UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2002

OR

For the transition period from                     to                     

Commission File Number 1-4462

STEPAN COMPANY

(Exact name of registrant as specified in its charter)

Registrant’s telephone number including area code: 847-446-7500

Securities registered pursuant to Section 12 (b) of the Act:

Securities registered pursuant to Section 12 (g) of the Act:

None

(Title of Class)

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 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.  ¨.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days. Yes  x  No  ¨             

Aggregate market value at February 28, 2003, of voting stock held by nonaffiliates of the registrant: $146,923,000*

Number of shares outstanding of each of the issuer’s classes of common stock as of February 28, 2003:

Documents Incorporated by Reference

* Based on reported ownership by all directors, officers and beneficial owners of more than 5% of registrant’s voting stock. However, this determination does not constitute an admission of affiliate status for any of these holders.

PART I

Item 1. Business

Stepan Company and its subsidiaries (the “Company”) produce specialty and intermediate chemicals, which are sold to other manufacturers and then made into a variety of end products. The Company has three reportable segments: surfactants, polymers and specialty products. Surfactants refer to chemical agents, which affect the interaction between two surfaces; they can provide actions such as detergency (i.e., the ability of water to remove soil from another surface), wetting and foaming, dispersing, emulsification (aiding two dissimilar liquids to mix), demulsification and viscosity modifications. Surfactants are the basic cleaning agent in detergents for washing clothes, dishes, carpets, fine fabrics, floors and walls. Surfactants are also used for the same purpose in shampoos and conditioners, fabric softeners, toothpastes, cosmetics and other personal care products. Commercial and industrial applications include emulsifiers for agricultural products, emulsion polymers such as floor polishes and latex foams and coatings, wetting and foaming agents for wallboard manufacturing and surfactants for enhanced oil recovery. Polymers, which included phthalic anhydride, polyols and polyurethane foam systems, are used in plastics, building materials and refrigeration industries. Polymers are also used in coating, adhesive, sealant and elastomer applications. Specialty products sell chemicals used in food, flavoring and pharmaceutical applications.

MARKETING AND COMPETITION

Principal markets for surfactants are manufacturers of detergents, shampoos, lotions, fabric softeners, toothpastes and cosmetics. In addition, surfactants are sold to the producers of emulsifiers and lubricating products. The Company also is a principal provider of polymers used in construction, refrigeration, automotive, boating and other consumer product industries. Specialty products are used primarily by food and pharmaceutical manufacturers.

The Company does not sell directly to the retail market, but sells to a wide range of manufacturers in many industries and has many competitors. The principal methods of competition are product performance, price and adaptability to the specific needs of individual customers. These factors allow the Company to compete on a basis other than price alone, reducing the severity of competition as experienced in the sales of commodity chemicals having identical performance characteristics. The Company is a leading merchant producer of surfactants in the United States. In the case of surfactants, much of the Company’s competition comes from several large national and regional producers and the internal divisions of larger companies. In the manufacture of polymers, the Company competes with the chemical divisions of several large companies, as well as with other small specialty chemical manufacturers. In recent years, the Company has also faced periodic competition from foreign imports of phthalic anhydride. In specialty products, the Company competes with several large firms plus numerous small companies.

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MAJOR CUSTOMER AND BACKLOG

The Company does not have any one customer whose business represents more than 10 percent of the Company’s consolidated revenue. Most of the Company’s business is essentially on the “spot delivery basis” and does not involve a significant backlog. The Company does have contract arrangements with certain customers, but purchases are generally contingent on purchaser requirements.

ENERGY SOURCES

Substantially all of the Company’s manufacturing plants operate on electricity and interruptable gas purchased from local utilities. During peak heating demand periods, gas service to all plants may be temporarily interrupted for varying periods ranging from a few days to several months. The plants operate on fuel oil during these periods of interruption. The Company has not experienced any plant shutdowns or adverse effects upon its business in recent years that were caused by a lack of available energy sources.

RAW MATERIALS

The most important raw materials used by the Company are of a petroleum or vegetable nature. For 2003, the Company has commitments from suppliers to cover its forecasted requirements and is not substantially dependent upon any one supplier.

RESEARCH AND DEVELOPMENT

The Company maintains an active research and development program to assist in the discovery and commercialization of new knowledge with the intent that such effort will be useful in developing a new product or in bringing about a significant improvement to an existing product or process. Total expenses for research and development during 2002, 2001 and 2000 were $15.0 million, $13.7 million, and $13.4 million, respectively. The balance of expenses reflected on the Consolidated Statements of Income relates to technical services, which include routine product testing, quality control and sales support service.

ENVIRONMENTAL COMPLIANCE

Compliance with applicable federal, state and local regulations regarding the discharge of materials into the environment, or otherwise relating to the protection of the environment, resulted in capital expenditures by the Company of approximately $1.5 million during 2002. These expenditures represented approximately four percent of the Company’s capital expenditures in 2002. These expenditures, when incurred, are depreciated and charged on a straight-line basis to pre-tax earnings over their estimated useful lives, which is typically 10 years. Compliance with such regulations is not expected to have a material adverse effect on the Company’s earnings and competitive position in the foreseeable future.

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EMPLOYMENT

At December 31, 2002 and 2001, the Company employed worldwide 1,529 and 1,491 persons, respectively.

FOREIGN OPERATIONS

See Note 14, Segment Reporting, of the Consolidated Financial Statements (Item 8 of this Form 10-K).

SEGMENTS

See Note 14, Segment Reporting, of the Consolidated Financial Statements (Item 8 of this Form 10-K).

WEBSITE

The Company’s website address is www.Stepan.com. The Company makes available free of charge on or through its website its annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports as soon as reasonably practicable after such material is electronically filed with or furnished to the Securities and Exchange Commission.

Item 2. Properties

The Company’s corporate headquarters and central research laboratories are located in Northfield, Illinois. The Northfield facilities contain approximately 70,000 square feet on an eight acre site. In addition, the Company leases 49,000 square feet of office space in a nearby office complex.

Stepan Canada maintains a leased sales office in Mississauga, Canada. Stepan Mexico maintains a leased sales office in Mexico City, Mexico.

Surfactants are produced at four plants in the United States and six wholly owned subsidiaries: one each in France, United Kingdom, Canada, Mexico, Colombia and Germany. The principal U.S. plant is located on a 626 acre site at Millsdale (Joliet), Illinois. A second plant is located on a 45 acre tract in Fieldsboro, New Jersey. West Coast operations are conducted on an eight acre site in Anaheim, California. A fourth plant is located on a 175 acre site in Winder, Georgia. The plant, laboratory and office of Stepan Europe are located on a 20 acre site near Grenoble, France. Stepan Canada, Inc. is located on a 70 acre leased, with an option to purchase, site in Longford Mills, Ontario, Canada. Stepan Mexico is located on a 13 acre site in Matamoros, Mexico. Stepan Germany is located on a five acre site in Cologne, Germany. Stepan UK Limited is located on an 11 acre site in Stalybridge (Manchester), United Kingdom. Stepan Colombia is located on a five acre site in Manizales, Colombia. The phthalic anhydride, polyurethane systems and polyurethane polyols plants are also located at Millsdale. Specialty products are mainly produced at a plant located on a 19 acre site in Maywood, New Jersey.

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The Company owns all of the foregoing facilities except the leased office space and Canadian plant site mentioned above. The Company believes these properties are adequate for its operations.

Item 3. Legal Proceedings

The Company’s site in Maywood, New Jersey and property formerly owned by the Company adjacent to its current site, were listed on the National Priorities List in September 1993 pursuant to the provisions of the Comprehensive Environmental Response Compensation and Liability Act (CERCLA) because of certain alleged chemical contamination. Pursuant to an Administrative Order on Consent entered into between the United States Environmental Protection Agency (USEPA) and the Company for property formerly owned by the Company, and the issuance of an order by USEPA to the Company for property currently owned by the Company, the Company completed a Remedial Investigation Feasibility Study (RI/FS) in 1994. The Company submitted the Draft Final FS for Soil and Source Areas (Operable Unit 1) in September 2002. In addition, the Company has also submitted additional information regarding the remediation, most recently in October 2002. Discussions between USEPA and the Company are continuing. The Company is awaiting the issuance of a Record of Decision (ROD) from USEPA relating to the currently owned and formerly owned Company property and the proposed remediation. The final ROD will be issued sometime after the public comment period.

In 1985, the Company entered into a Cooperative Agreement with the United States of America represented by the Department of Energy (Agreement). Pursuant to this Agreement, the Department of Energy (DOE) took title to radiological contaminated materials and was to remediate, at its expense, all radiological waste on the Company’s property in Maywood, New Jersey. The Maywood property (and portions of the surrounding area) were remediated by the DOE under the Formerly Utilized Sites Remedial Action Program, a federal program under which the U.S. Government undertook to remediate properties which were used to process radiological material for the U.S. Government. In 1997, responsibility for this clean-up was transferred to the United States Army Corps of Engineers (USACE). On January 29, 1999, the Company received a copy of a USACE Report to Congress dated January 1998 in which the USACE expressed their intention to evaluate, with the USEPA, whether the Company and/or other parties might be responsible for cost recovery or contribution claims related to the Maywood site. Subsequent to the issuance of that report, the USACE advised the Company that it had requested legal advice from the Department of Justice as to the impact of the Agreement.

By letter dated July 28, 2000, the Department of Justice advised the Company that the USACE and USEPA had referred to the Justice Department claims against the Company for response costs incurred or to be incurred by the USACE, USEPA and the DOE in connection with the Maywood site and the Justice Department stated that the United States is entitled to recovery of its response costs from the Company under CERCLA. The letter referred to both radiological and non-radiological hazardous waste at the Maywood site and stated that the United States has incurred unreimbursed response costs to date of $138 million. Costs associated with radiological waste at the Maywood site, which the Company believes represent all but a small portion of the amount referred to in the Justice Department letter, could be expected to aggregate substantially in excess of that amount. In the letter, the Justice Department invited the Company to discuss settlement of the matter in order to avoid the need for litigation. The Company

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believes that its liability, if any, for such costs has been resolved by the aforesaid Agreement. Despite the fact that the Company continues to believe that it has no liability to the United States for such costs, discussions with the Justice Department are currently ongoing to attempt to resolve this matter.

The Company believes it has adequate reserves for claims associated with the Maywood site. However, depending on the results of the ongoing discussions regarding the Maywood site, the final cost of the remediation could differ from the current estimates.

The Company has been named as a potentially responsible party (PRP) in the case USEPA v. Jerome Lightman (92 CV 4710 D. N. J.) which involves the Ewan and D’Imperio Superfund Sites located in New Jersey. Trial on the issue of the Company’s liability at these sites was completed in March 2000. The Company is awaiting a decision from the court. If the Company is found liable at either site, a second trial as to the Company’s allocated share of clean-up costs at these sites will likely be held in 2003. The Company believes it has adequate defenses to the issue of liability. In the event of an unfavorable outcome related to the issue of liability, the Company believes it has adequate reserves. On a related matter, the Company has filed an appeal to the United States Third Circuit Court of Appeals objecting to the lodging of a partial consent decree in favor of the United States Government in this action. Under the partial consent decree, the government recovered past costs at the site from all PRPs including the Company. The Company paid its assessed share but by objecting to the partial consent decree, the Company is seeking to recover back the sums it paid.

Regarding the D’Imperio Superfund Site, USEPA has indicated it will seek penalty claims against the Company based on the Company’s alleged noncompliance with the modified Unilateral Administrative Order. The Company is currently negotiating with USEPA to settle its proposed penalty against the Company but does not believe that a settlement, if any, will have a material impact on the financial condition of the Company. In addition, the Company also received notice from the New Jersey Department of Environmental Protection (NJDEP) dated March 21, 2001, that NJDEP has indicated it will pursue cost recovery against the alleged responsible parties, including the Company. The NJDEP’s claims include costs related to remediation of the D’Imperio Superfund Site in the amount of $434,406 and alleged natural resource damages in the amount of $529,584 (as of November 3, 2000). The NJDEP settled such claims against the alleged responsible parties, resulting in the Company paying its portion of $83,061 in July 2002. This payment is subject to reallocation after the allocation phase of the above-identified trial, if any. The payment did not have a material impact on the financial condition of the Company.

The Company received a Section 104(e) Request for Information from USEPA dated March 21, 2000, regarding the Lightman Drum Company Site located in Winslow Township, New Jersey. The Company responded to this request on May 18, 2000. In addition, the Company received a Notice of Potential Liability and Request to Perform RI/FS dated June 30, 2000, from USEPA. The Company has decided that it will participate in the performance of the RI/FS. However, based on the current information known regarding this site, the Company is unable to predict what its liability, if any, will be for this site.

The Company received a General Notice of Potential Liability letter from the USEPA dated October 18, 2002, regarding the Liquid Dynamics Site located in Chicago, Illinois. The Company submitted a response to USEPA on November 5, 2002, stating that it is interested in negotiating a resolution of its potential responsibility at this site. Based on the fact that the

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Company believes it is de minimis at this site, the Company believes that a resolution of its liability at this site will not have a material impact on the financial condition of the Company.

As reported previously in the Company’s Quarterly Report Form 10-Q for the quarter ended September 30, 1994 and various subsequent reports, the Company received a Request for Information from the Commonwealth of Massachusetts Department of Environmental Protection relating to the Company’s formerly-owned site at 51 Eames Street, Wilmington, Massachusetts. The Company received a copy of another Request for Information regarding this site dated October 18, 2002. The Company’s response to this request was filed on December 20, 2002. The Company is currently investigating this matter and therefore, cannot predict what its liability, if any, will be for this site.

Item 4. Results of Votes of Security Holders

No matters were submitted to stockholders during the fourth quarter of the fiscal year ended December 31, 2002.

Executive Officers of the Registrant

Executive Officers are elected annually by the Board of Directors at the first meeting following the Annual Meeting of Stockholders to serve until the next annual meeting of the Board and until their respective successors are duly elected and qualified.

Mr. F. Quinn Stepan has served the Company as Chairman and Chief Executive Officer since 1984. He served as President and Chief Operating Officer from 1973 until February 15, 1999.

Effective February 15, 1999, F. Quinn Stepan, Jr., was elected President and Chief Operating Officer. He was previously Vice President and General Manager – Surfactants as of January 1, 1997, Vice President – Global Laundry and Cleaning Products as of May 1996 and Director – Business Management as of May 1992.

Effective February 16, 1999, John V. Venegoni was elected Vice President and General Manager – Surfactants. From May 1992 until May 1996, he served as a Senior Business Manager – Consumer Products. From May 1996 until February 16, 1999, he served as Director – Global Personal Care.

Effective January 1, 2001, Robert J. Wood was elected Vice President and General Manager – Polymers. From April 1988 until March 1996, he served as a Business Manager – Polyols. From March 1996 until January 1, 2001, he served as Director – Polyols.

Effective March 7, 2001, F. Samuel Eberts III was elected Vice President, General Counsel and Secretary. From 1992 until 1996, he served as an Assistant General Counsel for Baxter International Inc. From 1996 until 1998, he served as an Associate General Counsel for Allegiance Healthcare Corporation. From 1998 until 2001, he served as an Assistant General Counsel for Cardinal Health Inc.

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Effective July 1, 2001, Anthony J. Zoglio was elected Vice President – Manufacturing and Engineering. From 1991 until June 1, 1999, he served as Millsdale Plant Manager. From June 1, 1999 to July 1, 2001, he served as Vice President, Plant Operations.

Effective February 11, 2002, James E. Hurlbutt was elected Vice President and Corporate Controller. From August 7, 1996 until February 11, 2002, he served as Controller – International and Tax Accounting.

Walter J. Klein retired on April 30, 2002. Before the retirement, he served as Vice President – Finance.

James A. Hartlage retired on July 31, 2002. Before the retirement, he served as Senior Vice President – Technology and Operations.

The Executive Officers of the Company, their ages as of February 28, 2003, and certain other information are as follows:

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PART II

Item 5. Market for Registrant’s Common Stock and Related Security Holder Matters

The Company’s 5 1/2 percent convertible preferred stock is listed and traded on the New York Stock Exchange and the Chicago Stock Exchange. See Note 8 of the Consolidated Financial Statements (Item 8 of this Form 10-K) for a description of the preferred stockholders’ rights.

From time to time the Company purchases shares of its common stock in the open market and in block transactions from dealers for the purpose of funding option grants under its stock option plans and deferred compensation plans for directors and officers.

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Item 6. Selected Financial Data

See the table below for selected financial information.

(In thousands, except per share and employee data)

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Some information contained in the Management’s Discussion and Analysis is forward looking and involves risks and uncertainties. The results achieved this year are not necessarily an indication of future prospects for the Company. Actual results in future years may differ materially. Potential risks and uncertainties include, among others, fluctuations in the volume and timing of product orders, changes in demand for the Company’s products, changes in technology, continued competitive pressures in the marketplace, availability of raw materials, foreign currency fluctuations and general economic conditions.

Critical Accounting Policies

Estimates

We prepare our financial statements in accordance with accounting principles generally accepted in the United States of America (“generally accepted accounting principles”). Preparing our financial statements in accordance with generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Critical areas where estimates are required are noted below:

Environmental Liabilities:

It is the Company’s accounting policy to record environmental liabilities when environmental assessments and/or remedial efforts are probable and the cost or range of possible costs can be reasonably estimated. When no amount within the range is a better estimate than any other amount, the minimum is accrued. Some of the factors on which the Company bases its estimates include information provided by feasibility studies, potentially responsible party negotiations and the development of remedial action plans.

Reserves for Doubtful Accounts:

Accounts receivable are reported net of reserves for doubtful accounts. The Company determines the reserve requirement based upon the estimated collectibility of specific delinquent accounts, the Company’s historical loss experience and the level of non-delinquent accounts receivable.

Reserves for Obsolete and Slow Moving Inventories:

The Company provides reserves for obsolete and slow moving inventory items. The reserve requirement is estimated based upon a review of specific inventory items that are identified as slow moving and consideration of potential salvage value and disposal costs.

Because the foregoing liabilities and reserves are recorded based on estimates, actual amounts could differ from these estimates.

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Revenue Recognition

Revenue is recognized upon shipment of goods to customers, at which time title and risk of loss has passed to the customer. The Company records shipping and handling billed to a customer in a sales transaction as revenue. Costs incurred for shipping and handling are recorded in cost of sales. Volume discounts due customers are recognized as earned and reported as reductions of revenue in the statement of income.

Deferred Compensation

The Company maintains deferred compensation plans. These plans allow management to defer receipt of their bonuses and directors to defer receipt of director fees until retirement or departure from the Company. The plans allow the participant to choose to invest in either Stepan common stock or a limited variety of mutual funds. These assets are owned by the Company and subject to the claims of general creditors of the Company. These plans are accounted for under the requirements of the consensus reached by the Emerging Issues Task Force (“EITF”) of the Financial Accounting Standards Board (“FASB”) in issue No. 97-14, “Accounting for Deferred Compensation Arrangements Where Amounts Earned are Held in a Rabbi Trust and Invested”. A description of the Company’s deferred compensation accounting policy follows:

The deferred compensation liability to the participants who elect deferral is recorded when the underlying compensation is earned, and recorded as expense. The purchase of Stepan common shares for the plans is recorded as a regular treasury stock purchase. The purchase of mutual funds is recorded as other non-current assets.

Fluctuations in the value of these assets are recorded as adjustments for the deferred compensation liability and compensation costs included in administrative expense. The dividends, interest and capital gains from the mutual fund assets are recorded as investment income, which is netted against interest expense in the “Other Income” caption of the consolidated statements of income. Unrealized gains and losses resulting from market fluctuations of the mutual funds are recorded as other comprehensive income or expense in stockholders’ equity.

Intangible Assets

The Company has intangible assets, which include patents, agreements not to compete, trademarks, customer lists and goodwill. These assets are accounted for under the requirements of Statement of Financial Accounting Standards (“SFAS”) No. 142, “Goodwill and Other Intangible Assets”. The goodwill acquired as a result of a business combination is not being amortized. Instead, goodwill is tested for impairment by applying a fair value based test on an annual basis. Upon adoption of SFAS No. 142 on January 1, 2002, our analysis reflected no impairment of goodwill. The provisions of SFAS No. 142 that apply to acquisitions made prior to June 30, 2001, were adopted on January 1, 2002. As a result the Company stopped recognizing approximately $0.6 million of goodwill amortization expense in 2002. Also, SFAS No. 142 establishes new accounting guidelines for intangible assets that have indefinite useful lives. These assets are no longer subject to amortization, but must be tested for impairment on an annual basis. As of December 31, 2002, the Company does not have intangible assets with indefinite lives. All

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intangible assets, other than goodwill, have finite useful lives and are being amortized in accordance with assigned useful lives.

Results of Operations

2002 Compared with 2001

Net sales for 2002 increased five percent from $711.5 million in 2001 to $748.5 million. Net sales by segment were as follows:

Surfactants are a principal ingredient in consumer and industrial cleaning products such as detergents, shampoos, lotions, fabric softeners, toothpastes and cosmetics. Other applications include lubricating ingredients and emulsifiers for agricultural products, and plastics and composites.

Surfactants net sales, representing 80 percent of the Company’s revenue, increased $40.5 million, or seven percent, from $558.9 million in 2001 to $599.4 million in 2002, due primarily to a six percent rise in sales volume. Foreign operations net sales increased $38.2 million, or 25 percent, from $152.3 million in 2001 to $190.5 million in 2002. A 34 percent increase in sales volume more than offset a six percent decrease in average prices and led to the net sales growth. Approximately $32.2 million of the increase was due to the fourth quarter 2001 acquisition of Stepan UK Ltd. European operations, excluding the United Kingdom, and Canadian operations posted net sales increases of $5.1 million and $2.5 million, respectively. The effect of favorable exchange rate fluctuations ($3.3 million) and increased sales volume led to the European operations net sales growth. The net sales increase for Canadian operations reflected higher sales volume. Latin American operations posted a $1.6 million decrease in revenue due to a decline in sales volume. Domestic operations, which accounted for 68 percent of total surfactant revenues, reported a $2.3 million, or one percent, increase in net sales, due to higher average prices, which offset a two percent decline in sales volume. The increase in average prices was primarily due to a more favorable sales mix. Sales volume declined due to lower demand for laundry and cleaning products.

The polymers product group includes phthalic anhydride (PA), polyurethane systems and polyurethane polyols. PA is used in polyester alkyd resins and plasticizers for applications in construction materials and components of automotive, boating and other consumer products. Polyurethane systems provide thermal insulation and are sold to the construction, industrial and appliance markets. Polyurethane polyols are used in the manufacture of laminate board for the construction industry. Polyurethane polyols are also sold to the appliance, coatings, adhesives, sealants and elastomers markets.

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Polymer net sales, accounting for 17 percent of the Company’s revenue, decreased $3.4 million, or three percent, from $127.7 million in 2001 to $124.3 million in 2002. The decrease was due to an 11 percent drop in average selling prices, which more than offset a nine percent increase in sales volume. Globally, polyurethane polyols net sales decreased $3.4 million, or five percent, from $75.5 million in 2001 to $72.2 million in 2002. Sales volume decreased two percent. Domestic operations accounted for $5.7 million of the decline. The decrease was due to a seven percent drop in sales volume coupled with a two percent decline in average selling prices. Foreign operations reported increased net sales based on improved sales volume, notably, a 44 percent increase in Europe. PA’s net sales increased 12 percent to $36.8 million in 2002 from $32.8 million in 2001. A 33 percent gain in sales volume, due to increased market share, more than offset a 16 percent decrease in average selling prices. Lower raw material costs led to the average price decline. Polyurethane systems net sales fell $4.1 million, or 21 percent, between years. A 23 percent decline in sales volume, due primarily to competitive losses at key accounts, led to the decrease.

Specialty products include flavors, emulsifiers and solubilizers used in the food and pharmaceutical industries. Net sales for the year were $24.8 million, a slight decrease in comparison with $24.9 million a year ago.

The Company’s gross profit increased to $122.5 million in 2002 from $107.2 million in 2001. Surfactants gross profit was up $13.7 million, or 18 percent, from $74.5 million in 2001 to $88.2 million in 2002. Domestic operations reported a $6.2 million, or 11 percent, increase in gross profit due to higher average margins. Lower raw material costs led to the higher average margins. Gross profit for foreign operations rose $7.5 million, or 40 percent, to $26.0 million in 2002 from $18.5 million in 2001. European operations contributed $7.3 million to the improvement, of which $5.7 million related to the previously noted Stepan UK acquisition. Latin American operations reported slightly higher gross profit due to improved average margins. Polymers gross profit increased $1.8 million, or eight percent, between years. PA’s gross profit increased $1.2 million, or 36 percent, from $3.2 million in 2001 to $4.3 million in 2002. The rise was based on improved sales volume. Globally, polyurethane polyols gross profit increased $2.1 million, or 11 percent, from $18.6 million in 2001 to $20.7 million in 2002. Domestic operations reported an increase of $1.4 million, or seven percent, based on higher average margins, partially offset by lower sales volume. Lower raw material costs led to the margin improvement. European gross profit increased $0.9 million based on improved average margins and higher sales volume, while Brazil’s gross profit dropped $0.2 million due to lower sales volume. Polyurethane systems gross profit declined $1.4 million, or 30 percent, from year-to-year. Lower sales volume and average margins led to the decrease. Higher unit overhead costs resulting from decreased production volumes led to the decline in average margins. Specialty products reported a decrease of $0.2 million in gross profit from year-to-year, mainly due to lower sales volume of higher margin products.

Operating income was $33.9 million, a $3.1 million, or ten percent, increase from 2001. Operating expenses, consisting of marketing, administrative and research and development expenses, increased $12.2 million, or 16 percent, to $88.6 million in 2002 from $76.4 million in 2001. Administrative expenses rose $7.1 million, or 25 percent, between years. U.S. expenses increased $4.7 million, and foreign operations expenses increased $2.4 million. The U.S. increase reflected higher enterprise resource planning (ERP) system implementation expense ($1.5 million), legal expense ($0.5 million) and depreciation expense ($1.0 million – primarily for the ERP system). A $1.9 million decrease in insurance recoveries also contributed to the U.S. increase. Stepan UK Ltd., which was first

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consolidated in the fourth quarter of 2001, accounted for $2.1 million of the foreign operations increase. Marketing expenses rose $3.0 million, or 12 percent, between years. The rise reflected a $1.2 million increase for Stepan UK. Higher U.S. payroll costs ($1.0 million) and bad debt expense ($0.6 million) also contributed. Research and development expenses increased $2.0 million, or nine percent, between years, primarily due to higher payroll costs.

Interest expenses rose $0.3 million, or five percent, from year-to-year. Lower overall borrowing rates and lower average debt levels were more than offset by decreased interest and investment income.

Philippine joint venture equity income increased to $3.6 million in 2002 from $1.9 million a year ago. The rise was due to royalty income and higher equity income generated by higher sales volume.

Pretax income increased $4.5 million, or 17 percent, to $30.3 million in 2002 from $25.8 million in 2001.

The effective tax rate was 33.5 percent in 2002 compared to 37.7 percent in 2001. The lower effective tax rate was primarily attributable to a decrease in the effective tax rate on European earnings and a higher U.S. tax benefit realized on export sales. A decrease in the overall state apportionment factor also contributed to the lower effective tax rate.

Net income for the year was $20.1 million, or $2.05 per diluted share, compared with $16.1 million, or $1.65 per diluted share, a year ago.

2001 Compared with 2000

Net sales for 2001 increased two percent from $698.9 million in 2000 to $711.5 million in 2001. Net sales by segment were as follows:

Surfactants are a principal ingredient in consumer and industrial cleaning products such as detergents, shampoos, lotions, toothpastes and cosmetics. Other applications include lubricating ingredients and emulsifiers for agricultural products, and plastics and composites.

Surfactants net sales, representing 79 percent of the Company’s revenue, increased $21.9 million, or four percent, due to a four percent rise in sales volume. Foreign operations accounted for the overall improvement, reporting a $32.5 million, or 27 percent, rise in net sales due to a 28 percent increase in sales volume. Approximately $14.7 million of the foreign improvement was attributable to the fourth quarter acquisition of Stepan UK Limited (formerly Manro Performance Chemicals) located in Stalybridge, UK. In addition, all other foreign subsidiaries reported increased net sales, primarily due to higher sales volumes. European operations, excluding the United Kingdom, posted a net increase of $8.6 million. Net sales for South American operations grew $4.5 million, while net sales for Mexico

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and Canada increased $2.6 million and $2.1 million, respectively. Domestic operations, which accounted for 73 percent of total surfactant revenues, reported a $10.6 million, or three percent, decline in net sales from $417.2 million in 2000 to $406.6 million in 2001. The decrease was due to a one percent drop in sales volume and a one percent decline in average selling prices. Lower demand for laundry and cleaning products and increased market competition led to the decline. The economic slowdown adversely impacted sales volume of higher margin industrial surfactants.

The polymers product group includes phthalic anhydride (PA), polyurethane systems and polyurethane polyols. PA is used in polyester alkyd resins and plasticizers for applications in construction materials and components of automotive, boating and other consumer products. Polyurethane systems provide thermal insulation and are sold to the construction, industrial and appliance markets. Polyurethane polyols are used in the manufacture of laminate board for the construction industry. Polyurethane polyols are also sold to the appliance, coatings, adhesives, sealants and elastomers markets.

Polymer net sales, accounting for 18 percent of the Company’s revenue, decreased $13.1 million, or nine percent, from $140.8 million in 2000 to $127.7 million in 2001. The decline was due to a 13 percent drop in sales volume, driven primarily by a slowdown in the U.S. economy. PA’s net sales decreased 21 percent to $32.8 million for 2001 from $41.4 million in 2000. A 24 percent decline in sales volume accounted for the decrease. Polyurethane systems net sales fell 15 percent to $19.4 million for 2001 from $22.7 million in 2000. A drop in sales volume accounted for the decline and more than offset an increase in average selling prices. Globally, polyurethane polyols net sales decreased $1.2 million, or one percent, between years from $76.7 million in 2000 to $75.5 million in 2001. Domestic net sales fell less than one percent due to a five percent decrease in sales volume, partially offset by an increase in average selling prices. European operations reported a decline in revenue due to an 11 percent drop in average selling prices, which offset a two percent gain in sales volume. Continued market pressures led to the average selling price drop.

Specialty products include flavors, emulsifiers and solubilizers used in the food and pharmaceutical industries. Net sales for the year were $24.9 million, a rise of $3.7 million, or 18 percent, over 2000. Higher average selling prices coupled with a slightly higher sales volume led to the growth in revenue.

Gross profit decreased to $107.2 million in 2001 from $112.0 million in 2000. Surfactants gross profit was down $4.8 million, or six percent, from $79.3 million in 2000 to $74.5 million in 2001. Domestic operations reported an $8.9 million decline in gross profit due primarily to a drop in average margins. Lower sales volume also contributed. The decrease in average margins was mainly due to weaker sales mix and higher energy costs. Higher margin industrial surfactants sales volume declined as the economy slowed down through the final quarter of 2001. Gross profit for foreign surfactants increased $4.1 million, or 29 percent, from year-to-year. A 28 percent improvement in sales volume caused the increase in gross profit. The newly acquired United Kingdom subsidiary contributed $1.9 million of the foreign increase. European operations, excluding United Kingdom, and South American operations contributed $1.0 million and $0.7 million, respectively, of the gross profit gain. Polymers gross profit declined $4.1 million, or 15 percent, from $27.9 million in 2000 to $23.8 million in 2001. Gross profit for PA declined 50 percent to $3.2 million in 2001 from $6.4 million in 2000. Lower sales volume and lower average margins accounted for the drop. Higher unit overhead costs resulting from decreased production volume coupled with some price reductions resulting from competitive situations led to the declined average margins. Global polyurethane polyols gross profit fell $0.3 million, or two percent, between years. Domestic operations reported an increase of $0.2 million, or one percent, in

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gross profit due to improved average margins that more than offset lower sales volume. Foreign operations gross profit fell $0.6 million on reduced average margins that more than offset higher sales volume. Polyurethane systems gross profit declined eight percent on lower sales volume. Improved average margins due to an average selling price increase and favorable sales mix partially offset the impact of lower sales volume. Specialty products reported an increase of $4.1 million in gross profit from year-to-year. The improvement was due to higher sales volume of higher margin products.

Operating income was $30.8 million, a $0.5 million, or two percent, decrease in comparison with 2000. Operating expenses, consisting of marketing, administrative and research and development expenses, decreased five percent between years. Administrative expenses declined $4.2 million, or 13 percent, from those reported in the prior year. A $7.5 million decline in legal and environmental expense, partially offset by $4.7 million of 2001 expense for the implementation of an enterprise resource planning system, accounted for most of the decrease between years. The drop in legal and environmental expense was primarily due to $6.1 million of prior year expense related to the Company’s Maywood, New Jersey, site that was non-recurring in 2001. In addition, current year expense was reduced by insurance recoveries received of $2.0 million, somewhat offset by a $0.5 million year-to-year increase in general legal expenses. Marketing expenses declined one percent between years and research and development expenses remained almost unchanged.

Interest expenses declined nine percent from year-to-year due to lower overall borrowing rates coupled with lower average debt levels, partially offset by decreased investment income.

Philippine joint venture equity income rose $1.2 million between years. The improvement was largely due to reduced foreign exchange losses resulting from a devaluation of the Philippine peso in 2000.

Pretax income increased $1.3 million, or five percent, to $25.8 million in 2001 from $24.5 million in 2000.

The effective tax rate was 37.7 percent in 2001 compared to 38.5 percent in 2000. The lower effective tax rate was primarily attributable to Philippine tax benefits realized during 2001 (see Note 7 of the Notes to the Consolidated Financial Statements for a reconciliation of the statutory rate to the effective tax rate).

Net income for the year was $16.1 million, or $1.65 per diluted share, compared with $15.1 million, or $1.53 per diluted share, a year ago. The acquisition of Stepan UK Limited added $0.4 million to net income, or $0.04 per diluted share.

Fourth Quarter 2002 Compared with 2001

For the quarter ended December 31, 2002, the Company reported net income of $2.4 million, or a $0.25 per diluted share, compared with $0.1 million, or a $0.01 loss per diluted share, in the fourth quarter of 2001. Net sales increased four percent to $185.2 million in the fourth quarter of 2002 from $178.1 million a year ago. Net sales for surfactants increased $6.2 million, or four percent. Both foreign and domestic surfactants reported an increase in revenues. European operations accounted for most of the increase. The effect of favorable exchange rate fluctuations coupled with improved sales volume led to the net sales growth. Domestic surfactants net sales increased due to a rise in average selling prices on more favorable sales mix. Surfactants gross profit increased $3.1 million, or 18 percent, in the fourth quarter of 2002 from the fourth quarter of 2001. Higher average margins led to the increase. Lower raw material costs accounted for most of the improvement. Gross profit for polymers increased $0.1 million, or two percent, between quarters due to an increase in sales volume,

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which more than offset a decline in average margins. Gross profit for specialty products declined $1.1 million between quarters. Lower sales volume of higher margin products led to the decrease. Operating expenses declined $1.3 million, or five percent, between quarters. Administrative expenses dropped $3.4 million, or 27 percent, in comparison with the fourth quarter of 2001. A $3.4 million decrease of deferred compensation expenses, coupled with a $1.9 million reduction in expenses associated with the implementation of an enterprise resource planning system, accounted for the decrease. The decline was partially offset by increases in legal ($0.5 million), payroll costs ($0.5 million), depreciation ($0.5 million), and audit expenses ($0.4 million). Marketing expenses increased $1.5 million, or 24 percent, from quarter-to-quarter. Increased payroll costs and bad debt provision led to the rise. Research and development expenses increased $0.6 million, or ten percent, between quarters. Philippine joint venture equity income increased $0.4 million, or 57 percent, from quarter-to-quarter. The rise was due to higher equity income based on improved sales volume.

Interest expenses increased $0.5 million between quarters. The increase was due to higher overall borrowing rates, partially offset by lower debt levels.

Liquidity and Financial Condition

Net cash from operations for 2002 totaled $46.1 million compared to $54.1 million for 2001. Working capital required the use of $12.1 million for the current year, compared to a cash use of $0.6 million last year. During 2002, accounts receivable decreased by $3.9 million due primarily to improved current year-end collections. The Company increased its inventories by $8.6 million to support customer service levels. Accounts payable and accrued liabilities decreased by $5.8 million and other current assets increased by $1.6 million.

Capital spending, excluding acquisitions, totaled $36.1 million in 2002 compared to $34.0 million for 2001. Current year expenditures included $7.1 million for an enterprise resource planning (ERP) system. Looking ahead, capital expenditures are projected to increase in 2003 due to higher non-ERP spending.

Consolidated debt was down by $2.6 million from year to year, from $120.3 million to $117.7 million. At December 31, 2002, the ratio of long-term debt to long-term debt plus shareholders’ equity was 39.6 percent, compared to 41.5 percent one year earlier.

The Company maintains contractual relationships with its domestic banks that provide for revolving credit of up to $60 million, which may be drawn upon as needed for general corporate purposes through May 2, 2007 under a revolving credit agreement. At December 31, 2002, there were no borrowings under this revolving credit agreement. The Company also meets short-term liquidity requirements through uncommitted domestic bank lines of credit.

The Company’s foreign subsidiaries maintain committed and uncommitted bank lines of credit in their respective countries to meet working capital requirements as well as to fund capital expenditure programs and acquisitions.

The Company anticipates that cash from operations and from committed credit facilities will be sufficient to fund anticipated capital expenditures, dividends and other planned financial commitments for the foreseeable future. Any substantial acquisitions would require additional funding.

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Outlook

The uncertain economy and its impact on raw material costs and the increased internal surfactant production capacity among some U.S. customers will provide a challenge for 2003 earnings growth prospects. On the positive side, there has been increased interest in the Company’s fabric softener technology, which should be commercialized during 2003. In addition, ERP system implementation costs should decline by approximately $2.8 million after tax. The Company will continue to pursue profitable global niche opportunities that complement or enhance its global capabilities.

Environmental and Legal Matters

The Company is subject to extensive federal, state and local environmental laws and regulations. Although the Company’s environmental policies and practices are designed to ensure compliance with these laws and regulations, future developments and increasingly stringent environmental regulation could require the Company to make additional unforeseen environmental expenditures. The Company will continue to invest in the equipment and facilities necessary to comply with existing and future regulations. During 2002, the Company’s expenditures for capital projects related to the environment were $1.5 million. These projects are capitalized and depreciated over their estimated useful lives, which is typically 10 years. Recurring costs associated with the operation and maintenance of facilities for waste treatment and disposal and managing environmental compliance in ongoing operations at our manufacturing locations were approximately $8.5 million for 2002 and $7.9 million for 2001. While difficult to project, it is not anticipated that these recurring expenses will increase significantly in the future.

The Company has been named by the government as a potentially responsible party at 18 waste disposal sites where cleanup costs have been or may be incurred under the federal Comprehensive Environmental Response, Compensation and Liability Act and similar state statutes. In addition, damages are being claimed against the Company in general liability actions for alleged personal injury or property damage in the case of some disposal and plant sites. The Company believes that it has made adequate provisions for the costs it may incur with respect to the sites. It is the Company’s accounting policy to record liabilities when environmental assessments and/or remedial efforts are probable and the cost or range of possible costs can be reasonably estimated. When no amount within the range is a better estimate than any other amount, the minimum is accrued. Some of the factors on which the Company bases its estimates include information provided by feasibility studies, potentially responsible party negotiations and the development of remedial action plans. Because reported liabilities are recorded based on estimates, actual amounts could differ from those estimates. After partial remediation payments at certain sites, the Company has estimated a range of possible environmental and legal losses from $7.5 million to $35.1 million at December 31, 2002, compared to $7.4 million to $35.0 million at December 31, 2001. At December 31, 2002 the Company’s reserve was $17.6 million for legal and environmental matters compared to $17.0 million at December 31, 2001. During 2002, non-capital expenditures related to legal and environmental matters approximated $3.0 million compared to $2.6 million expended in 2001.

For certain sites, estimates cannot be made of the total costs of compliance or the Company’s share of such costs; accordingly, the Company is unable to predict the effect thereof on future results of operations. In the event of one or more adverse determinations in any annual or interim period, the impact on results of operations for those periods could be material. However, based upon the Company’s present belief as to its relative involvement at these sites, other viable entities’

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responsibilities for cleanup and the extended period over which any costs would be incurred, the Company believes that these matters will not have a material effect on the Company’s financial position. Certain of these matters are discussed in Item 3, Legal Proceedings, in the 2002 Form 10-K Annual Report and in other filings of the Company with the Securities and Exchange Commission, which are available upon request from the Company. See also Note 13, Contingencies, in the Notes to Consolidated Financial Statements for a summary of the environmental proceedings related to certain environmental sites.

Recent Accounting Pronouncements

In April 2001, the EITF released Issue No. 00-25, “Vendor Income Statement Characterization of Consideration Paid to a Reseller of the Vendor’s Products.” Issue No. 00-25 provides guidance regarding the reporting of consideration given by a vendor to a reseller of the vendor’s products. This issue requires certain considerations from vendor to a reseller of the vendor’s products be viewed: (a) as a reduction of the selling prices of the vendor’s products and, therefore, be recorded as a reduction of revenue when recognized in the vendor’s income statement, or (b) as a cost incurred by the vendor for assets or services received from the reseller and, therefore, be recorded as a cost or an expense when recognized in the vendor’s income statement. Issue No. 00-25 is effective for fiscal years beginning after December 15, 2001. The Company’s accounting policies have historically been consistent with the guidance provided in this issue; and, therefore, the adoption of Issue No.00-25 did not have an impact on the Company’s financial position or results of operations.

In June 2001, the FASB issued SFAS No. 141, “Business Combinations,” effective for acquisitions entered into after June 30, 2001. SFAS No. 141 requires the use of the purchase method of accounting for all transactions. The Company has applied the provisions of SFAS No. 141 to the September 13, 2001, acquisition of Manro Performance Chemicals in Stalybridge, UK, and the November 2002 acquisition of the quaternary biocides and specialty surfactants business from Pentagon Chemicals Specialties based in the United Kingdom. See Note 2, Acquisitions, in Notes to Consolidated Financial Statements.

In June 2001, the FASB issued SFAS No. 143, “Accounting for Asset Retirement Obligations”. SFAS No. 143, which is effective for fiscal years beginning after June 15, 2002, supersedes previous guidance for financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and the associated asset retirement costs. The statement applies to legal obligations associated with the retirement of long-lived assets that result from the acquisition, construction, development and/or the normal operation of a long-lived asset. The Company has determined that adoption of SFAS No. 143 will have no impact on its financial position or results of operations.

In August 2001, the FASB issued SFAS No. 144, “Accounting for the Impairment of Disposal of Long-Lived Assets”. This statement addresses financial accounting and reporting for the impairment or disposal of long-lived assets and supersedes SFAS No. 121, “Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed of.” SFAS No. 144 was effective January 1, 2002. Adoption of this standard did not have an impact on the Company’s financial position or results of operations.

In June 2002, the FASB issued SFAS No. 146, “Accounting for Costs Associated with Exit or Disposal Activities”. The standard requires companies to recognize costs associated with

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exit or disposal activities when they are incurred rather than at the date of a commitment to an exit or disposal plan. SFAS No. 146 is to be applied prospectively to exit or disposal activities initiated after December 31, 2002. Based on the information currently available, adoption of this standard is not expected to have an impact on the Company’s financial position or results of operations.

In December 2002, the FASB issued SFAS No. 148, “Accounting for Stock-Based Compensation – Transition and Disclosure”. This statement amends SFAS No. 123, “Accounting for Stock-Based Compensation,” to provide alternative methods of transition for a voluntary change to the fair value based method of accounting for stock-based employee compensation. In addition, this statement amends the disclosure requirements of SFAS No. 123 to require prominent disclosure about the method of accounting and the effect of the method used on reported results. SFAS No. 148 is effective for fiscal years ending after December 15, 2002. Adoption of this standard is not expected to have an impact on the Company’s financial position or results of operations, as the Company has decided not to adopt the fair value based method of accounting for stock-based compensation at this time.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk

FOREIGN CURRENCY EXCHANGE RISK

Because the Company operates in the global marketplace, its cash flows and operating results are exposed to foreign currency fluctuations. The Company manufactures and sells products in many foreign locations and, therefore, believes its currency exchange risk is well diversified. Except as noted below, substantially all the Company’s foreign subsidiaries’ financial instruments are denominated in their respective functional currencies. As such, exposure to exchange rate risk on foreign currency financial instruments is not considered significant. Gains or losses on unhedged foreign currency transactions are included in income.

The Company and its foreign subsidiaries periodically use short-term forward exchange contracts to limit the exposure of certain foreign currency transactions and balances to fluctuating exchange rates. As of December 31, 2002, the Company had no outstanding forward exchange contracts.

From time to time, the Company extends U.S. dollar denominated loans or extended trade receivables to its foreign subsidiaries. Gains or losses on such transactions are recorded in income. As of December 31, 2002, the Company had an outstanding loan balance of $8.9 million due from its European subsidiary and trade receivables of $1.5 million due from its Brazilian subsidiary. A hypothetical fluctuation of 10 percent in the exchange rate of the euro or the Brazilian real would result in a gain or loss of $0.9 million or $0.2 million, respectively.

INTEREST RATES

The Company’s debt was composed of fixed-rate and variable-rate borrowings totaling $104.5 million and $13.2 million, respectively, as of December 31, 2002. For 2003, it is projected that interest on variable-rate borrowings will comprise about 19 percent of the Company’s total interest expense. A 10 percent increase or decrease to short-term interest rates would be immaterial to the Company’s operating results or cash flow.

The fair value of the Company’s fixed-rate debt, including current maturities, was estimated to be $113.4 million as of December 31, 2002, which was approximately $8.9 million above the carrying value. Market risk was estimated as the potential increase to the fair value that would result from a hypothetical 10 percent decrease in the Company’s weighted average long-term borrowing rates at December 31, 2002, or $2.8 million. Such a rate decrease would be immaterial to future operating results or cash flow.

COMMODITY PRICE RISK

Certain raw materials used in the manufacture of the Company’s products are subject to price volatility caused by weather, petroleum prices and other unpredictable factors. In many cases, the Company has the ability to pass on raw material price increases to customers. Therefore, commodity financial instruments are generally not used for raw material purchases. Periodically, firm purchase commitments are entered into which fix the price of a specific commodity that will be delivered at a future time. Such commitments usually cover only a portion of the Company’s anticipated requirements. Commodity future and forward contracts are used to a limited extent,

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most often to aid in managing the Company’s utility costs. As of December 31, 2002, unrealized gains and losses related to such contracts were not material. A hypothetical 10 percent fluctuation in the price of commodities covered by firm commitments and forward contracts would have an immaterial effect on the Company’s financial position, results of operations and cash flow.

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Item 8. Financial Statements and Supplementary Data

The following statements and data are included in this item:

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Report of Management

Management Report on Financial Statements

The financial statements of Stepan Company and subsidiaries were prepared by and are the responsibility of management. The statements have been prepared in conformity with accounting principles generally accepted in the United States of America, which are appropriate in the circumstances and include some amounts that are based on management’s best estimates and judgments. The Board of Directors, through its Audit Committee, assumes an oversight role with respect to the preparation of the financial statements.

In meeting its responsibility for the reliability of the financial statements, the Company depends on its system of internal accounting control. The system is designed to provide reasonable assurance that assets are safeguarded and that transactions are executed as authorized and are properly recorded. The system is augmented by written policies and procedures and an internal audit department.

The Audit Committee of the Board of Directors, composed solely of directors who are not officers or employees of the Company, meets regularly with management, with the Company’s internal auditors and with its independent certified public accountants to discuss accounting and auditing matters, internal accounting controls and the quality of financial reporting. The independent auditors and the internal auditors have free access to the Audit Committee, without management’s presence.

F. Quinn Stepan

Chairman of the Board and Chief Executive Officer

F. Quinn Stepan, Jr.

President and Chief Operating Officer

James E. Hurlbutt

Vice President & Corporate Controller

February 10, 2003

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Independent Auditors’ Report

To the Board of Directors and Stockholders of Stepan Company

Northfield, Illinois

We have audited the accompanying consolidated balance sheets of Stepan Company and subsidiaries (the “Company”) as of December 31, 2002 and 2001 and the related consolidated statements of income, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2002. Our audits also included the financial statement schedule listed in the Index at Item 15. These financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on the financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. 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, such consolidated financial statements present fairly, in all material respects, the financial position of Stepan Company and subsidiaries as of December 31, 2002 and 2001 and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2002, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

As discussed in Note 3, effective January 1, 2002 the Company changed its method of accounting for goodwill and intangible assets upon adoption of Statement of Financial Accounting Standards No. 142, “Goodwill and Other Intangible Assets.”

DELOITTE & TOUCHE LLP

Chicago, Illinois

February 10, 2003

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Stepan Company

Consolidated Balance Sheets

December 31, 2002 and 2001

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

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Stepan Company

Consolidated Statements of Income

For the years ended December 31, 2002, 2001 and 2000

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

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Stepan Company

Consolidated Statements of Cash Flows

For the years ended December 31, 2002, 2001 and 2000