Wausau Paper to Release 2006 First-Quarter Financial Results on April 25

MOSINEE, Wis.–(BUSINESS WIRE)–April 6, 2006–Wausau Paper (NYSE:WPP) will release 2006 first-quarter financial results on Tuesday, April 25, after the closing of the New York Stock Exchange. The company will hold a Webcast to discuss earnings and current market conditions at 11 a.m. (EDT) on Wednesday, April 26.

All interested parties are invited to listen to the Webcast live via the company’s Internet site at http://www.wausaupaper.com under “Investor Information.” A replay of the call will also be available on the Web site from 1:30 p.m. (EDT) on April 26 until midnight May 3.

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

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