Domtar Co-Sponsors the Rainforest Alliance's 25th Anniversary Gala

Milestone Celebration Highlights Environmental Accomplishments, Push for Sustainability

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(NYSE: UFS) (TSX: UFS)

MONTREAL, May 15, 2012 /CNW Telbec/ - To help celebrate 25 years of the Rainforest Alliance's achievements, Domtar Corporation (NYSE: UFS) (TSX: UFS) today announced it will co-sponsor the sustainability organization's 25^th anniversary gala on May 16 in New York City.

The annual dinner and award ceremony will commemorate some of the Rainforest Alliance's biggest triumphs since pioneering the concept of responsible forestry certification. Those include:

• Conserving more than 170 million acres of forest and farmlands in over 100 countries;
• Improving the lives of more than 9.5 million people worldwide, including farmers, forest managers, workers and their families;
• Engaging with more than 490,000 agriculture, forestry and tourism operations; and
• Introducing countless consumers to Rainforest Alliance Certified™ products. That includes extensive work with Domtar, whose papers have set the industry standard for displaying the Forest Stewardship Council™ (FSC^®) label and the Rainforest Alliance Certified seal.

Domtar has worked with the Rainforest Alliance to ensure that 28 of the company's pulp and paper mills and converting and distribution facilities now meet FSC standards. Nearly 20 percent of Domtar's paper products have been FSC-certified while, across America, the FSC estimates that only 4 to 6 percent of paper products earn that distinction.

"After all our hard work over the past 25 years, it's important for us to recognize companies for their demonstrated commitments to sustainability, and that list includes Domtar" said Tensie Whelan, president of the Rainforest Alliance. "We've worked with Domtar for more than a decade, and we're proud of how they have raised the bar for the paper industry and set an example for encouraging environmental responsibility."

Proceeds from the gala will benefit the Rainforest Alliance's comprehensive sustainability initiatives, which help ensure sustainable livelihoods and conserve biodiversity. This marks the seventh year Domtar has sponsored the gala, one of the ways Domtar has teamed up with the Rainforest Alliance to encourage responsible paper production and fiber sourcing.

"We're proud to be at the forefront of the responsible production and use of forest products, and we're excited for both the gala, as well as a workshop beforehand that will bring together leaders in sustainable business," said Lewis Fix, Domtar Vice-President of Sustainable Business and Brand Management. "We're looking forward to saluting some of this year's remarkable achievements, and we also salute the Rainforest Alliance for 25 years of accomplishments."

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About Domtar
Domtar Corporation (NYSE: UFS) (TSX: UFS) designs, manufactures, markets and distributes a wide variety of fiber-based products including communication papers, specialty and packaging papers and adult incontinence products. The foundation of its business is a network of world class wood fiber converting assets that produce papergrade, fluff and specialty pulps. The majority of its pulp production is consumed internally to manufacture paper and consumer products. Domtar is the largest integrated marketer of uncoated freesheet paper in North America with recognized brands such as Cougar®, Lynx^® Opaque Ultra, Husky^® Opaque Offset, First Choice® and Domtar EarthChoice^®. Domtar is also a leading marketer and producer of a complete line of incontinence care products marketed primarily under the Attends^® brand name. Domtar owns and operates Ariva^TM, an extensive network of strategically located paper and printing supplies distribution facilities. In 2011, Domtar had sales of US$5.6 billion from nearly 50 countries. The Company employs approximately 9,100 people. To learn more, visit www.domtar.com.