Exhibit 99.1 WAUSAU PAPER 2004 EARNINGS INCREASE 29 PERCENT MOSINEE, WIS..JAN. 26, 2005..Wausau Paper (NYSE:WPP) today reported fourth-quarter earnings of $5.1 million, or $0.10 per diluted share, compared with $5.3 million, or $0.10 per diluted share, in the fourth quarter of 2003. Fourth-quarter 2004 earnings include after-tax losses of $0.02 per diluted share related to the start-up and operation of Printing & Writing's newly acquired Brainerd mill, and stock incentive charges of $0.01 per diluted share. Prior-year fourth-quarter earnings included stock incentive charges of $0.01 per diluted share. Net sales increased 10 percent to $262.4 million from $239.3 million last year while shipments increased 3 percent. Average selling price improved in each of the company's three business segments with the most significant gains occurring within Towel & Tissue and Specialty Products. Net earnings for the year increased 29 percent to $20.4 million, or $0.39 per diluted share, from $15.9 million, or $0.31 per diluted share, in 2003. Net sales increased 7 percent to $1,040.7 million from $971.4 million last year while shipments increased 2 percent. Current-year results include after-tax losses of $0.02 per diluted share related to the start-up and operation of the Brainerd mill and stock incentive charges of $0.03 per diluted share. Prior- year earnings included stock incentive charges of $0.02 per diluted share. "Wausau Paper made strong progress in 2004 despite only modest improvement in market conditions," commented Thomas J. Howatt, president and CEO. "Full-year earnings increased nearly 30 percent, with profit improvements in two of our three business segments, and net sales exceeded $1 billion for the first time in company history. Much of this improvement can be attributed to continuing progress in our strategic initiatives - new product development, pursuit of niche markets, operational excellence, and benchmark service to our customers," Mr. Howatt continued. "Revenues from products developed within the last three years substantially exceeded our corporate goal of 25 percent; productivity increased 2 percent, double our goal for the year; and cost-reduction results exceeded our goal of 2 percent of prior year cost of sales." In the fourth quarter, Specialty Products achieved its 10th consecutive quarter of year-over-year improvement with operating profits of $6.4 million, more than double the $2.6 million earned a year ago. Net sales and shipments increased 13 percent and 4 percent, respectively. "Selling price increases, sales mix improvements and operational efficiency gains helped drive quarterly profits to their highest level in more than five years," Mr. Howatt said. "Crisp execution over the last three years has created strong momentum, positioning Specialty Products as a solid profit contributor." Printing & Writing reported fourth-quarter operating profits of $0.4 million, compared with $3.4 million last year. Current-year results included fiber and energy cost increases of more than $4 million and pre-tax operating losses of $1.9 million related to the mid-November start-up and fourth-quarter operation of the Brainerd mill. Net sales and shipments increased 8 percent and 5 percent, respectively. "Despite soft fourth-quarter demand and highly competitive pricing, Printing & Writing gained share in its target markets, with consumer products and premium paper shipments increasing 32 percent and 12 percent, respectively," said Mr. Howatt. "While quarterly profits were unfavorably affected by start-up expenses, the acquisition of the Brainerd mill will allow us to expand our sales of higher-margin premium papers and improve long-term profitability." Towel & Tissue reported fourth-quarter operating profits of $7.9 million, compared with $8.7 million last year. Net sales increased 8 percent while shipments declined 2 percent. "Selling price increases and mix improvements could only partially offset higher costs in the quarter including wastepaper, purchased paper, and downtime associated with the planned replacement of a paper machine hood at the Middletown mill," Mr. Howatt explained. For the year, net sales and shipments increased 6 percent and 1 percent, respectively. "Shipments of our higher-margin value-added products increased 11 percent for the year," commented Mr. Howatt. "With only modest growth in the away-from-home towel and tissue market, this increase demonstrates the value of our niche-market focus." Commenting on the outlook for 2005, Mr. Howatt said, "Market conditions remain mixed with uncoated freesheet demand lagging towel and tissue and specialty markets. We have proven our ability to gain market share and increase earnings in challenging market conditions and will once again leverage our strategic initiatives to drive improvement and fuel growth. Despite expected higher fiber prices and natural gas costs well above historical averages, we expect first quarter earnings to modestly exceed prior year results of $0.07 per share, assuming a first quarter impact from Brainerd operations comparable to the fourth quarter." Wausau Paper's fourth-quarter conference call is scheduled for 11:00 a.m. (EST) on Thursday, January 27, and can be accessed through the Company's web site at www.wausaupaper.com under "Investor Information." A replay of the webcast will be available at the same site through February 3. 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 in Item 1 of the Company's Form 10-K for the year ended December 31, 2003. The Company assumes no obligation to update or supplement forward- looking statements that become untrue because of subsequent events. (tables follow) WAUSAU PAPER CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (in thousands, except share amounts) CONDENSED CONSOLIDATED STATEMENTS Three Months Twelve Months OF OPERATIONS Ended December 31, (unaudited) Ended December 31, 2004 2003 2004(UNAUDITED) 2003 Net Sales $ 262,365 $ 239,256 $ 1,040,717 $ 971,444 Cost of Sales 232,103 210,773 923,176 868,547 Gross Profit 30,262 28,483 117,541 102,897 Selling & Administrative Expense 20,021 17,530 75,817 67,619 Operating Profit 10,241 10,953 41,724 35,278 Interest Expense (2,600) (2,580) (10,285) (10,188) Other Income / (Expense), Net 456 71 939 90 Earnings Before Income Taxes 8,097 8,444 32,378 25,180 Provision for Income Taxes 3,001 3,125 11,985 9,317 Net Earnings $ 5,096 $ 5,319 $ 20,393 $ 15,863 Net Earnings Per Share-Basic $ 0.10 $ 0.10 $ 0.39 $ 0.31 Net Earnings Per Share-Diluted $ 0.10 $ 0.10 $ 0.39 $ 0.31 Weighted Average Shares Outstanding-Basic 51,687,000 51,556,000 51,662,000 51,549,000 Weighted Average Shares Outstanding-Diluted 52,033,000 51,732,000 51,937,000 51,663,000 CONDENSED CONSOLIDATED BALANCE SHEETS DECEMBER 31, December 31, 2004(UNAUDITED) 2003 Current Assets $ 287,292 $ 251,418 Property, Plant & Equipment, Net 551,160 565,722 Other Assets 43,782 40,960 Total Assets $ 882,234 $ 858,100 Current Liabilities $ 147,750 $ 115,004 Long-term Debt 161,833 162,174 Other Liabilities 215,559 230,606 Stockholders' Equity 357,092 350,316 Total Liabilities & Stockholders' Equity $ 882,234 $ 858,100 CONDENSED CONSOLIDATED STATEMENTS Twelve Months OF CASH FLOW Ended December 31, 2004(UNAUDITED) 2003 Net Cash Provided by Operating Activities $ 70,737 $ 63,105 Cash Provided by (Used in) Investing Activities: Capital Expenditures (29,565) (24,261) Acquisitions (9,935) (8,518) Proceeds on Property, Plant & Equipment Disposals 45 13 (39,455) (32,766) Cash Provided by (Used in) Financing Activities: Borrowings Under Credit Agreement 500 0 Payments Under Capital Lease Obligation (112) (89) Dividends Paid (17,560) (17,527) Proceeds from Stock Option Exercises 1,499 199 (15,673) (17,417) Net Increase in Cash and Cash Equivalents $ 15,609 $ 12,922 Note 1. Effective March 3, 2003, the Company acquired certain assets of a laminated papers producer. The acquisition was accounted for as a purchase business combination and, accordingly, the purchase price has been allocated using the fair values of the acquired receivables, inventory, machinery and equipment, and identifiable intangible assets. No goodwill was recorded as a result of this acquisition. The acquired assets are included in the Printing & Writing business segment. Note 2. During the second quarter of 2003, the Company's Towel & Tissue Group reached a settlement of all claims of the parties in its previously announced patent litigation. As a result of the settlement, the Company recognized $4.2 million in pre-tax income as a fee for licensing certain patented dispenser technologies. Note 3. On October 21, 2004, the Company acquired the assets of the Brainerd, Minnesota paper mill of the Missota Paper Company, LLC, for approximately $9.9 million. The purchase price has been allocated using the fair values of the acquired property, plant, and equipment. The Company assumed no liabilities of the mill. No goodwill or other intangible assets resulted from the transaction. The acquired assets are included in the Printing & Writing business segment. Note 4. Interim Segment Information The Company's operations are classified into three principal reportable segments: Printing & Writing, Specialty Products and Towel & Tissue, each providing different products. Separate management of each segment is required because each business unit is subject to different marketing, production and technology strategies. Printing & Writing produces a broad line of premium printing and writing grades at manufacturing facilities in Brokaw, Wisconsin; Groveton, New Hampshire; and Brainerd, Minnesota. Printing & Writing also includes two converting facilities that produce laminated roll wrap and related specialty finishing and packaging products, and a converting facility that converts printing and writing grades. Specialty Products produces specialty papers at its manufacturing facilities in Rhinelander, Wisconsin; Mosinee, Wisconsin; and Jay, Maine. Towel & Tissue produces a complete line of towel and tissue products that are marketed along with soap and dispensing systems for the "away-from-home" market. Towel & Tissue operates a paper mill in Middletown, Ohio, and a converting facility in Harrodsburg, Kentucky. Sales, operating profit, and asset information by segment is as follows: (in thousands, except ton data) DECEMBER 31, December 31, 2004(UNAUDITED) 2003 Segment Assets Printing & Writing $ 299,694 $ 283,711 Specialty Products 324,408 334,079 Towel & Tissue 171,080 165,199 Corporate & Unallocated* 87,052 75,111 $ 882,234 $ 858,100 Three Months Twelve Months Ended December 31,(unaudited) Ended December 31, 2004 2003 2004(UNAUDITED) 2003 Net Sales External Customers Printing & Writing $ 100,987 $ 93,896 $ 404,859 $ 395,836 Specialty Products 102,153 90,585 410,206 362,935 Towel & Tissue 59,225 54,775 225,652 212,673 $ 262,365 $ 239,256 $1,040,717 $ 971,444 Operating Profit Printing & Writing $ 392 $ 3,425 $ 10,038 $ 12,880 Specialty Products 6,404 2,566 18,434 6,586 Towel & Tissue 7,861 8,669 29,148 28,691 Total Reportable Segment Operating Profit 14,657 14,660 57,620 48,157 Corporate & Eliminations (4,416) (3,707) (15,896) (12,879) Interest Expense (2,600) (2,580) (10,285) (10,188) Other Income/(Expense), Net 456 71 939 90 Earnings Before Income Taxes $ 8,097 $ 8,444 $ 32,378 $ 25,180 Three Months Twelve Months Ended December 31,(unaudited) Ended December 31, 2004 2003 2004(UNAUDITED) 2003 Depreciation, Depletion and Amortization Printing & Writing $ 4,214 $ 4,255 $ 16,682 $ 17,211 Specialty Products 5,962 6,086 23,917 24,613 Towel & Tissue 4,627 4,574 18,177 18,218 Corporate & Unallocated 310 215 1,189 781 $ 15,113 $ 15,130 $ 59,965 $ 60,823 Tons Sold Printing & Writing 89,114 85,145 362,265 359,712 Specialty Products 85,772 82,869 348,887 334,183 Towel & Tissue 38,311 39,126 151,903 150,845 213,197 207,140 863,055 844,740 <FN> *Segment assets do not include intersegment accounts receivable, cash, deferred tax assets and certain other assets which are not identifiable with the segments.