MeadWestvaco Corporation

Richmond, Virginia, USA, 09 April 2008 -— MeadWestvaco Corporation (NYSE: MWV) will release its results for the first quarter 2008 on 30 April 2008, before the market opens. The news release for first quarter results will be available on the company’s website at www.meadwestvaco.com.

The company will broadcast its first quarter analyst conference call on 30 April 2008, at 10:00 a.m. (Eastern Time) with access available via Internet and telephone. The teleconference is expected to last about one hour. John A. Luke, Jr., chairman and chief executive officer; James A. Buzzard, president; E. Mark Rajkowski, chief financial officer; and Jason Thompson, director, investor relations, will review the first quarter results. Following the review, questions will be taken from registered analysts and investors.

Investors may participate in the live conference call by dialing 1 (888) 423-3271 (toll-free domestic) or 1 (612) 332-0923 (international); passcode: MeadWestvaco. Participants should call to register at least 10 minutes before the conference call begins. A replay of the call will be available for one month via telephone, starting at 1:30 p.m. (Eastern Time) on 30 April, and can be accessed at 1 (800) 475-6701 (toll-free domestic) or 1 (320) 365-3844 (international); access code: 891607.

The live conference call and presentation slides may be accessed on MeadWestvaco’s website at www.meadwestvaco.com. After connecting to the home page, access the link to Investor Information, then Calendar of Events, and look for the link to the webcast. Participants should acces the website at least one hour before the call to register, download, and install any necessary audio software.

MeadWestvaco Corporation (NYSE: MWV) provides packaging solutions to many of the world’s most-admired brands in the food and beverage, media and entertainment, cosmetics and personal care, home and garden, and healthcare and pharmaceutical industries. The company has market-leading positions in its Consumer and Office Products and Specialty Chemicals businesses, and operates in more than 30 countries. The company manages all of its forestlands in accordance with internationally recognized forest certification standards, and has been named to the Dow Jones Sustainability World Index for the fourth consecutive year. For more information, visit us at www.meadwestvaco.com.