Wausau Paper Appoints Dan Trettin as Senior Vice President – Printing & Writing; Names Al Davis as Executive Vice President – Specialty Products

MOSINEE, Wis.–(BUSINESS WIRE)–Oct. 31, 2006–Wausau Paper (NYSE:WPP) today named Daniel R. Trettin as senior vice president – Printing & Writing, where he will be responsible for the daily operations and growth of that division. In addition, Albert K. Davis was promoted to executive vice president – Specialty Products, having previously held the position of senior vice president for that business unit. He also has managed Printing & Writing on an interim basis since February.

Trettin, 56, brings nearly 30 years of experience in the paper industry, holding prior positions at Georgia Pacific, Union Camp and Westvaco Corporation. During his 19-year career at Georgia Pacific he held various operations and corporate positions, including vice president-Wisconsin Operations where he was responsible for premium text and cover production facilities. Trettin served most recently as Georgia Pacific’s vice president-technology, responsible for the identification and implementation of new technology in support of strategic plans and achievement of operating goals. Trettin holds a PhD and MS from Lawrence University’s Institute of Paper Chemistry and a BS in Mechanical Engineering from Marquette University.

“We are pleased to have Dan join the Wausau Paper executive management team,” said Thomas J. Howatt, president and CEO. “His track record of achievement, breadth of industry experience, and strong leadership skills will assist us in achieving long-term return targets in our Printing & Writing business.”

Davis, 59, has served as senior vice president – Specialty Products for the past six years. As executive vice president he will continue to be responsible for strategic planning and operating performance of the Specialty Products business segment. Davis joined the company in 1981 and has held various leadership positions over the last 25 years.

“Al has done a tremendous job in returning our Printing & Writing business segment to a profitable position in addition to continuing to lead our Specialty Products business,” Howatt said. “His promotion recognizes his valuable contributions to Wausau Paper and our confidence in the future of Specialty Products. We are pleased to have him once again devoting his full attention to its profitable growth.”

Wausau Paper produces fine printing and writing papers, technical specialty papers, and “away-from-home” towel and tissue products.

Safe Harbor under the Private Securities Litigation Reform Act of 1995: The matters discussed in this news release concerning the company’s future performance or anticipated financial results are forward-looking statements and are made pursuant to the safe harbor provisions of the Securities Reform Act of 1995. Such statements involve risks and uncertainties which may cause results to differ materially from those set forth in these statements. Among other things, these risks and uncertainties include the strength of the economy and demand for paper products, increases in raw material and energy prices, manufacturing problems at company facilities, and other risks and assumptions described under “Information Concerning Forward-Looking Statements” in Item 7 and in Item 1A of the company’s Form 10-K for the year ended December 31, 2005. The company assumes no obligation to update or supplement forward-looking statements that become untrue because of subsequent events.

      CONTACT: Wausau Paper              Scott P. Doescher, 715-693-4470              Fax: 715-692-2082      SOURCE: Wausau Paper