MeadWestvaco Corporation

Richmond, Virginia, USA, 02 January 2008 -– MeadWestvaco Corporation (NYSE: MWV) will release its results for the fourth quarter 2007 on 01 February 2008, before the market opens. The news release for fourth quarter results will be available on MeadWestvaco’s website at www.meadwestvaco.com.

The company will broadcast its fourth quarter analyst conference call on 01 February 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 fourth 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. Call to register at least 10 minutes before the conference call begins. A replay of the call will be available for one month via the telephone starting at 1:30 p.m. (Easter Time) on 01 February 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, look for the link to Investor Information, then Financial Calendar, to access the webcast. Please go to 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, personal care, home and garden, cosmetics, and healthcare industries. The company has market-leading positions in its Consumer & Office Products and Specialty Chemicals businesses, and operates in more than 30 countries. MeadWestvaco manages all of its forestlands in accordance with internationally recognized forest certification standards, and has been named to the Dow Jones Sustainability Index for the fourth consecutive year. For more information, visit www.meadwestvaco.com.