UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 [FEE REQUIRED] For the fiscal year ended August 31, 1997 [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED] For the transition period from __________ to __________ Commission File Number 0-7475 WAUSAU PAPER MILLS COMPANY (Exact name of registrant as specified in charter) One Clark's Island WISCONSIN P.O. Box 1408 (State of incorporation) Wausau, Wisconsin 54402-1408 39-0690900 (Address of principal executive office) (I.R.S. Employer Identification Number) Registrant's telephone number, including area code: 715-845-5266 Securities registered pursuant to Section 12(b) of the Act: None Securities registered pursuant to Section 12(g) of the Act: Common Stock, No Par Value (Title of each class) Indicate by check whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such report), and (2) has been subject to such filing requirements for the past 90 days. Yes X No ______ Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [ X ] As of October 1, 1997, the aggregate market value of the common stock shares held by non-affiliates was approximately $597,422,000. The number of common shares outstanding at October 1, 1997 was 36,514,972. DOCUMENTS INCORPORATED BY REFERENCE Proxy Statement for use in connection with 1997 annual meeting of shareholders (to the extent noted herein); Part III TABLE OF CONTENTS Page PART I Item 1. Business 1 Item 2. Properties 7 Item 3. Legal Proceedings 8 Item 4. Submission of Matters to a Vote of Security Holders 8 PART II Item 5. Market for the Registrant's Common Stock and Related Stockholder Matters 8 Item 6. Selected Financial Data 9 Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations 10 Item 8. Financial Statements and Supplementary Data 17 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosures 40 PART III Item 10. Directors and Executive Officers of the Registrant 40 Item 11. Executive Compensation 40 Item 12. Security Ownership of Certain Beneficial Owners and Management 40 Item 13. Certain Relationships and Related Transactions 40 PART IV Item 14. Exhibits, Financial Statement Schedules, and Reports on Form 8-K 41 Schedule II - Valuation and Qualifying Accounts 43 -i- PART I Item 1. BUSINESS. NATURE OF THE BUSINESS The company, incorporated in 1899 under the laws of the State of Wisconsin, manufactures and sells paper. The company is organized into a small corporate staff consisting of principal executive officers and two operating divisions: the Printing and Writing Division, consisting of a paper and pulp mill in Brokaw, Wisconsin and Wausau Papers of New Hampshire, Inc., a wholly-owned subsidiary which operates a paper mill in Groveton, New Hampshire; and the Technical Specialty Division, which consists of Rhinelander Paper Company, Inc., a wholly-owned subsidiary operating a paper mill in Rhinelander, Wisconsin, and Wausau Papers Otis Mill, Inc., a wholly-owned subsidiary which operates a paper mill in Jay, Maine. Unless stated otherwise, the terms "company" and "Wausau Papers" mean Wausau Paper Mills Company. The company's executive offices are located in Wausau, Wisconsin. The company's export sales are administered through Wausau Papers International, Inc., a wholly-owned subsidiary which acts as a foreign sales corporation (FSC). On August 24, 1997, Wausau Paper Mills Company, Mosinee Paper Corporation ("Mosinee") and WPM Holdings, Inc., a wholly-owned subsidiary of the company ("Merger Sub"), entered into an Agreement and Plan of Merger (the "Merger Agreement") pursuant to which Merger Sub will be merged with and into Mosinee (the "Merger") with Mosinee being the surviving corporation. Under the terms of the Merger Agreement, which was unanimously approved by the Boards of Directors of the company and Mosinee, each outstanding share of Mosinee common stock will be converted into the right to receive 1.4 shares of Wausau common stock, with cash paid in lieu of fractional shares. The Merger, which is subject to approval by the shareholders of both the company and Mosinee, regulatory approval and other customary conditions, will be accounted for as a pooling of interests and is expected to close by the end of calendar 1997. Mosinee manufactures, converts and sells paper products. Mosinee, one of the nation's largest producers of masking tape base, manufactures a broad range of highly engineered paper products. These include high-performance industrial papers chemically treated for wet strength, flame retardancy, anti-static, corrosion or grease resistance for various industries, such as automotive, housing, and food processing, as well as other specialty grades of paper, including decorative laminate papers, deep color tissue used in napkin and tablecloth stock and colored school construction paper. Other major products and processes include wax-laminate roll wrap, custom coating, laminating and converting. In addition, Mosinee produces "away-from-home" towel and tissue products from recycled material under Bay West's EcoSoft(tm) brand which are used in the washrooms of theme parks, hospitals, hotels, office buildings, factories, schools and restaurants nationwide. Mosinee had revenues of $314.5 million and net income of $26.9 million in 1996 and revenues of $163.5 million and net income of $16.2 million for the six months ended June 30, 1997. This report on Form 10-K does not reflect any effect the proposed merger with Mosinee may have on the company. -1- SEGMENT INFORMATION Paper manufacturing is the company's only line of business. PRINTING AND WRITING DIVISION The Printing and Writing Division manufactures fine printing, writing and specialty papers at the Brokaw, Wisconsin and Groveton, New Hampshire mills. The division's product lines include recycled products made with 20% of the total fiber content from post-consumer waste. The printing and writing papers are sold to paper distributors and converters throughout the United States, Canada and Mexico. Typical end uses for these fine papers include printed advertising, corporate external reports, office papers and converted products such as announcements and greeting card envelopes. The Printing and Writing Division was formed in 1993 by combining the operations of the company's Brokaw Division and the manufacturing facility at Groveton, New Hampshire. The Groveton facility was purchased in April 1993, by the company's wholly-owned subsidiary Wausau Papers of New Hampshire, Inc. TECHNICAL SPECIALTY DIVISION The Technical Specialty Division manufactures lightweight, dense, technical specialty papers, which are primarily sold directly to converters and end users throughout the United States. International markets for the division's products include Canada, the Pacific Rim, Europe, Mexico and Central and South America. Typical end uses for these papers are pressure sensitive products, silicone coated products, medical packaging, food packaging, multiple laminated products, electrographics and imaging papers. Small volumes of yeast and lignosulfonates are also manufactured. These products are sold for use as food additives, pet food ingredients and for other end uses. The Technical Specialty Division was created in 1997 by combining the operations of the company's Rhinelander Division and the company's mill at Jay, Maine (the "Otis mill"). The assets and business of the Otis mill were acquired on May 12, 1997 by the company's newly formed wholly-owned subsidiary, Wausau Papers Otis Mill, Inc. This purchase expanded the company's technical specialty manufacturing capacity by 70,000 tons per year. EXPORT SALES Wausau Papers International, Inc. has been the commissioned sales agent for the export sales of the company since September 1, 1992. Wausau Papers International, Inc. has elected to be treated as a FSC for federal income tax purposes. On June 9, 1997, the company opened a regional sales office in Singapore. The Singapore office is used to service existing business in the Far East, as well as to pursue new business opportunities and relationships for both the Technical Specialty and Printing and Writing divisions. RAW MATERIALS Pulp is the basic raw material for paper production. Approximately 60% of the pulp consumed by the Brokaw mill is manufactured internally from aspen, which is in abundant supply. The -2- remaining 40% of required pulp at Brokaw and all of the required pulp at the Rhinelander, Groveton and Otis mills is purchased from pulp mills throughout the United States and Canada. Market pulp is in adequate supply and readily obtained from both domestic and foreign sources. The company may purchase small quantities of its pulp using futures contracts as a hedge against anticipated pulp price increases. Recycled, de-inked fiber with a high content of post-consumer waste is purchased from domestic suppliers as part of the fiber requirements for the Printing and Writing Division's recycled products. Recycled fiber is also in adequate supply and readily obtained. Various chemicals are used in the pulping and papermaking processes. These industrial chemicals are all available from a number of suppliers and are purchased at current market prices. ENERGY The company's paper mills require large amounts of electrical and steam energy which are adequately supplied by public utilities or generated at company operated facilities. The Brokaw mill operates a power plant which provides all of its steam requirements. The power plant is fueled by natural gas, which is in adequate supply, with fuel oil as an alternate energy source. The Brokaw mill purchases 100% of its electrical requirements from a public utility company. The Groveton and Otis mills operate power plants which provide 100% of the mills' steam requirements and a portion of their electrical needs. The power plants at both the Groveton and Otis mills operate on fuel oil which is in adequate supply. The Rhinelander mill maintains a power plant, fueled by coal and natural gas, capable of generating the mill's steam needs and nearly half of its electrical needs. The Rhinelander, Groveton and Otis mills purchase approximately 65%, 70% and 91% of their electrical needs, respectively, from public utility companies. The company generally purchases natural gas and fuel oil on a contract basis at prevailing market prices. Some natural gas and fuel oil purchase contracts may provide for variable prices or contain caps on prices of natural gas to be delivered at future dates. In July 1996, the company signed a natural gas transportation agreement with the Portland Natural Gas Transmission System (PNGTS). Under the terms of the long-term agreement, PNGTS will construct necessary gas supply and delivery equipment to the company's Groveton, New Hampshire mill thereby assuring natural gas delivery at market rates. The Groveton mill will be responsible for specified delivery charges under the terms of the contract. The company is progressing on schedule to begin transportation of natural gas to the Groveton mill in fiscal 1999. Capital improvements to the Groveton mill's power plant will be required to take advantage of this agreement. A reduction in the mill's energy costs is expected from the use of natural gas as an energy source instead of fuel oil. PATENTS AND TRADEMARKS The company develops and files trademarks and patents, as appropriate. The company does not own or hold material licenses, franchises or concessions. SEASONAL NATURE OF BUSINESS The markets for some of the grades of paper produced by the company tend to be somewhat seasonal. However, the marketing seasons for these grades are not necessarily the same. Overall, the company generally experiences lower sales in the second fiscal quarter, in -3- comparison to the rest of the year, primarily due to downtime typically taken by its converting customers during the holiday season and a general slowing of business activity at that time of year. WORKING CAPITAL As is customary in the paper industry, the company carries adequate amounts of raw materials and finished goods inventory to facilitate the manufacture and rapid delivery of paper products to its customers. The company will occasionally carry higher than normal quantities of pulp in anticipation of rising pulp prices. MAJOR CUSTOMERS Avery Dennison Corporation and ResourceNet International, a division of International Paper Company, accounted for 13.9% and 10.9% of consolidated net sales, respectively, in fiscal 1997. The loss of either customer would have an initial material adverse effect on the company; however, the company believes that, in the long-term, satisfactory alternative marketing arrangements could be made. BACKLOG The company's order backlog at August 31, 1997 amounted to $32,969,000, or over 2 weeks of operation. This is 29% higher on a tonnage basis than the backlog of orders of $26,749,000 or just over 2 weeks of operation at August 31, 1996. The backlog increase is due primarily to additional volume associated with the addition of the Otis mill. Backlog totals do not accurately represent the strength of the company's business activity as a significant volume of orders are shipped out of inventory promptly upon order receipt. This portion of the business is not reflected in the company's backlog totals. The entire backlog at August 31, 1997 is expected to be shipped during fiscal 1998. COMPETITIVE CONDITIONS The company competes in different markets within the paper industry. Each of its two divisions serves distinct market niches. The Printing and Writing Division produces fine printing and writing papers, of which over 60% are colored papers. Fine printing and writing sales are estimated to be less than 3% of the total market. The division's competitors range from small to large paper manufacturers and represent many different product lines. The division distributes its products primarily through paper wholesalers. The Technical Specialty Division produces technical specialty papers and is a leader in its markets. Market position varies by product segment and, thus, competition also includes small to large paper manufacturers. The Technical Specialty Division sells most of its products directly to converters and end users. The various markets for the products of the company are highly competitive, with competition based on service, quality and price. RESEARCH AND DEVELOPMENT Expenditures for product development were approximately $1,503,000 in 1997, $1,381,000 in 1996 and $1,219,000 in 1995. -4- ENVIRONMENT Wausau Papers has a strong commitment to protecting the environment. Like its competitors in the paper industry, the company faces increasing capital investments and operating costs to comply with expanding and more stringent environmental regulations. For example, the $14 million rebuild and expansion of the wastewater treatment plant at the Brokaw mill was completed in fiscal 1997. The company estimates that its capital expenditures for environmental purposes will be less than $2 million in fiscal 1998. The company has not been identified as a potentially responsible party at any site designated for remedial action under the federal Superfund law. The company is required to monitor conditions relative to its past waste disposal activities and may be required to take remedial action if conditions are discovered which warrant such action. The United States Environmental Protection Agency (EPA) has published draft rules under the Clean Water Act and the Clean Air Act which would impose new air and water quality standards for pulp and paper mills (the "Cluster Rules"). The definitive Cluster Rules, when finally promulgated, are expected to require compliance within three years after the date of adoption. Final promulgation of the rules for "paper grade sulfite" mills (which would include the Brokaw mill) is currently projected for late 1997. One major aspect of the proposed new regulations may require the company to adopt Total Chlorine Free (TCF) technology for the pulp bleaching operations at the Brokaw mill. In 1988, the company installed an oxygen delignification system which eliminated the use of elemental chlorine; however, chlorine compounds are used in other stages of the bleaching process at the Brokaw mill. Based on the company's preliminary estimates, if the Cluster Rules were adopted in substantially their present form, compliance with a TCF requirement for the Brokaw mill would require a capital expenditure of $3 to $5 million. The company believes that the costs for compliance with the proposed Cluster Rules and other environmental regulations will not have a material adverse effect on its liquidity, operations or consolidated financial condition. EMPLOYEES The company had 2,071 employees at August 31, 1997. The company has collective bargaining contracts with the United Paperworkers International Union and the National Conference of Firemen and Oiler Service Employees International Union covering approximately 1,617 employees. These contracts expire in May 2000, December 2000, May 2001 and March 2002 at the Otis, Rhinelander, Brokaw and Groveton mills, respectively. The company considers its relationship with its employees to be excellent. Eligible employees participate in retirement plans and group life, disability and medical insurance programs. -5- EXECUTIVE OFFICERS The executive officers of the company as of October 1, 1997, their ages, their positions and offices with the company and their principal occupations during the past five years are as follows: SAN W. ORR, JR., 56 Chairman of the Board of Directors since December, 1989, Chief Executive Officer from July, 1994 to December, 1995, and a director since April, 1970; also, Attorney, Estates of A.P. Woodson and Family; also, a director of Mosinee Paper Corporation, MDU Resources Group, Inc. and Marshall & Ilsley Corporation. DANIEL D. KING, 50 Director, President and Chief Executive Officer since December, 1995; Director, President and Chief Operating Officer July, 1994 to December, 1995; Senior Vice President, Printing and Writing Division, December, 1993 to July, 1994; Vice President and General Manager, Brokaw Division, September, 1990 to December, 1993. LARRY A. BAKER, 58 Senior Vice President, Administration since December, 1990; prior thereto, Vice President, Administration. STEVEN A. SCHMIDT, 43 Vice President, Finance, Secretary and Treasurer since June, 1993; Corporate Controller, August, 1992 to June, 1993; prior thereto, Plant Controller, Georgia Pacific Corporation, formerly Nekoosa Papers, Inc., March, 1989 to August, 1992. D. MICHAEL WILSON*, 35 Vice President and General Manager, Technical Specialty Division since April, 1996; prior thereto, Vice President of Marketing and Sales, Rexam Release, August, 1993 to April, 1996; General Manager, Laminex, Inc., April, 1991 to August, 1993. THOMAS J. HOWATT, 48 Vice President and General Manager, Printing and Writing Division since December, 1994; Vice President and General Manager, Groveton, April, 1993 to December, 1994; Vice President Operations, Brokaw Division, September, 1990 to April, 1993; prior thereto, Vice President, Administration, Brokaw Division. * Mr. Wilson resigned from the company effective October 24, 1997. All executive officers of the company are elected annually by the Board of Directors. -6- CAUTIONARY STATEMENT This Form 10-K, each of the company's annual reports to shareholders, Forms 10-K, 8-K and 10-Q, proxy statements, prospectuses and any other written or oral statement made by or on behalf of the company subsequent to the filing of this Form 10-K may include one or more "forward-looking statements" within the meaning of Sections 27A of the Securities Act of 1933 and 21E of the Securities Exchange Act of 1934 as enacted in the Private Securities Litigation Reform Act of 1995 (the "Reform Act"). In making forward-looking statements within the meaning of the Reform Act, the company undertakes no obligation to publicly update or revise any such statement. Forward-looking statements of the company are based on information available to the company as of the date of such statements and reflect the company's expectations as of such date, but are subject to risks and uncertainties that may cause actual results to vary materially. In addition to specific factors which may be described in connection with any of the company's forward-looking statements, factors which could cause actual results to differ materially include, but are not limited to the following: <bullet> Increased competition from either domestic or foreign paper producers or providers of alternatives to the company's products, including increases in competitive production capacity, resulting in sales declines from reduced shipment volume and/or lower net selling prices in order to maintain shipment volume. <bullet> Changes in demand for the company's products due to overall economic activity affecting the rate of consumption of the company's paper products, growth rates of the end markets for the company's products, technological or consumer preference changes or acceptance of the products by the markets served by the company. <bullet> Changes in the price of pulp, the company's main raw material. Approximately 80% of the company's pulp needs are purchased on the open market and price changes for pulp have a significant impact on the company's costs. Pulp price changes can occur due to worldwide consumption levels of pulp, pulp capacity additions, expansions or curtailments affecting the supply of pulp, inventory building or depletion at pulp consumer levels which affect short-term demand, and pulp producer cost changes related to wood availability, environmental issues, or other variables. <bullet> Unforeseen operational problems at any of the company's facilities causing significant lost production and/or cost issues. <bullet> Significant changes to the company's strategic plans such as a major acquisition or expansion, or failure to successfully execute major capital projects or other strategic plans. <bullet> Changes in laws or regulations which affect the company. -7- Item 2. PROPERTIES. The company's executive offices are located in Wausau, Wisconsin on property leased to the company under a lease which expires on December 31, 2005. There are renewal options for another 25 years. The company's Brokaw, Wisconsin mill operated at capacity during fiscal 1997, producing approximately 490 tons of finished paper per day. The mill facility provides approximately 60% of its pulp requirements from its own hardwood sulphite pulp mill. Brokaw mill facilities are situated on approximately 270 acres of land, all owned by the company. The Groveton, New Hampshire mill operated at capacity in fiscal 1997, producing approximately 290 tons of finished paper per day. The company's facilities occupy 124 acres of land all owned by the company's wholly-owned subsidiary, Wausau Papers of New Hampshire, Inc. The company's mill in Rhinelander, Wisconsin operated at capacity in fiscal 1997, producing approximately 440 tons of finished paper per day. Its facilities, which include a yeast and lignosulfonate processing plant capable of producing 21,000 pounds of torula yeast per day, occupy 72 acres of land, all owned by Rhinelander Paper Company, Inc. The company's Otis mill, located in Jay, Maine, was acquired from Rexam Inc. on May 12, 1997. The mill has operated at capacity since May 12, 1997, producing approximately 200 tons of finished paper per day. The Otis facility is located on 28 acres of land, all owned by Wausau Papers Otis Mill, Inc. The company owns approximately 43,500 acres of timberland in Wisconsin. The company believes the market value of these lands exceeds the August 31, 1997 book value of $1,405,000. Item 3. LEGAL PROCEEDINGS. Legal proceedings are discussed in Note 12 to the Consolidated Financial Statements. Item 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. No matters were submitted to a vote of shareholders during the fourth quarter of fiscal 1997. PART II Item 5. MARKET FOR THE REGISTRANT'S COMMON STOCK AND RELATED STOCKHOLDER MATTERS. The company's common stock trades on The Nasdaq National Market under the symbol "WSAU". The number of shareholders of record as of October 1, 1997 was 1,904. The company believes that there are approximately 8,200 additional beneficial owners whose shares are held in street name accounts or in other fiduciary capacities. The total estimated number of shareholders as of October 1, 1997 is 10,104. Information related to high and low closing prices and dividends is explained in detail in Item 8, Financial Statements and Supplementary Data. Dividend restrictions under certain loan covenants are explained in Note 4 to the Consolidated Financial Statements. -8- Item 6. SELECTED FINANCIAL DATA. For the years ended August 31, (all dollar amounts in thousands, except per share data) 1997 1996 1995 1994 1993 FINANCIAL RESULTS Net sales $570,258 $542,669 $515,743 $426,504 $381,816 Depreciation, depletion & amortization 26,586 23,140 19,940 17,635 15,445 Operating profit 81,520 69,523 52,754 69,990 62,910 Interest expense 3,520 2,786 1,688 1,958 1,272 Earnings before provision for income taxes 78,399 66,829 50,851 68,052 61,771 Earnings before cumulative effect of accounting change 48,899 41,229 31,251 42,052 38,371 Net earnings 48,899 41,229 31,251 43,052 22,621 Average number of shares outstanding 36,514,000 36,821,000 36,829,000 37,026,000 37,052,000 Cash dividends declared 9,129 8,104 7,385 6,487 5,686 Cash dividends paid 8,855 7,938 7,156 6,291 5,559 Capital expenditures 34,255 63,174 66,104 43,800 51,297 Tons of paper shipped 459,700 409,700 399,300 355,100 310,600 FINANCIAL CONDITION Working capital $ 87,114 $ 60,187 $ 67,266 $ 59,878 $57,007 Long-term debt 83,510 53,119 68,623 30,270 42,712 Shareholders' equity 303,554 264,711 236,689 214,818 183,139 Total assets 555,615 467,028 434,686 361,389 329,583 PER SHARE Earnings before cumulative effect of accounting change $ 1.34 $ 1.12 $ .85 $ 1.14 $ 1.04 Net earnings 1.34 1.12 .85 1.16 .61 Cash dividends declared .250 .220 .200 .174 .153 Shareholders' equity 8.31 7.19 6.43 5.80 4.94 Price range (low and high closing) 17.25-22.38 16.25-24.13 16.20-20.00 16.18-24.73 12.99-21.55 RATIOS/RETURNS Return on sales before cumulative effect of accounting change 8.6% 7.6% 6.1% 9.9% 10.0% Net return on sales 8.6% 7.6% 6.1% 10.1% 5.9% Return on average shareholders' equity before cumulative effect of accounting change 17.2% 16.4% 13.8% 21.2% 21.0% Net return on average shareholders' equity 17.2% 16.4% 13.8% 21.6% 13.0% Current assets to current liabilities 2.4 to 1 2.0 to 1 2.3 to 1 2.3 to 1 2.4 to 1 % of long-term debt to total capital 16.9% 13.0% 18.0% 9.6% 14.8% Tons of paper shipped per employee 243 233 231 210 206 EMPLOYMENT Average number of employees 1,890 1,756 1,727 1,692 1,510 <FN> All shares and per share data have been restated to reflect the five-for-four stock split in 1996, the 10% stock dividend in 1995 and the four-for-three stock splits in 1994 and 1993. This summary should be read in conjunction with the consolidated financial statements which follow. -9- Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS. RESULTS OF OPERATIONS OVERVIEW Wausau Papers posted record shipments, sales and earnings in fiscal 1997. The company set new production records and maintained full operations during a year of less than robust market conditions. Selling prices for the company's paper products came under pressure in fiscal 1997 due to competitive market conditions, resulting in lower average paper prices compared to the previous year. Despite downward pressure on selling prices, the company's overall margin improved as a result of lower pulp costs, mix enhancement, productivity gains from its paper mill operations and continued focus on cost reduction. Pulp prices remained relatively stable throughout most of fiscal 1997. This was a marked contrast to the major pulp cost swings experienced in recent years. In the fourth quarter of fiscal 1997, pulp prices did rise slightly due to increased demand for pulp. An additional price increase has been announced by some suppliers for November 1997, although it is uncertain whether there is sufficient strength in the pulp market to support an increase at this time. Fiscal 1997 was also a year of significant events for Wausau Papers. On May 12th, the company acquired the business and assets of Otis Specialty Papers, located in Jay, Maine, from Rexam Inc. for $55.1 million. Wausau Papers has combined the operations of its Rhinelander and Otis mills to create its newly formed Technical Specialty Division. The purchase included two paper machines producing high quality supercalendered kraft release paper, thermal paper and other technical specialty papers. This acquisition expanded the company's technical specialty capacity by 70,000 tons per year. Another major event occurred on August 25th when the company, in a joint news release with Mosinee Paper Corporation, announced plans to merge the two companies in an all-stock transaction. (For further information regarding the proposed merger refer to Item 1.) The merged companies, to be called Wausau-Mosinee Paper Corporation, will create an even stronger specialty paper producer, with combined revenues of approximately $1 billion and a strong balance sheet from which to pursue growth internally and through complementary niche acquisitions. Subject to the terms of the merger agreement, the company expects the merger will be completed before the end of calendar year 1997. Management's discussion and analysis of financial condition and results of operations does not reflect any effect on the company's operations or its capital resources and liquidity which may result from the proposed merger with Mosinee Paper Corporation. NET SALES Fiscal 1997 net sales were a record $570.2 million, 5% higher than fiscal 1996 net sales of $542.7 million. Net sales were $515.7 million in fiscal 1995. Shipments were also at a record level 459,700 tons in fiscal 1997, an increase of 12% from 409,700 tons shipped a year ago. Fiscal 1995 shipments were 399,300 tons. Fiscal 1997 net sales and shipments include nearly four months of contribution from the May 12, 1997 acquisition of Otis Specialty Papers. At the company's Technical Specialty Division, shipments increased 26% in fiscal 1997, with the Rhinelander mill realizing 10% growth in its shipments compared to a year ago. Shipments of the company's pressure sensitive products were strong despite very competitive market conditions, -10- increasing 24% at the Rhinelander mill and 42% division-wide. Fiscal 1997 average paper prices at the Technical Specialty Division were lower than a year ago, on average, as a result of competitive pressures from both domestic and foreign paper producers. The Technical Specialty Division has experienced some market softening in early fiscal 1998, however, continued growth in its pressure sensitive grades is expected in fiscal 1998. At the company's Printing and Writing Division, shipments increased 5%, compared to fiscal 1996 results. Healthy increases in the division's premium paper sales were realized in fiscal 1997, while reducing its mix of lower priced commodity grades. Mix enhancement will continue to be a major focus in fiscal 1998. Despite the mix improvement, downward pressure on paper prices, as a result of soft market conditions in fiscal 1997, resulted in significantly lower average prices for the company's printing and writing grades, compared to a year ago. Order backlog at the end of fiscal 1997 was $33.0 million, compared to order backlogs of $26.7 million and $25.0 million at August 31, 1996 and 1995, respectively. Order backlog at August 31, 1997, on a tonnage basis, was 29% higher than a year ago and 55% better than at the end of fiscal 1995. The increase in the company's order backlog at the end of fiscal 1997, compared to the prior year, is due primarily to the additional volume from the Otis mill which was not in last year's backlog. The company believes backlog totals do not indicate correctly the entire strength of its business, given that a high percentage of orders are shipped out of inventory promptly upon order receipt. In the fourth quarter of fiscal 1997, the company opened a regional sales office in Singapore. The Singapore office is used to service existing business in the Far East, as well as to pursue new business opportunities for the company's Printing and Writing and Technical Specialty divisions. GROSS PROFIT Gross profit increased to $114.0 million or 20.0% of net sales in fiscal 1997, compared to a fiscal 1996 gross profit of $99.3 million or 18.3% of net sales. Fiscal 1995 gross profit was $80.7 million or 15.7% of net sales. Gross profit margin improved in fiscal 1997 primarily as a result of higher sales volume, lower pulp costs, improved mix, productivity gains from paper mill operations and cost reduction efforts including improvements generated from the Total Quality Improvement Process. Market prices for pulp, the company's primary raw material used in manufacturing paper, were relatively stable throughout most of fiscal 1997. In fiscal 1997, the average list price of northern bleached softwood kraft, a frequently used benchmark pulp grade, decreased 18% from the fiscal 1996 average, compared to an 8% decrease in fiscal 1996 and a 55% increase in fiscal 1995. Pulp prices did increase slightly at the end of fiscal 1997 and an additional price increase has been announced by some suppliers for November 1997. Paper industry publications have expressed some doubt, however, as to whether there is sufficient strength in the pulp market to support the November price increase. The company's paper mills at its Printing and Writing Division operated at capacity in fiscal 1997. Paper production increased 5% over fiscal 1996 results due to productivity gains from capital and operational improvements. Paper production increased 3% in fiscal 1996 as a result of capital improvements and full operations, compared to fiscal 1995 when the Brokaw and Groveton paper mills operated at 98% and 96% of capacity, respectively. In November 1996, an operational problem occurred at the Brokaw pulp mill when, during start-up after a normal planned maintenance shutdown, cracks developed in two of the mill's four high-pressure cooking -11- vessels known as digesters. The digesters were out of operation until April 1997 for repairs, however, no reduction in paper production was incurred. The digester incident reduced the company's fiscal 1997 net earnings by $.06 per share as a result of curtailed pulp production and increased maintenance costs. Printing and Writing Division paper inventory levels rose slightly in fiscal 1997, primarily as a result of new product additions, increased production and less than robust market conditions. The Rhinelander and Otis mills at the company's Technical Specialty Division operated at capacity in fiscal 1997. Production increased 12% at the Rhinelander mill, compared to the previous year, primarily due to capital improvements and a strong mix of pressure sensitive products. Including operations from the Otis mill acquired on May 12, 1997, production at the Technical Specialty Division increased 27%, compared to fiscal 1996 results. Rhinelander's silicone coaters operated approximately 83% of available machine time in fiscal 1997, compared to 66% a year ago. Although shipments of silicone-coated products increased 14%, compared to fiscal 1996, the additional volume was not sufficient to sustain full operation on the coaters. Paper inventory levels at the Technical Specialty Division rose in fiscal 1997, primarily due to the addition of the Otis mill and strong operations at the Rhinelander mill. Maintenance and repair costs were $35.7 million in fiscal 1997, an increase of $4.1 million over fiscal 1996 maintenance costs of $31.6 million. Higher maintenance costs in fiscal 1997 are mainly due to the addition of the Otis mill in May 1997 and costs associated with the repairs to two pulp mill digesters at the Brokaw mill. Maintenance and repair costs were $30.2 million in fiscal 1995. LABOR A new five-year labor agreement with the United Paperworkers International Union at the Groveton mill was successfully negotiated in fiscal 1997. The new agreement became effective April 1, 1997 and includes a general wage increase of 3.5% in 1997, 3.0% in both 1998 and 1999, 3.5% in 2000 and 3.0% in 2001. SELLING, ADMINISTRATIVE AND RESEARCH EXPENSES Fiscal 1997 selling, administrative and research expenses were $32.5 million, compared to $29.8 million in fiscal 1996 and $28.0 million in fiscal 1995. Higher stock appreciation rights, dividend equivalent and stock option discount expense and the addition of the Otis mill are the primary reasons for the increased expenses in fiscal 1997, compared to the prior year. In fiscal 1997, $1.1 million in expense was recorded for stock appreciation rights, dividend equivalent and option discount expense, compared to $.1 million in fiscal 1996 and fiscal 1995. Wausau Paper Mills Company, like most companies today, is heavily dependent upon computer technology to effectively carry out its day to day operations. Until recently, most purchased and custom designed software was not year 2000 compliant, meaning, the software wasn't designed to properly handle dates beyond the year 1999. To ensure its computer systems will be ready to handle dates of the year 2000 and beyond, the company is well along in its overall plan to upgrade its software to become year 2000 compliant. This process is expected to be completed by the end of 1998. No material costs or effects on operations are expected from the upgrade process. -12- INTEREST INCOME AND EXPENSE Interest income in fiscal 1997 totaled $.2 million, compared to $.6 million in fiscal 1996 and $.2 million in fiscal 1995. The decrease in interest income in fiscal 1997 is due to more interest income in 1996 than in 1997 from a declining balance of undistributed proceeds from a $19 million industrial development bond issuance in August 1995. Bond proceeds were fully disbursed as of January 1997. Fiscal 1997 interest expense amounted to $3.5 million, compared to $2.8 million in fiscal 1996 and $1.7 million in fiscal 1995. Interest expense increased in fiscal 1997 due to higher average debt levels as a result of the acquisition of Otis Specialty Papers on May 12, 1997, which was entirely debt financed. Capitalized interest totaled $.2 million in fiscal 1997, $.9 million in fiscal 1996 and $.7 million in fiscal 1995. Capitalized interest decreased in fiscal 1997 due to several major capital projects which were at or nearing completion by the end of fiscal 1996, including a capacity expansion at the Rhinelander mill, installation of a fiber handling and processing system at the Brokaw mill and upgrades to the wastewater treatment plant at both Wisconsin mills. Other income of $.2 million was recorded in fiscal 1997, compared to expense of $.5 million in fiscal 1996 and fiscal 1995. INCOME TAXES The tax provision for fiscal 1997 was $29.5 million, for an effective tax rate of 37.6%. The effective rates for fiscal years 1996 and 1995 were 38.3% and 38.5%, respectively. The reduction in the fiscal 1997 effective tax rate, compared to the prior year, is due primarily to state apportionment changes and a decrease in the ratio of non-deductible items to income as a result of increased earnings. NET EARNINGS Net earnings were a record $48.9 million or $1.34 per share in fiscal 1997, an increase of 19% compared to net earnings of $41.2 million or $1.12 per share recorded in fiscal 1996. Fiscal 1995 net earnings were $31.3 million or $.85 per share. Fiscal 1997 net earnings were negatively impacted by $.06 per share due to several months of curtailed pulp production and increased maintenance costs associated with repairs to two digesters at the Brokaw mill. CAPITAL RESOURCES AND LIQUIDITY LONG-TERM DEBT Long-term debt increased $30.4 million in fiscal 1997 to $83.5 million at August 31, 1997. Long-term debt at the end of fiscal 1996 and fiscal 1995 was $53.1 million and $68.6 million, respectively. Long-term debt increased in fiscal 1997 as a result of the May 12, 1997 acquisition of Otis Specialty Papers for $55.1 million, which was entirely debt financed. The decrease in long-term debt in fiscal 1996 was the result of improved cash flow from operations. Long-term debt as a percent of capital was 16.9% at the end of fiscal 1997, compared to 13.0% in fiscal 1996 and 18.0% in fiscal 1995. At August 31, 1997, the company had $39.0 million outstanding under its revolving credit facility. Long-term debt at the end of fiscal 1997 also included $12.0 million in senior promissory -13- notes to Prudential Insurance Company of America and its subsidiaries, $19.0 million in industrial development bonds and $13.0 million in commercial paper. Long-term debt at the end of fiscal 1996 consisted primarily of $19.0 million in industrial development bonds, $18.0 million in senior promissory notes and $13.5 million outstanding under the revolving credit facility. CASH PROVIDED BY OPERATIONS Cash provided by operations was $67.6 million in fiscal 1997, down 15% from fiscal 1996 operating cash flow of $80.0 million. Fiscal 1995 cash provided by operations was $47.5 million. The reduced operating cash flow in fiscal 1997, compared to the previous year, is due mainly to an increase in accounts receivable, higher pulp inventories, and increased paper inventories at the Printing and Writing Division due to new product additions as well as a combination of strong production and moderate market conditions. The increase in cash provided by operations in fiscal 1996 was primarily the result of higher selling prices, a reduction in accounts receivable and smaller increases in inventory, compared to fiscal 1995. CAPITAL EXPENDITURES Fiscal 1997 capital expenditures totaled $34.3 million, compared to $63.2 million in fiscal 1996 and $66.1 million in fiscal 1995. Fiscal 1997 capital expenditures exclude $55.1 million for the acquisition of Otis Specialty Papers on May 12, 1997. The decrease in capital spending in fiscal 1997, compared to a year ago, is due to a $42 million capacity expansion at the Rhinelander mill which was implemented in the second and third quarters of fiscal 1996. Several major capital improvements were completed in fiscal 1997. A new saveall and broke metering system was installed at the Groveton mill, reducing operating costs and improving fiber yield. An upgrade to Groveton's turbine generator was also completed, lowering the mill's electrical costs. At the Rhinelander mill, a new rewinder was brought into service to support the mill's silicone coating operation. At Brokaw, a $14 million upgrade of its wastewater treatment facility was completed. In addition, a $6 million upgrade to the mill's wood processing facility was finished, resulting in improved wood yield, increased process efficiencies and reduced operating costs. The company's Board of Directors approved a number of major capital improvements in fiscal 1997, spending on which will continue into fiscal 1998. A $9 million pulp mill digester and process upgrade project was approved for the Brokaw mill. This project will increase pulp production capacity by approximately 15%, improve pulp quality and reduce operating costs. The new digester and process upgrade are expected to be completed in the fourth quarter of fiscal 1998. Over $8 million in capital improvements at the Groveton mill will be completed over the next two years to expand the mill's paper production capacity by 5%. The capital improvements include replacing the electric drive on No. 6 paper machine and upgrades to the wet end and dryer systems on No. 5 paper machine. These projects will allow both paper machines to operate at faster speeds while improving reliability and overall operating efficiency. In addition, a new fiber blending system will be installed at the Groveton mill to improve production efficiencies and flexibility while lowering overall material costs. At the Rhinelander mill, No. 7 and No. 9 paper machines, along with two rewinders, will be equipped with state-of-the-art web inspection and cleaning equipment, which will further enhance the quality of Rhinelander's pressure sensitive products. At the end of fiscal 1997, the company was committed to spend $34.0 million to complete these capital projects and others currently under construction. Capital expenditures are expected to be approximately $150 million over the next three years, -14- including about $50 million in fiscal 1998. FINANCING In fiscal 1997, the company amended its revolving credit facility with its four banks, increasing the credit line from $40 million to $105 million. The revolving credit line was increased to finance the acquisition of Otis Specialty Papers in May 1997. The amended agreement extends through March 29, 2001 at which time, or earlier at the company's option, the agreement converts to a one-year term loan. Interest rates on these borrowings are based on domestic rate loans, eurodollar loans, adjusted CD rate loans, offered loans or treasury rate loans. The company also maintains a commercial paper placement agreement, with one of its four major banks, which provides for the issuance of up to $40 million of unsecured debt obligations. The commercial paper placement agreement requires unused credit availability under the company's revolving credit agreement equal to the amount of outstanding commercial paper. On August 31, 1997, the company had a combined total of $53 million available for borrowing under its revolving credit and commercial paper placement agreements. In a separate agreement, one of the four banks participating in the revolving credit facility provides a $5 million uncommitted line of credit to the company. In addition, the company also has a $2 million short-term line of credit available. There were no borrowings against these lines at August 31, 1997. In June 1993, the company borrowed $30 million through the issuance of notes to Prudential Insurance Company of America and its subsidiaries. The loan was in the form of unsecured term notes bearing a fixed interest rate of 6.03%. Principal is payable in equal semi-annual installments, with the final payment due June 16, 2000. Proceeds from the notes were used to reduce borrowings from the revolving credit facility. In August 1995, the company obtained $19 million in industrial development bond financing to fund an upgrade of the Brokaw mill wastewater treatment plant, the construction of a new landfill and several other projects which qualify for this type of financing. The bonds, which were issued by a local governmental unit, mature on July 1, 2023 and have a floating interest rate commensurate with short-term municipal bond rates on similar issues. The interest rate can be converted to a fixed rate at the option of the company. Principal is due upon maturity or earlier at the company's option. Proceeds from the bond issue were held in a trust fund until they were drawn upon by the company as spending occurred on these projects. Bond proceeds were fully disbursed as of January 1997. Cash provided by operations and the revolving credit facility are expected to meet current and anticipated working capital needs and dividend requirements, as well as fund the company's planned capital expenditures. The company believes additional financing is readily available, should it be needed, to fund a major expansion or another acquisition. COMMON STOCK REPURCHASE On June 30, 1994, the company's Board of Directors authorized the repurchase of up to 1,856,250 shares of the company's common stock from time to time in the open market or through privately negotiated transactions at prevailing market prices. The company did not repurchase any shares of the company's common stock in fiscal 1997. In fiscal 1996, 369,500 shares were repurchased at market prices ranging from $16.750 per share to $18.125 per share. The company repurchased 308,938 shares in fiscal 1995 at market prices ranging from $16.550 per share to $17.091 per share and, in fiscal 1994, 123,750 shares were repurchased at market prices ranging from $17.364 per share to $17.909 per share. Shares and per share data have been restated to reflect -15- the five-for-four stock split and 10% stock dividend which occurred in January 1996 and January 1995, respectively. DIVIDENDS During fiscal 1997, the company's Board of Directors declared cash dividends of $.25 per share, an increase of 13.6% from the $.22 per share cash dividend declared in fiscal 1996. -16- Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA. REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS WIPFLI ULLRICH BERTELSON LLP To the Shareholders and Board of Directors Wausau Paper Mills Company Wausau, Wisconsin We have audited the accompanying consolidated balance sheets of Wausau Paper Mills Company and Subsidiaries as of August 31, 1997 and 1996, and the related consolidated statements of income, cash flows and shareholders' equity for each of the years in the three-year period ended August 31, 1997 and the supporting schedule listed in the accompanying index to financial statements. These financial statements and supporting schedule are the responsibility of the company's management. Our responsibility is to express an opinion on these financial statements and supporting schedule based on our audits. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and supporting schedule are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and supporting schedule. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Wausau Paper Mills Company and Subsidiaries at August 31, 1997 and 1996, and the results of its operations and cash flows for each of the years in the three-year period ended August 31, 1997, and the supporting schedule presents fairly the information required to be set forth therein, all in conformity with generally accepted accounting principles. We hereby consent to the incorporation by reference of this report in the Registration Statements on Form S-8 and amendments thereto filed with the Securities and Exchange Commission by Wausau Paper Mills Company on April 26, 1996, March 18, 1996, August 25, 1995, January 3, 1992 and January 27, 1988. Wipfli Ullrich Bertelson LLP WIPFLI ULLRICH BERTELSON LLP September 17, 1997 Wausau, Wisconsin -17- MANAGEMENT'S RESPONSIBILITY FOR FINANCIAL REPORTING The management of Wausau Paper Mills Company is responsible for the integrity and objectivity of the financial data contained in the financial statements and supporting schedule. The financial statements and supporting schedule have been prepared in conformity with generally accepted accounting principles appropriate under the circumstances and, where necessary, reflect informed judgments and estimates of the effects of certain events and transactions based on currently available information at the date the financial statements were prepared. The company's management depends on the company's system of internal accounting controls to assure itself of the reliability of the financial statements. The internal control system is designed to provide reasonable assurance, at appropriate cost, that assets are safeguarded and transactions are executed in accordance with management's authorizations and recorded properly to permit the preparation of financial statements in accordance with generally accepted accounting principles. Periodic reviews are made of internal controls by management and corrective action is taken if needed. The Board of Directors reviews and monitors financial statements through its audit committee. The audit committee meets with the independent public accountants and management to review internal accounting controls, auditing and financial reporting matters. The independent public accountants are engaged to provide an objective and independent review of the company's financial statements in accordance with generally accepted auditing standards and to express an opinion thereon. The report of the company's independent public accountants is included in this annual report. Daniel D. King Steven A. Schmidt DANIEL D. KING STEVEN A. SCHMIDT President and Chief Executive Vice President Finance, Officer Secretary and Treasurer -18- INDEX TO FINANCIAL STATEMENTS COVERED BY REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS Page Consolidated Statements of Income for the years ended August 31, 1997, 1996 and 1995 20 Consolidated Balance Sheets as of August 31, 1997 and 1996 21 Consolidated Statements of Shareholders' Equity for the years ended August 31, 1997, 1996 and 1995 23 Consolidated Statements of Cash Flows for the years ended August 31, 1997, 1996 and 1995 24 Notes to Consolidated Financial Statements 25 Schedule for the years ended August 31, 1997, 1996 and 1995 Schedule II - Valuation and Qualifying Accounts 43 All other schedules called for under Regulation S-X are not submitted because they are not applicable or not required, or because the required information is included in the Consolidated Financial Statements and Notes thereto. -19- WAUSAU PAPER MILLS COMPANY AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (all dollar amounts in thousands, For the years ended August 31, except per share data) 1997 1996 1995 Net Sales $570,258 $542,669 $515,743 Cost of products sold 456,239 443,383 434,995 Gross Profit 114,019 99,286 80,748 Selling, administrative and research expenses 32,499 29,763 27,994 Operating Profit 81,520 69,523 52,754 Interest expense ( 3,520) ( 2,786) ( 1,688) Interest income 172 562 239 Other 227 ( 470) ( 454) Earnings Before Income Taxes 78,399 66,829 50,851 Provision for income taxes 29,500 25,600 19,600 Net Earnings $ 48,899 $ 41,229 $ 31,251 Net Earnings Per Common Share $ 1.34 $ 1.12 $ 0.85 <FN> See accompanying notes to consolidated financial statements. All per share data has been restated to reflect a five-for-four stock split occurring in 1996 and a 10% stock dividend occurring in 1995. -20- WAUSAU PAPER MILLS COMPANY AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (all dollar amounts in thousands) As of August 31, 1997 1996 Assets Current Assets Cash and cash equivalents $ 5,297 $ 2,372 Accounts and notes receivable: Customers, less allowances of $5,875 in 1997 and $6,004 in 1996 46,904 36,814 Other 3,392 1,403 Inventories 84,112 70,443 Deferred income taxes 8,324 7,688 Other current assets 1,390 520 Total current assets 149,419 119,240 Property, Plant and Equipment Buildings 67,850 56,461 Machinery and equipment 487,136 420,958 554,986 477,419 Less: Accumulated depreciation (188,969) (164,983) 366,017 312,436 Land 2,285 1,982 Timberlands, net of depletion of $803 in 1997 and $745 in 1996 1,405 1,430 Capital additions in process 16,759 14,688 Total property, plant and equipment 386,466 330,536 Other Assets Cash restricted for capital additions 3,844 Deferred charges and other assets 19,730 13,408 Total other assets 19,730 17,252 Total Assets $555,615 $467,028 <FN> See accompanying notes to consolidated financial statements. -21- (all dollar amounts in thousands) As of August 31, 1997 1996 Liabilities Current Liabilities Current maturities of long-term debt $ 6,290 $ 6,340 Accounts payable 29,890 26,307 Accrued salaries and wages 10,980 9,197 Accrued and other liabilities 13,426 14,299 Accrued income taxes 1,719 2,910 Total current liabilities 62,305 59,053 Long-Term Liabilities Long-term debt 83,510 53,119 Deferred income taxes 49,301 43,469 Postretirement benefits 34,319 31,849 Pension 17,413 10,194 Other liabilities 5,213 4,633 Total long-term liabilities 189,756 143,264 Commitments and contingencies Shareholders' Equity Preferred stock: (500,000 shares authorized) no par value No shares issued Common stock: (100,000,000 shares authorized) no par value 38,840,403 shares issued - 1997 38,840,403 shares issued - 1996 139,284 139,155 Retained earnings 183,240 143,470 322,524 282,625 Less: Treasury stock at cost (2,325,431 shares in 1997 and 2,327,875 shares in 1996) ( 17,703) ( 17,721) Net loss not recognized as pension expense (net of deferred taxes) ( 1,267) ( 193) Total shareholders' equity 303,554 264,711 Total Liabilities and Shareholders' Equity $555,615 $467,028 -22- WAUSAU PAPER MILLS COMPANY AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (all dollar amounts Common Stock Treasury Stock in thousands) Common Total Stock- Share- Shares Retained Net Pension Shares holder's Issued Amount Earnings Shares Amount Adjustment Outstanding Equity Balance August 31, 1994 28,248,240 $ 80,380 $143,424 (1,390,210) ($ 7,604) ($ 1,382) 26,858,030 $214,818 Net earnings, 1995 31,251 31,251 Cash dividends declared ( 7,385) ( 7,385) 10% stock dividend 2,824,083 56,945 ( 56,945) ( 144,856) 2,679,227 Purchases of treasury shares ( 226,500) ( 5,222) ( 226,500)( 5,222) Stock options exercised 872 153,130 1,174 153,130 2,046 Tax benefit related to stock options 587 587 Change in unrecognized pension expense (net of deferred taxes) 594 594 Balance August 31, 1995 31,072,323 $138,784 $110,345 (1,608,436) ($ 11,652) ($ 788) 29,463,887 $236,689 Net earnings, 1996 41,229 41,229 Cash dividends declared ( 8,104) ( 8,104) Five-for-four stock split 7,768,080 ( 402,343) 7,365,737 Purchases of treasury shares ( 369,500) ( 6,376) ( 369,500) ( 6,376) Stock options exercised ( 10) 52,404 307 52,404 297 Tax benefit related to stock options 351 351 Stock option discount (net of deferred taxes) 30 30 Change in unrecognized pension expense (net of deferred taxes) 595 595 Balance August 31, 1996 38,840,403 $139,155 $143,470 (2,327,875) ( $17,721) ($ 193) 36,512,528 $264,711 Net earnings, 1997 48,899 48,899 Cash dividends declared ( 9,129) ( 9,129) Stock options exercised 14 2,444 18 2,444 32 Tax benefit related to stock options 5 5 Stock option discount (net of deferred taxes) 110 110 Change in unrecognized pension expense (net of deferred taxes) ( 1,074) ( 1,074) Balance August 31, 1997 38,840,403 $139,284 $183,240 (2,325,431) ($ 17,703) ( $1,267) 36,514,972 $303,554 <FN> See accompanying notes to consolidated financial statements. -23- WAUSAU PAPER MILLS COMPANY AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS (all dollar amounts in thousands) For the years ended August 31, 1997 1996 1995 Operating Activities: Net earnings $ 48,899 $ 41,229 $ 31,251 Noncash items: Provision for depreciation, depletion and amortization 26,586 23,140 19,940 Loss on property, plant and equipment disposals 494 1,259 585 Deferred income taxes 6,630 6,186 4,581 Changes in operating assets and liabilities: Receivables ( 3,752) 4,212 ( 7,320) Inventories ( 9,445) ( 2,969) ( 7,252) Other assets ( 7,059) ( 5,643) 521 Accounts payable and other liabilities 6,429 10,893 4,139 Accrued income taxes ( 1,191) 1,651 1,067 Net Cash Provided by Operating Activities 67,591 79,958 47,512 Investing Activities: Capital expenditures ( 36,715) ( 61,389) ( 64,479) Acquisition of Otis Specialty Papers ( 55,147) Proceeds from property, plant and equipment disposals 11 85 115 Net cash used from (invested in) funds restricted for capital additions 3,844 10,888 ( 14,732) Net Cash Used in Investing Activities ( 88,007) ( 50,416) ( 79,096) Financing Activities: Net borrowings (repayments) revolving credit facility 25,500 ( 700) 14,200 Net borrowings (repayments) of commercial paper 13,004 ( 8,300) 8,300 Repayment of long-term debt ( 340) ( 500) ( 451) Repayment of long-term notes ( 6,000) ( 6,000) Proceeds from issuance of long-term bonds 19,000 Dividends paid ( 8,855) ( 7,938) ( 7,156) Proceeds from stock option exercises 32 297 2,046 Payments for purchases of treasury stock ( 6,376) ( 5,222) Net Cash Provided by (Used in) Financing Activities 23,341 ( 29,517) 30,717 Net increase (decrease) in cash and cash equivalents 2,925 25 ( 867) Cash and cash equivalents at beginning of year 2,372 2,347 3,214 Cash and Cash Equivalents at End of Year $ 5,297 $ 2,372 $ 2,347 Supplemental Cash Flow Information: Interest paid (net of amount capitalized) $ 3,485 $ 2,793 $ 1,554 Income taxes paid 24,846 17,830 13,762 <FN> Noncash investing and financing activities: Capital lease obligations of $498 and $497 in 1996 and 1995, respectively, were incurred when the company entered into leases for new equipment. See accompanying notes to consolidated financial statements. -24- WAUSAU PAPER MILLS COMPANY AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS NOTE 1. SIGNIFICANT ACCOUNTING POLICIES CONSOLIDATION - The consolidated financial statements include the accounts of the company and its subsidiaries. All significant intercompany transactions, balances and profits have been eliminated in consolidation. REVENUE RECOGNITION - Revenue is recognized upon shipment of goods and transfer of title to the customer. The company grants credit to customers in the ordinary course of business. A substantial portion of the company's accounts receivable is with customers in various paper converting industries or the paper merchant business. Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers and their geographic dispersion. USE OF ESTIMATES IN PREPARATION OF CONSOLIDATED FINANCIAL STATEMENTS - The preparation of the accompanying consolidated financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. Actual results may differ from these estimates. CASH EQUIVALENTS - The company defines cash equivalents as highly liquid, short-term investments with an original maturity of three months or less. INVENTORIES - Pulpwood, finished paper products and the majority of raw materials are valued at the lower of cost, determined on the last-in, first-out (LIFO) method, or market. All other inventories are valued at the lower of average cost or market. PROPERTY, PLANT AND EQUIPMENT - Plant and equipment are stated at cost and are depreciated over the estimated useful lives of the assets using the straight-line method for financial statement purposes. The cost and related accumulated depreciation of all plant and equipment retired or otherwise disposed of are removed from the accounts and any resulting gains or losses are included in the consolidated statements of income. Buildings are depreciated over a 25- to 45-year period; machinery and equipment over a 4- to 20-year period. Maintenance and repair costs are charged to expense as incurred. Renewals and improvements which extend the useful lives of the assets are added to the plant and equipment accounts. Equipment financed by long-term leases, which in effect are installment purchases, have been recorded as assets and the related obligations as debt. Land is stated at cost. Timberlands are at cost less the pro rata cost of timber harvested since acquisition. Depletion expense is calculated using the block method, which groups timberland into logical management areas called "blocks" for which the cost basis is determinable. The annual depletion is determined by multiplying the per unit cost basis of the block of timber by the number of units harvested from the block during the year. INCOME TAXES - Deferred income taxes have been provided under the liability method. Deferred tax assets and liabilities are determined based upon the estimated future tax effects of -25- differences between the financial statement and tax bases of assets and liabilities, as measured by the current enacted tax rates. Deferred tax expense is the result of changes in the deferred tax asset and liability. EARNINGS PER SHARE - Earnings per common share are based on the weighted average number of common shares outstanding. Dilution of earnings per common share due to common stock equivalents (stock options) is negligible and, accordingly, no dilution has been reported. The Financial Accounting Standards Board has issued Statement of Financial Accounting Standards (SFAS) No. 128, "Earnings Per Share." This statement is effective for periods ending after December 15, 1997. If SFAS No. 128 had been adopted during 1997, the company's reported basic earnings per share and diluted earnings per share would have been unchanged at $1.34 per share. FUTURES CONTRACTS - The company utilizes futures contracts to hedge the price risk of anticipated purchases of pulp and natural gas. Because the pulp futures markets are very new and liquidity may be limited, the company has not hedged substantial quantities of pulp. Changes in the market value of the futures contracts are included as part of the acquisition price of pulp and natural gas and are realized when the finished paper is sold and the natural gas is consumed. NOTE 2. INVENTORIES (all dollar amounts in thousands) 1997 1996 Raw materials $ 32,983 $ 24,273 Supplies 16,611 16,549 Work in process and finished goods 47,418 41,630 Inventories at cost 97,012 82,452 LIFO reserve ( 12,900) ( 12,009) Net inventories $ 84,112 $ 70,443 Because various components of the inventories are valued by use of the last-in, first-out (LIFO) method, it is impracticable to segregate the LIFO reserve between raw materials and work in process and finished goods. NOTE 3. ACCRUED AND OTHER LIABILITIES (all dollar amounts in thousands) 1997 1996 Employee retirement plans $ 1,868 $ 2,142 Taxes other than income 1,149 1,633 Interest 491 483 Stock appreciation rights 3,314 2,408 Other 6,604 7,633 Total $13,426 $14,299 -26- NOTE 4. DEBT The company's long-term debt, excluding current maturities as of August 31, is outlined below: (all dollar amounts in thousands) 1997 1996 6.03% Senior promissory notes $12,000 $18,000 Industrial development bonds 19,000 19,000 Revolving credit facility agreement 39,000 13,500 Commercial paper 13,004 Fixed asset payables to be financed with revolving credit agreement 421 2,244 Capitalized leases 85 375 Totals $83,510 $53,119 The company has outstanding $18 million in unsecured senior promissory notes. Interest is payable quarterly on the outstanding balance at a rate of 6.03% per annum. Principal is payable in equal semi-annual installments, with the final payment due June 16, 2000. During 1995, the company borrowed $19 million related to industrial development bonds issued by a local governmental unit. The variable rate bonds require quarterly interest payments and had an interest rate of 3.65% at August 31, 1997. The company also pays fees for a bank letter of credit and remarketing services related to the bonds which it includes in net interest expense. The interest rate can be converted to a fixed rate, at the company's option, after which semi-annual interest payments will be required. The bonds mature on July 1, 2023. At August 31, 1997, all bond proceeds had been disbursed. The company maintains an unsecured revolving credit facility of $105 million with four banks which continues through March 29, 2001 at which time, or earlier at the company's option, the revolving credit converts to a term loan facility, and the loans then outstanding are payable in four equal quarterly installments. The company may elect the base for interest from either domestic rate loans, eurodollar loans, adjusted CD rate loans, offered loans or treasury rate loans. The weighted average interest rate on borrowings under the revolving credit facility was 5.87% and 5.62% at August 31, 1997 and 1996, respectively. The credit agreement provides for commitment fees during the revolving loan period. Fees are based on quarterly funded debt to equity levels. Based on debt and equity levels at August 31, 1997, the fees are .1% per annum. Consistent with the classification of the revolving credit agreement, fixed asset payables that will be financed through the agreement are classified as long-term debt. The senior promissory notes and the revolving credit facility agreement require the company to comply with certain covenants, one of which requires the company maintain minimum net worth. At August 31, 1997, $91,750,000 of retained earnings was available for payment of cash dividends without violation of the minimum net worth covenant related to the senior promissory notes. The company maintains a commercial paper placement agreement with a bank to issue up to $40 million of unsecured debt obligations which requires unused credit availability under its revolving credit agreement equal to the amount of outstanding commercial paper. At August 31, 1997, $13,004,000 was outstanding. There were no amounts outstanding at August 31, 1996. The weighted average interest rate on outstanding commercial paper was 5.86% at August 31, 1997. -27- The aggregate annual maturities of long-term debt are as follows: (all dollar amounts in thousands) 1998 1999 2000 2001 2002 Thereafter $6,290 $6,085 $6,000 $13,106 $39,319 $19,000 Annual maturities will be affected by future borrowings. A bank participating in the revolving credit agreement has provided a separate uncommitted revolving line of credit to the company in the amount of up to $5 million. The specific terms of any revolving loans borrowed pursuant to this line of credit will be negotiated at the time of the borrowing and any revolving loans so borrowed will be payable on demand. In addition, the company has a $2 million line of credit with interest payable at the prime rate. The line does not require a compensating balance or a commitment fee. There was no borrowing against these lines at August 31, 1997. NOTE 5. LEASE COMMITMENTS The company has various leases for real estate, mobile equipment and machinery which generally provide for renewal privileges or for purchase at option prices established in the lease agreements. Property, plant and equipment includes the following amounts for capitalized leases: (all dollar amounts in thousands) 1997 1996 Machinery and equipment $ 1,416 $ 1,416 Allowance for amortization ( 729) ( 354) Net value $ 687 $ 1,062 Lease amortization is included in depreciation expense. Future minimum payments, by year and in the aggregate, under capitalized leases and noncancelable operating leases with initial or remaining terms of one year or more consisted of the following at August 31, 1997: Capital Operating (all dollar amounts in thousands) Leases Leases 1998 $ 301 $ 226 1999 86 170 2000 93 2001 33 2002 33 Thereafter 77 Total minimum payments 387 632 Amounts representing interest ( 12) Present value of net minimum lease payments $ 375 $ 632 The future minimum payments for capitalized leases are reflected in the aggregate annual maturities of long-term debt disclosure in Note 4. -28- Rental expense for all operating leases consists of: (all dollar amounts in thousands) 1997 1996 1995 Minimum rentals $ 1,428 $ 1,323 $ 1,347 Contingent rentals 532 288 267 Totals $ 1,960 $ 1,611 $ 1,614 Contingent rentals are based upon usage. NOTE 6. INTEREST EXPENSE AND CAPITALIZED INTEREST Total Net Interest Capitalized Interest (all dollar amounts in thousands) Expense Interest Expense 1997 $ 3,768 $ 248 $ 3,520 1996 3,698 912 2,786 1995 2,423 735 1,688 NOTE 7. RETIREMENT PLAN Substantially all employees are covered under retirement plans. The defined benefit plans covering salaried employees provide benefits based on final average pay formulas; the plans covering hourly employees provide benefits based on years of service and fixed benefit amounts for each year of service. The plans are funded in accordance with federal laws and regulations. The company selected measurement dates of plan assets of May 31, 1997 and 1996. The components of net periodic pension cost follow: (all dollar amounts in thousands) 1997 1996 1995 Service cost $ 2,790 $ 2,345 $ 2,199 Interest cost 5,097 4,266 3,920 Actual return on assets ( 7,808) ( 11,019) ( 4,365) Net amortization and deferral 4,654 7,625 1,201 Net pension cost $ 4,733 $ 3,217 $ 2,955 -29- The following table sets forth the benefit obligations and funded status of the plans at August 31: 1997 1996 Plans Plans Plans Plans With Assets With Assets With Assets With Assets Exceeding Less Than Exceeding Less Than Accumulated Accumulated Accumulated Accumulated Benefit Benefit Benefit Benefit Obligation Obligation Obligation Obligation Actuarial present value of benefit obligations: Vested benefits ($12,228) ($52,978) ($29,548) ($25,550) Nonvested benefits ( 2,813) ( 10,817) ( 5,402) ( 3,867) Accumulated benefit obligations ( 15,041) ( 63,795) ( 34,950) ( 29,417) Additional amounts related to projected salary increases ( 4,599) ( 518) ( 4,379) ( 421) Projected benefit obligation ( 19,640) ( 64,313) ( 39,329) ( 29,838) Plan assets at market value at May 31 19,475 47,987 41,214 18,007 Plan assets in excess of (less than) projected benefit obligation ( 165) ( 16,326) 1,885 ( 11,831) Unrecognized net loss (gain) ( 1,289) 1,310 ( 4,831) 732 Unrecognized prior service costs 673 14,691 5,235 8,524 Unrecognized initial net obligation (asset) ( 1,051) 311 ( 1,339) 500 Cash contributions to plans subsequent to May 31 397 1,251 109 Adjustment to recognize minimum liability ( 17,045) ( 9,335) Net pension asset (liability) recognized in the consolidated balance sheets ($ 1,435) ($15,808) $ 1,059 ($11,410) Projected benefit obligations were determined using an assumed discount rate of 7.5% and an assumed rate of increases in future compensation levels of 5.0%. The assumed long-term rate of return on plan assets was 8.0%. Plan assets consist principally of publicly traded stocks and fixed income securities and include Wausau Paper Mills Company common stock with a market value of $1,440,300 in 1997 and $1,632,000 in 1996. For plans where the accumulated benefit obligation exceeds the fair value of plan assets, a minimum pension liability has been established to recognize the plans' underfunding, with an offsetting intangible asset and reduction to stockholders equity, net of deferred taxes. The company also sponsors defined contribution pension plans, several of which provide for company contributions based on a percentage of employee contributions. The cost of such plans totaled $452,000 in 1997, $314,000 in 1996 and $232,000 in 1995. The company has deferred compensation or supplemental retirement agreements with certain present and past key officers and employees. The principal cost of such plans is being or has been accrued over the period of active employment to the full eligibility date. The annual cost of the deferred compensation and supplemental retirement agreements does not represent a material amount. The company sponsors unfunded defined benefit postretirement health and life insurance plans that cover substantially all employees reaching normal retirement age while working for the company. Benefits and eligibility for various employee groups vary by location and union agreements. Generally, employees are eligible after reaching age 55 or 62 and meeting minimum service requirements. At age 65, the benefits become coordinated with Medicare. The company funds the benefit costs on a current basis. -30- Postretirement benefit cost includes the following components: (all dollar amounts in thousands) 1997 1996 1995 Service cost $ 1,018 $ 911 $ 933 Interest cost 2,173 2,033 1,984 Net periodic postretirement benefit cost $ 3,191 $ 2,944 $ 2,917 The plans' status at August 31, were as follows: (all dollar amounts in thousands) 1997 1996 Actuarial present value of benefit obligation: Retirees $ 10,591 $ 10,188 Fully eligible active participants 10,024 8,236 Other active participants 15,692 10,982 Accumulated postretirement benefit obligation 36,307 29,406 Unrecognized net gain (loss) (1,988) 2,443 Accrued postretirement benefit liability $ 34,319 $ 31,849 For 1997, the assumed health care cost trend rate used in measuring the accumulated postretirement benefit obligation was 8% declining by 1% annually for three years to an ultimate rate of 5%. The weighted average discount rate was 7.5%. For 1996, the assumed health care cost trend rate used in measuring the accumulated postretirement benefit obligation was 9% declining by 1% annually for four years to an ultimate rate of 5%. The weighted average discount rate was 7.5%. A one-percentage-point increase in the assumed health care cost trend rates would increase the accumulated postretirement benefit obligation as of August 31 by approximately $4,977,000 or 13.7% in 1997 and $3,801,000 or 12.9% in 1996. The effect of this change on the aggregate of the service and interest cost would be an increase of $498,000 or 15.6% in 1997 and $441,000 or 15.0% in 1996. NOTE 8. INCOME TAXES Deferred tax assets and liabilities are determined based on the estimated future tax effects of temporary differences between the financial statement and tax bases of assets and liabilities, as measured by the current enacted tax rates. Deferred tax expense is the result of changes in the deferred tax asset and liability. -31- The provision for income taxes is comprised of the following: (all dollar amounts in thousands) 1997 1996 1995 Currently payable Federal $ 20,768 $ 17,776 $ 13,487 State 2,102 1,638 1,532 22,870 19,414 15,019 Deferred Federal 6,021 5,668 4,197 State 609 518 384 6,630 6,186 4,581 Totals $ 29,500 $ 25,600 $ 19,600 A reconciliation between taxes computed at the federal statutory rate and the company's effective tax rate follows: (all dollar amounts in thousands) 1997 1996 1995 Federal statutory tax rate $ 27,440 35.0% $ 23,390 35.0% $ 17,798 35.0% State taxes (net of federal tax benefits) 1,922 2.4 1,472 2.2 1,324 2.6 Other 138 .2 738 1.1 478 .9 Effective tax $ 29,500 37.6% $ 25,600 38.3% $ 19,600 38.5% -32- The major temporary differences that give rise to the deferred tax assets and liabilities at August 31, 1997 and 1996 are as follows: (all dollar amounts in thousands) 1997 1996 Deferred tax asset: Allowances on accounts receivable $ 1,242 $ 865 Accrued compensated absences 1,940 1,772 Stock appreciation rights plans 1,328 982 Inventories 2,226 2,105 Postretirement benefits 13,292 12,627 Other 1,587 1,963 Gross deferred tax asset 21,615 20,314 Deferred tax liability: Property, plant and equipment ( 62,163) ( 54,823) Other ( 429) ( 1,272) Gross deferred tax liability ( 62,592) ( 56,095) Net deferred tax liability ($ 40,977) ($ 35,781) The total deferred tax liabilities (assets) as presented in the accompanying consolidated balance sheets are as follows: (all dollar amounts in thousands) 1997 1996 Net long-term deferred tax liabilities $ 49,301 $ 43,469 Net current deferred tax assets ( 8,324) ( 7,688) Net deferred tax liability $ 40,977 $ 35,781 NOTE 9. STOCK OPTIONS AND APPRECIATION RIGHTS The company maintains the 1991 Employee Stock Option Plan. The plan specifies purchase price, time and method of exercise. Payment of the option price may be made in cash or by tendering an amount of common stock having a fair market value equal to the option price. Options are granted for terms up to 20 years, the option price being equal to the fair market value of the company's common stock at the date of grant for incentive and non-qualified options. During 1997, 67,000 options were granted under the plan to be earned in the current year based upon the satisfaction of operating goals set forth in the agreement. A total of 43,000 options were earned based upon actual operating results. During 1996, 64,375 options were earned based upon the satisfaction of operating goals set forth in the agreement. A total of 46,062 options granted in 1995 terminated when operating goals were not met. -33- The following table summarizes the activity relating to the company's stock option plans: 1997 1996 1995 Stock Options: Weighted Weighted Weighted Average Average Average Exercise Exercise Exercise Shares Price Shares Price Shares Price Options outstanding at beginning of year 399,030 $17.99 308,792 $15.43 439,426 $16.19 Granted 67,000 17.69 143,125 18.95 132,687 19.18 Terminated (27,125) 17.78 ( 53,390) 17.01 Exercised ( 2,444) 13.13 ( 52,887) 5.61 (209,931) 9.75 Options outstanding at end of year 436,461 17.99 399,030 17.99 308,792 15.43 Options exercisable at end of year 432,336 17.99 384,905 17.88 280,832 15.22 <FN> All shares and option prices have been restated to reflect the five-for-four stock split occurring in 1996 and the 10% stock dividend occurring in 1995. Effective September 1, 1996, the company has adopted Statement of Financial Accounting Standards (SFAS) No. 123, "Accounting for Stock-Based Compensation." As permitted under SFAS No. 123, the company will continue to measure compensation cost for stock option plans using the "intrinsic value based method" prescribed under APB No. 25, "Accounting for Stock Issued to Employees." Accordingly, no compensation cost has been recognized for the stock option plans. If compensation cost had been determined consistent with the provisions of SFAS No. 123, which prescribes the "fair value based method" on the grant date, earnings per share would have been reduced by $.01 and $.02 for the years ended August 31, 1997 and 1996, respectively. The weighted-average grant-date exercise prices and weighted-average fair values for options granted are as follows: 1997 1996 Exercise price equals market price Exercise price ---- $18.50 Fair Value ---- 7.21 Exercise price less than market price Exercise price $17.69 $19.36 Fair value 8.67 8.14 The fair value of each option grant has been estimated on the grant date using the Black-Scholes option pricing model based on the following weighted-average assumptions: 1997 1996 Risk-free interest rate 6.27% 5.97% Expected life in years 5 5 Price volatility 32.1% 31.5% Dividend yield * 0 0 <FN> * Dividend yield is assumed to be zero because dividend equivalents were granted in tandem with the options granted. As such, dividends do not reduce the economic value of the options. -34- The 1988 Management Incentive Plan entitles certain management employees the right to receive cash equal to the sum of the appreciation in value of the stock and the hypothetical value of cash dividends which would have been paid on the stock covered by the grant assuming reinvestment in company stock. The stock appreciation rights granted may be exercised in whole or in such installments and at such times as specified in the grant. In all instances, the rights lapse if not exercised within 20 years of the grant date. Compensation expense is recorded with respect to the rights based upon the quoted market value of the shares and the exercise provisions. The following table summarizes the activity relating to the company's stock appreciation rights plans: STOCK APPRECIATION RIGHTS: 1997 1996 1995 Rights outstanding at beginning of year (number of shares) 163,728 179,555 184,555 Exercised ( 15,827) ( 5,000) Rights outstanding at end of year (number of shares) 163,728 163,728 179,555 Rights exercisable at end of year (number of shares) 163,728 163,728 179,555 Price range of stock appreciation rights exercised $ 4.46 $ 5.88 Price range of outstanding stock appreciation rights $4.46-6.26 $4.46-6.26 $4.46-6.26 <FN> All shares and price ranges have been restated to reflect the five-for-four stock split occurring in 1996 and the 10% stock dividend occurring in 1995. The company maintains the 1991 Dividend Equivalent Plan. Participants are entitled to receive cash based on the hypothetical value of cash dividends which would have been paid on the stock covered by the grant assuming reinvestment in company stock. During 1997, 67,000 dividend equivalents were granted under the plan to be earned in the current year based upon the satisfaction of operating goals set forth in the agreement. A total of 43,000 dividend equivalents were earned based upon actual operating results. During 1996, 64,375 dividend equivalents were earned based upon the satisfaction of operating goals set forth in the agreement. All dividend equivalents granted in 1995 terminated when operating goals were not met. -35- DIVIDEND EQUIVALENTS: 1997 1996 1995 Equivalents outstanding at beginning of year (number of shares) 276,347 142,999 142,999 Granted 67,000 143,125 46,063 Exercised ( 5,569) ( 9,777) Terminated ( 24,000) ( 46,063) Equivalents outstanding at end of year (number of shares) 313,778 276,347 142,999 Equivalents exercisable at end of year (number of shares) 313,778 276,347 142,999 <FN> All shares have been restated to reflect the five-for-four stock split occurring in 1996 and the 10% stock dividend occurring in 1995. The pre-tax impact on earnings of all stock option discounts, dividend equivalents and stock appreciation rights for the years ended August 31, 1997, 1996 and 1995 was expense of $1,092,000, $78,000 and $79,000, respectively. NOTE 10. ACQUISITION OF OTIS SPECIALTY PAPERS On May 12, 1997, the company acquired the business and assets of Otis Specialty Papers ("Otis"). The acquisition was accounted for using the purchase method of accounting. The financial statements reported herein include the net sales, operating profit and net earnings of Otis from the date of purchase. The following table presents unaudited pro forma condensed results of operations for the years ended August 31, 1997 and 1996 as if the acquisition were completed at the beginning of the period: (Unaudited) (Unaudited) 1997 1996 Net Sales $631,766 $618,225 Operating Profit 87,124 72,005 Net Earnings 51,005 40,961 Net Earnings per Common Share $ 1.40 $ 1.11 The unaudited pro forma financial information includes certain assumptions or adjustments, not material in amount, which the company believes are necessary to fairly present such information. Historical costs representing the seller's corporate allocations, interest expense and one-time expenses related to the sale of Otis are included in the pro forma information. The pro forma information does not purport to represent what the company's results of operations would actually have been if this transaction had occurred at the beginning of the earliest period presented. NOTE 11. RESEARCH EXPENSES Research expenses charged to operations were $1,503,000 in 1997, $1,381,000 in 1996 and $1,219,000 in 1995. -36- NOTE 12. COMMITMENTS, CONTINGENCIES AND RELATED PARTY TRANSACTIONS On August 24, 1997, Wausau Paper Mills Company, Mosinee Paper Corporation ("Mosinee") and WPM Holdings, Inc., a wholly-owned subsidiary of the company ("Merger Sub"), entered into an Agreement and Plan of Merger (the "Merger Agreement") pursuant to which Merger Sub will be merged with and into Mosinee (the "Merger") with Mosinee being the surviving corporation. Under the terms of the Merger Agreement, which was unanimously approved by the Boards of Directors of the company and Mosinee, each outstanding share of Mosinee common stock will be converted into the right to receive 1.4 shares of Wausau common stock, with cash paid in lieu of fractional shares. The Merger, which is subject to approval by the shareholders of both the company and Mosinee, regulatory approval and other customary conditions, will be accounted for as a pooling of interests and is expected to close by the end of calendar 1997. The company is involved in various legal proceedings in the normal course of business. It is the opinion of management that any judgment or settlement resulting from pending or threatened litigation would not have a material adverse effect on the financial position or on the operations of the company. As of August 31, 1997, the company was committed to spend approximately $34.0 million to complete capital projects which were in various stages of completion. On November 9, 1996, the company's pulp mill in Brokaw, Wisconsin experienced damage to two of its four high-pressure cooking vessels known as digesters. The digesters were out of production for approximately five months resulting in a significant loss of pulp production and extensive repair work. Insurance was in effect to cover property damage and business interruption costs. Approximately $3.5 million in pre-tax expense was recorded in fiscal 1997 for the potential uninsured operating expenses, including insurance deductibles. The company is in discussions with its insurers as to insurance proceeds to which the company believes it is entitled. Insurance proceeds under the company's property damage claim will be recorded upon receipt or final settlement of the claim. Insurance proceeds under the business interruption claim may exceed the insurance recovery receivable recorded in fiscal 1997. Additional proceeds from the business interruption claim will be included in income when received but are not expected to be material in amount. In July 1996, the company signed a natural gas transportation agreement with the Portland Natural Gas Transmission System (PNGTS). Under the terms of the agreement, PNGTS will construct necessary gas supply and delivery equipment to the company's Groveton, New Hampshire mill. The company is committed to the transportation of a fixed volume of natural gas over the 20-year agreement. Capital improvements to the Groveton mill's power plant will be required to take advantage of this agreement. Transportation of natural gas to the Groveton mill is scheduled to begin in fiscal 1999. NOTE 13. FUTURES CONTRACTS At August 31, 1997, the company was party to various futures contracts for the purchase of pulp and natural gas. The pulp contracts require the company to purchase 2,424 tons of pulp during fiscal 1998. The price of the pulp varies from $531 to $557 per ton. The natural gas contracts require the company to purchase 1,150,000 decatherms of natural gas during fiscal 1998. The delivered price of 700,000 decatherms varies from $2.77 to $3.00 per decatherm. The remaining 450,000 decatherms are to be purchased at the lower of the contract cap price of $3.42 per decatherm or market. At August 31, 1997, the company's futures contracts have no carrying -37- value. The fair value of the contracts and the total deferred gain on the contracts are immaterial at August 31, 1997. NOTE 14. MAJOR CUSTOMERS One customer accounted for 13.9% of net sales aggregating $79,462,000, 12.7% of net sales aggregating $68,797,000 and 12.0% of net sales aggregating $61,732,000 in 1997, 1996 and 1995, respectively. Another customer accounted for 10.9% of net sales aggregating $62,416,000 and 11.5% of net sales aggregating $62,563,000 in 1997 and 1996, respectively. NOTE 15. FAIR VALUES OF FINANCIAL INSTRUMENTS The fair value of the following financial instruments is not materially different from the carrying value: cash and cash equivalents, long-term debt, capital leases and futures contracts. The following methods and assumptions were used by the company in estimating fair values of financial instruments: Cash and cash equivalents - The carrying amount approximates fair value due to the relatively short period to maturity for these instruments. Long-term debt - The fair value of the company's long-term debt is estimated based on current rates offered to the company for debt of the same remaining maturities. Capital leases - The carrying amount reported in the balance sheets for capital leases approximates fair value. Futures contracts - The fair values of the company's pulp and natural gas futures contracts were estimated using the prices published by Lynch Futures Inc. and NYMEX, respectively, the contract price and the remaining pulp and natural gas to be purchased under the contracts. -38- QUARTERLY DATA (UNAUDITED) (all dollar amounts in thousands, except per share data) 1997 1996 Fourth Third Second First Fourth Third Second First Net Sales $161,099 $143,555 $125,965 $139,639 $132,729 $139,446 $128,590 $141,904 Gross Profit 32,547 31,736 23,396 26,340 30,005 31,048 18,605 19,628 Operating Profit 22,846 23,785 16,565 18,324 21,997 23,781 11,533 12,212 Net earnings 13,466 14,451 9,868 11,114 13,113 14,094 6,717 7,305 Per share $0.37 $0.40 $0.27 $0.30 $0.36 $0.38 $0.18 $0.20 Per Share basis: Cash dividends* $ 0.0625 $0.0625 $ 0.125 $ 0.055 $ 0.055 $0.11 Common stock price (closing)** High $ 22.38 $ 20.50 $ 21.38 $ 20.38 $ 22.75 $ 24.13 $ 23.50 $ 22.70 Low $ 18.50 $ 17.25 $ 17.88 $ 17.50 $ 16.25 $ 20.50 $ 20.00 $ 18.60 <FN> *Dividends reported as of declaration date. During each year presented, two quarterly dividends were declared in the second quarter. **Such prices reflect the high and low "closing" price quotation on The Nasdaq National Market and do not reflect markups, markdowns or commissions and may not necessarily reflect actual transactions. The estimated effective tax rate utilized for the first three quarters of each fiscal year was different than the final annual effective rate and the adjustment of income taxes was all reflected in the quarter ended August 31 of each fiscal year. All per share data has been restated to reflect the five-for-four stock split occurring in 1996. -39- Item 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURES. None. PART III ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT. Information relating to directors of the company is incorporated into this Form 10-K by this reference to the material set forth in the table under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Election of Directors" in the company's proxy statement relating to the 1997 annual meeting of shareholders ("1997 Proxy Statement"). Information relating to the identification of executive officers of the company is found in Part I of this Form 10-K. Information relating to compliance with Section 16(a) of the Securities Exchange Act of 1934 is incorporated by this reference to the material set forth under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Section 16(a) Beneficial Ownership Reporting Compliance" in the 1997 Proxy Statement. Item 11. EXECUTIVE COMPENSATION. Information relating to director compensation is incorporated into this Form 10-K by this reference to the material set forth in the 1997 Proxy Statement under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Director Compensation." Information relating to the compensation of executive officers is incorporated into this Form 10-K by this reference to (1) the material set forth under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Compensation of Executive Officers", ending with the material set forth under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Pension Plan and Other Benefits", and (2) the material set forth under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Committee Interlocks and Insider Participation", in the 1997 Proxy Statement. Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT. Information relating to security ownership of certain beneficial owners and management is incorporated into this Form 10-K by this reference to the material set forth in the 1997 Proxy Statement under "INFORMATION RELATING TO THE WAUSAU ANNUAL MEETING-Beneficial Ownership of Wausau Common Shares." Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS. None. -40- PART IV Item 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K. (a) Financial statements and financial statement schedules, filed as part of this report and required by Item 14(d), are set forth in Part II, Item 8. (b) Reports on Form 8-K. Form 8-K dated August 24, 1997 relating to the merger of the Registrant. See Item 1. (c) Exhibits required by Item 601 of Regulation S-K. The following exhibits are filed with the Securities and Exchange Commission as part of this report. Incorporated Exhibit <dagger> 2.1 Agreement and Plan of Merger dated August 24, 1997 among Registrant, Mosinee Paper Corporation and WPM Holdings, Inc. 99.1(1) 3.1 Articles of Incorporation, as amended December 21, 1995 3(2) 3.2 Bylaws, as restated July 17, 1992 3(b)(3) 4.1 Articles and Bylaws (see Exhibits 3.1 and 3.2) 10.1 Executive Officers' Deferred Compensation Retirement Plan, as amended September 18, 1996* 10(a)(4) 10.2 Incentive Compensation Plans, as amended September 17, 1997 (Printing and Writing Division and Technical Specialty Division)* 10.3 Corporate Management Incentive Plan, as amended September 18, 1996* 10(c)(4) 10.4 1988 Stock Appreciation Rights Plan, as amended April 17, 1991* 10(d)(4) 10.5 1988 Management Incentive Plan, as amended April 17, 1991* 10(e)(4) 10.6 1990 Stock Appreciation Rights Plan, as amended April 17, 1991* 10(f)(4) 10.7 Deferred Compensation Agreement dated March 2, 1990, as amended July 1, 1994* 10(h)(5) 10.8 1991 Employee Stock Option Plan* -41- 10.9 1991 Dividend Equivalent Plan* 10(i)(6) 10.10 Supplemental Retirement Benefit Plan dated January 16, 1992, as amended November 13, 1995* 10(7) 10.11 Directors' Deferred Compensation Plan* 10(k)(6) 10.12 Director Retirement Benefit Policy* 10(o)(8) 10.13 Transition Benefit Agreement with President and CEO 27.1 Financial Data Schedule 29.1 Subsidiaries as of August 31, 1997 *All exhibits represent executive compensation plans and arrangements. <bullet> Where exhibit has been previously filed and incorporated herein by reference, exhibit numbers set forth herein correspond to the exhibit number of such exhibit in the following reports of the registrant (Commission File No. 0-7574) filed with the Securities and Exchange Commission. (1) Current report on Form 8-K dated August 24, 1997. (2) Quarterly report on Form 10-Q for the quarterly period ended February 29, 1996. (3) Annual report on Form 10-K for the fiscal year ended August 31, 1992. (4) Annual report on Form 10-K for the fiscal year ended August 31, 1996. (5) Annual report on Form 10-K for the fiscal year ended August 31, 1994. (6) Quarterly report on Form 10-Q for the quarterly period ended November 30, 1996. (7) Quarterly report on Form 10-Q for the quarterly period ended November 30, 1995. (8) Annual report on Form 10-K for the fiscal year ended August 31, 1993. -42- SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS Allowance Allowance for Allowance for (all dollar amounts in Doubtful for Pending thousands) Total Accounts Discounts Credits Balance August 31, 1994 $ 4,644 $ 1,335 $ 517 $ 2,792 Charges to costs and expenses 17,099 141 7,781 9,177 Deductions ( 16,663) ( 3) ( 7,658) ( 9,002) Balance August 31, 1995 $ 5,080 $ 1,473 $ 640 $ 2,967 Charges to costs and expenses 17,599 48 8,003 9,548 Deductions ( 16,675) ( 100) ( 8,042) ( 8,533) Balance August 31, 1996 $ 6,004 $ 1,421 $ 601 $ 3,982 Charges to costs and expenses 18,372 215 8,139 10,018 Deductions ( 18,501) ( 77) ( 8,052) ( 10,372) Balance August 31, 1997 $ 5,875 $ 1,559 $ 688 $ 3,628 -43- SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant had duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. WAUSAU PAPER MILLS COMPANY /s/ STEVEN A. SCHMIDT Steven A. Schmidt Vice President Finance, Secretary and Treasurer (Principal Accounting and Financial Officer) Date: October 31, 1997 Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. /s/ SAN W. ORR, JR. /s/ DAVID B. SMITH, JR. San W. Orr, Jr. David B. Smith, Jr. October 31, 1997 October 31, 1997 Chairman of the Board Director /s/ DANIEL D. KING /s/ GARY W. FREELS Daniel D. King Gary W. Freels October 31, 1997 October 31, 1997 President and Chief Director Executive Officer (Principal Executive Officer) Director /s/ HARRY R. BAKER Harry R. Baker October 31, 1997 Director -44- EXHIBIT INDEX<dagger> TO FORM 10-K OF WAUSAU PAPER MILLS COMPANY FOR THE PERIOD ENDED AUGUST 31, 1997 Pursuant to Section 102(d) of Regulation S-T (17 C.F.R. <section>232.102(d)) EXHIBIT 10 - MATERIAL CONTRACTS* 10.2 Incentive Compensation Plans, as amended September 17, 1997 (Printing and Writing Division and Technical Specialty Division) 10.8 1991 Employee Stock Option Plan 10.13 Transition Benefit Agreement with President and CEO *All exhibits represent executive compensation plans and arrangements. EXHIBIT 21.1 - SUBSIDIARIES OF THE REGISTRANT Subsidiaries of the Registrant as of August 31, 1997 EXHIBIT 27 - FINANCIAL DATA SCHEDULE <dagger>Exhibits required by Item 601 of Regulation S-K which have been previously filed and are incorporated by reference are set forth in Part IV, Item 14(c) of the Form 10-K to which this Exhibit Index relates. -45-