Wausau Paper Introduces MicroBrite Technology for Ovenable Consumer Products and Commercial Applications

MOSINEE, Wis.–(BUSINESS WIRE)–April 16, 2008–Wausau Paper (NYSE:WPP) today announced the introduction of MicroBrite(TM) Technology – a thermal performance enhancing feature of its ProPly(R) and ProRedi(R) food packaging and food service papers for microwave, convection, and conventional oven applications. MicroBrite is designed to address the $3 billion flexible packaging segment of the snack foods industry and its growing need for non-charring paper products for single serving and portion control food packaging.

“The identification of new applications for existing products continues to drive innovation and access to expanding markets for our Specialty Products division. These mix enhancing opportunities are just the latest examples of value-added product development which differentiates Wausau Paper and amplifies the many competitive advantages we provide our customers,” remarked Thomas J. Howatt, Wausau Paper president and chief executive officer. “These products were created in concert with our commitment to provide the markets we serve with environmentally preferable choices in each of our three businesses. Equally as important, they will improve the performance of our customer’s converted products in these growing markets and the experience of commercial and retail end users.”

Wausau Paper Specialty Products offers a broad range of environmentally responsible specialty papers designed for high performance technical and packaging applications in the food service, personal care, consumer products, metal, and glass industries. For more information on the complete range of Wausau Paper Specialty Products, please contact Marketing Communications at 1-866-507-4689 or e-mail your inquires to Jim Cauley at jcauley@wausaupaper.com.

About Wausau Paper:

Wausau Paper, with record revenues of more than $1.2 billion in fiscal 2007, produces and markets fine printing and writing papers, technical specialty papers, and “away-from-home” towel and tissue products. To learn more about Wausau Paper visit: www.wausaupaper.com.

      CONTACT: Wausau Paper              Investor and Media Contact:              Perry Grueber, 715-692-2056              Director Investor Relations              Fax: 715-692-2020              pgrueber@wausaupaper.com      SOURCE: Wausau Paper