Arkansas; Modesto, California; and Niagara Falls, Ontario. Post’s portfolio of brands includes diverse offerings to meet the taste and nutritional needs of all families, including such favorites as Honey Bunches of Oats®, Pebbles®, Great Grains®, Post Shredded Wheat®, Post® Raisin Bran, Grape-Nuts®, and Honeycomb®. Post is dedicated to health and wellness, offering consumers a variety of cereal choices to meet their nutritional needs from whole grain and fiber to lower sugar offerings. For more information, visit www.postfoods.com.

This announcement is distributed by Thomson Reuters on behalf of Thomson Reuters clients.

The owner of this announcement warrants that:

(i) the releases contained herein are protected by copyright and other applicable laws; and

(ii) they are solely responsible for the content, accuracy and originality of the

information contained therein.