Weyerhaeuser Company (NYSE: WY) today announced it has been named to two new Dow Jones Sustainability Indexes that track companies in terms of their economic, environmental and social performance.

  (Logo: http://www.newscom.com/cgi-bin/prnh/20040116/WYLOGO-a
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The only forest products company listed in the category of Basic Resources: Forestry & Paper, Weyerhaeuser is one of 111 firms -- 93 in the United States and 18 in Canada -- listed in the Dow Jones Sustainability North American Index. The DJSI United States is the U.S. subset of the DJSI North America.

"Sustainability is a core value at Weyerhaeuser," said Steven R. Rogel, chairman, president, and chief executive officer. "In all we do, from renewing our forests, to reducing the environmental footprint of our wood and paper manufacturing operations, to recovering paper for recycling, Weyerhaeuser strives to act sustainably."

Launched in 1999, the Dow Jones Sustainability indexes track the market performance of sustainability-driven companies worldwide. Selection of index components is based on an assessment of general and industry-specific criteria, and the analysis is externally audited. Weyerhaeuser was invited to take part in the DJSI review process by submitting an application and providing publicly available information.

"We're gratified to be a member of the Dow Jones Sustainability Index," Rogel said. "Third-party validation of our sustainability practices is important confirmation for our customers, employees, communities and shareholders that we are doing the right thing."

Weyerhaeuser Company, one of the world's largest integrated forest products companies, was incorporated in 1900. In 2004, sales were $22.7 billion. It has offices or operations in 19 countries, with customers worldwide. Weyerhaeuser is principally engaged in the growing and harvesting of timber; the manufacture, distribution and sale of forest products; and real estate construction, development and related activities. Additional information about Weyerhaeuser's businesses, products and practices is available at http://www.weyerhaeuser.com/ .

The Dow Jones Sustainability Indexes track the financial performance of the leading sustainability-driven companies worldwide. Based on the cooperation of Dow Jones Indexes, STOXX Limited and SAM Group, the indexes provide asset managers with reliable and objective benchmarks to manage sustainability portfolios. The indexes cover companies in terms of economic, environmental and social criteria. Full details about the design philosophy, review methodology and index components are available at http://www.sustainability-indexes.com/ .

   For more information contact:
   Media -- Frank Mendizabal, 253-924-3357
   Analysts -- Kathryn McAuley, 253-924-2058

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SOURCE: Weyerhaeuser Company

CONTACT: Media, Frank Mendizabal, +1-253-924-3357, or analysts, Kathryn
McAuley, +1-253-924-2058, both of Weyerhaeuser Company

Web site: http://www.sustainability-indexes.com/

Web site: http://www.weyerhaeuser.com/