RICHMOND, VA (April 9, 2008)—MeadWestvaco Corporation (NYSE: MWV) will release its results for the first quarter 2008 on Wednesday, April 30, 2008, before the market opens. The news release for first quarter results will be available on MWV’s website at www.meadwestvaco.com.

The company will broadcast its first quarter analyst conference call on Wednesday, April 30, 2008, at 10:00 a.m. (EDT) 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. Please 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. (EST) on April 30, 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 MWV’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. Please go to the website at least one hour prior to the call to register, download and install any necessary audio software.

About MWV

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 & Office Products and Specialty Chemicals businesses, and operates in more than 30 countries. MWV 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, please visit us at www.meadwestvaco.com.

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