The review of companies is based on a thorough analysis of corporate economic, environmental and social performance, assessing such criteria as corporate governance, risk management, climate change mitigation, supply chain standards, labor practices and more.

"At Plum Creek, we believe that our efforts to be socially, environmentally and economically responsible contribute to our overall business success, and we are pleased that our commitment to sustainability has been reinforced through our inclusion in the Dow Jones Sustainability Index," said Rick Holley, Plum Creek's president and chief executive officer.

"Plum Creek has long conducted its business with a strong commitment to sustainability," Holley continued. "In 1999, Plum Creek was the first company to have all of its lands third-party certified by PricewaterhouseCoopers to the standards of the Sustainable Forestry Initiative®. Today, Plum Creek continues this commitment and looks forward to helping address global sustainability concerns through carbon sequestration initiatives and by working to supply renewable energy markets."

Plum Creek is the largest and most geographically diverse private landowner in the nation with more than 7 million acres of timberlands in major timber producing regions of the United States and wood products manufacturing facilities in the Northwest. For more information, visit www.plumcreek.com.

The Dow Jones Sustainability Indexes track the financial performance of the leading sustainability-driven companies worldwide. Based on the cooperation 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 www.sustainability-indexes.com.

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