In recognition of its economic, environmental and social performance, MeadWestvaco Corporation (NYSE: MWV) today announced that it has been selected as a member of the 2007/2008 Dow Jones Sustainability World Index (DJSI World). The packaging leader is included on the prestigious Index for the fourth consecutive year based on its success integrating environmental sustainability and social values into core business objectives and economic performance.

MeadWestvaco also ranked best-in-class in the Containers & Packaging group for the third straight year, demonstrating outstanding leadership in criteria such as risk and crisis management and standards for suppliers.

?MeadWestvaco's ongoing commitment to stewardship and sustainability inspires innovative solutions and business practices that benefit our customers and consumers as well as our shareholders,? said John A. Luke, Jr., chairman and chief executive officer of MeadWestvaco. ?Being included on the Dow Jones Sustainability World Index is further demonstration that we are delivering on our mission to create value for our stakeholders while fulfilling our environmental, social and economic responsibilities.?

Launched in 1999, the Dow Jones Sustainability Indexes are the first global indexes tracking the financial performance of the leading sustainability-driven companies worldwide. The DJSI World comprises the leading companies in terms of sustainability around the world. It captures the top 10 percent based on long-term economic, environmental and social criteria out of the biggest 2,500 companies worldwide.

To learn more about MeadWestvaco's stewardship and sustainability programs please visit: www.meadwestvaco.com/sustainability.nsf.

About MeadWestvaco

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 World Index for the fourth consecutive year. For more information, please visit us at www.meadwestvaco.com.

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MeadWestvaco Corporation
Alison von Puschendorf, 804-327-7284