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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549



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FORM 10-Q



|x |  | Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
|- |  | ---------------------------------------------------------------------------------------



For the quarterly period ended March 31, 2003



or



| ̈ |  | Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
|- |  | ----------------------------------------------------------------------------------------



For the transition period from
 to



Commission file number: 1-14601



Arch Chemicals, Inc.

(Exact name of registrant as specified in its charter)



|Virginia                                                      |  | 06-1526315                            
|------------------------------------------------------------- |  | --------------------------------------
|(State or other jurisdiction ofincorporation or organization) |  | (I.R.S. EmployerIdentification Number)
|                                                             
|501 Merritt 7, Norwalk, CT                                    |  | 06851                                 
|(Address of principal executive offices)                      |  | (Zip Code)                            



(203)
229-2900

(Registrants telephone number, including area code)



---



Indicate by check mark 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 reports), and (2) has been subject to such filing requirements for the past 90
days:    YES  x    NO ̈



Indicate by check mark whether the registrant is
an accelerated filer (as defined in Rule 12b-2 of the Exchange Act):     YES  x    NO ̈



As of April 30, 2003, there were 22,457,781 outstanding shares of the registrants common stock.



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##### Table of Contents



ARCH
CHEMICALS, INC.



INDEX



|         |  |                                                                                                    |  | Page Numbers
|-------- |  | -------------------------------------------------------------------------------------------------- |  | ------------
|        
|PART I.  |  | FINANCIAL INFORMATION                                                                              |  |             
|        
|Item 1.  |  | Financial Statements                                                                               |  | 2           
|        
|         |  | Condensed Consolidated Balance Sheets as of March 31, 2003 and December 31, 2002                   |  | 2           
|        
|         |  | Condensed Consolidated Statements of Income for the three months ended March 31, 2003 and 2002     |  | 3           
|        
|         |  | Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2003 and 2002 |  | 4           
|        
|         |  | Notes to Condensed Consolidated Financial Statements                                               |  | 5-14        
|        
|Item 2.  |  | Managements Discussion and Analysis of Financial Condition and Results of Operations              |  | 15-22       
|        
|Item 3.  |  | Quantitative and Qualitative Disclosures About Market Risk                                         |  | 23          
|        
|Item 4.  |  | Controls and Procedures                                                                            |  | 24          
|        
|PART II. |  | OTHER INFORMATION                                                                                  |  |             
|        
|Item 6.  |  | Exhibits and Reports on Form 8-K                                                                   |  | 25          
|        
|         |  | Signatures                                                                                         |  | 26          
|        
|         |  | Certifications                                                                                     |  | 27-30       



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##### Table of Contents



PART
I.    FINANCIAL INFORMATION

Item 1.    Financial Statements



ARCH CHEMICALS, INC.



Condensed Consolidated Balance Sheets

(In millions, except per share amounts)



|                                                               |  | March 31, 2003 |       |   | December 31, 2002 |  
|-------------------------------------------------------------- |  | -------------- | ----- | - | ----------------- | -
|                                                               |  | (Unaudited)    |       |   |                   |  
|ASSETS                                                         |  |                |       |   |                   |  
|Current assets:                                                |  |                |       |   |                   |  
|Cash and cash equivalents                                      |  | $              | 9.7   |   |                   | $
|Accounts receivable, net                                       |  |                | 118.5 |   |                   |  
|Short-term investment                                          |  |                | 25.3  |   |                   |  
|Inventories, net                                               |  |                | 156.7 |   |                   |  
|Other current assets                                           |  |                | 35.4  |   |                   |  
|Assets held for sale                                           |  |                | 33.3  |   |                   |  
|                                                               |  |                |       |   |                   |  
|Total current assets                                           |  |                | 378.9 |   |                   |  
|Investments and advancesaffiliated companies at equity        |  |                | 29.9  |   |                   |  
|Property, plant and equipment, net                             |  |                | 312.1 |   |                   |  
|Goodwill                                                       |  |                | 136.1 |   |                   |  
|Other intangibles                                              |  |                | 63.1  |   |                   |  
|Other assets                                                   |  |                | 51.5  |   |                   |  
|                                                               |  |                |       |   |                   |  
|Total assets                                                   |  | $              | 971.6 |   |                   | $
|                                                               |  |                |       |   |                   |  
|LIABILITIES AND SHAREHOLDERS EQUITY                           |  |                |       |   |                   |  
|Current liabilities:                                           |  |                |       |   |                   |  
|Short-term borrowings                                          |  | $              | 44.9  |   |                   | $
|Accounts payable                                               |  |                | 137.6 |   |                   |  
|Accrued liabilities                                            |  |                | 74.6  |   |                   |  
|Liabilities associated with assets held for sale               |  |                | 10.4  |   |                   |  
|                                                               |  |                |       |   |                   |  
|Total current liabilities                                      |  |                | 267.5 |   |                   |  
|Long-term debt                                                 |  |                | 219.7 |   |                   |  
|Other liabilities                                              |  |                | 154.3 |   |                   |  
|                                                               |  |                |       |   |                   |  
|Total liabilities                                              |  |                | 641.5 |   |                   |  
|Commitments and contingencies                                  |  |                |       |   |                   |  
|Shareholders equity:                                          |  |                |       |   |                   |  
|Common stock, par value $1 per share, Authorized 100.0 shares: |  |                |       |   |                   |  
|22.4 shares issued and outstanding                             |  |                | 22.4  |   |                   |  
|Additional paid-in capital                                     |  |                | 406.2 |   |                   |  
|Accumulated deficit                                            |  |                | (8.1  | ) |                   |  
|Accumulated other comprehensive loss                           |  |                | (90.4 | ) |                   |  
|                                                               |  |                |       |   |                   |  
|Total shareholders equity                                     |  |                | 330.1 |   |                   |  
|                                                               |  |                |       |   |                   |  
|Total liabilities and shareholders equity                     |  | $              | 971.6 |   |                   | $
|                                                               |  |                |       |   |                   |  



The
accompanying Notes to Condensed Consolidated Financial Statements are an integral part of the condensed consolidated financial statements.



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ARCH CHEMICALS, INC.



Condensed Consolidated Statements of Income

(Unaudited)

(In millions, except per share amounts)



|                                                                                                           |  | Three Months Ended March 31, |      
|---------------------------------------------------------------------------------------------------------- |  | ---------------------------- | -----
|                                                                                                           |  | 2003                         |      
|Sales                                                                                                      |  | $                            | 232.5
|Cost of goods sold                                                                                         |  |                              | 167.5
|Selling and administration                                                                                 |  |                              | 52.7 
|Amortization of intangibles                                                                                |  |                              | 0.6  
|Research and development                                                                                   |  |                              | 5.7  
|Equity in (earnings) of affiliated companies                                                               |  |                              | (1.9 
|Restructuring                                                                                              |  |                              | (0.8 
|                                                                                                           |  |                              |      
|Income (loss) from continuing operations before interest, taxes and cumulative effect of
accounting change |  |                              | 8.7  
|Interest expense                                                                                           |  |                              | 4.3  
|Interest income                                                                                            |  |                              | 0.2  
|                                                                                                           |  |                              |      
|Income (loss) from continuing operations before taxes and cumulative effect of
accounting change           |  |                              | 4.6  
|Income tax expense (benefit)                                                                               |  |                              | 1.7  
|                                                                                                           |  |                              |      
|Income (loss) from continuing operations before cumulative effect of accounting
change                     |  |                              | 2.9  
|Loss from discontinued operations, net of tax                                                              |  |                              | (1.1 
|Loss on sale of DanChem, net of tax                                                                        |  |                              |     
|Cumulative effect of accounting change, net of tax                                                         |  |                              | (0.4 
|                                                                                                           |  |                              |      
|Net income (loss)                                                                                          |  | $                            | 1.4  
|                                                                                                           |  |                              |      
|Basic and diluted income (loss) per common share:                                                          |  |                              |      
|Continuing operations before cumulative effect of accounting change                                        |  | $                            | 0.13 
|Loss from discontinued operations                                                                          |  |                              | (0.05
|Loss on sale of DanChem                                                                                    |  |                              |     
|Cumulative effect of accounting change                                                                     |  |                              | (0.02
|                                                                                                           |  |                              |      
|Basic and diluted income (loss) per common share                                                           |  | $                            | 0.06 
|                                                                                                           |  |                              |      
|Weighted average common shares outstanding:                                                                |  |                              |      
|Basic                                                                                                      |  |                              | 22.5 
|                                                                                                           |  |                              |      
|Diluted                                                                                                    |  |                              | 22.5 
|                                                                                                           |  |                              |      
|Dividends declared per share                                                                               |  | $                            | 0.20 
|                                                                                                           |  |                              |      



The
accompanying Notes to Condensed Consolidated Financial Statements are an integral part of the condensed consolidated financial statements.



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ARCH CHEMICALS, INC.



Condensed Consolidated Statements of Cash Flows

(Unaudited)

(In millions)



|                                                                                                                        |  | Three Months Ended March 31, |      
|----------------------------------------------------------------------------------------------------------------------- |  | ---------------------------- | -----
|                                                                                                                        |  | 2003                         |      
|Operating activities                                                                                                    |  |                              |      
|Net income (loss)                                                                                                       |  | $                            | 1.4  
|Adjustments to reconcile net income (loss) to net cash and cash equivalents provided by
(used in) operating activities: |  |                              |      
|Loss from discontinued operations                                                                                       |  |                              | 1.1  
|Loss on sale of DanChem                                                                                                 |  |                              |     
|Cumulative effect of accounting change                                                                                  |  |                              | 0.4  
|Equity in earnings of affiliates                                                                                        |  |                              | (1.9 
|Depreciation                                                                                                            |  |                              | 13.0 
|Amortization of intangibles                                                                                             |  |                              | 0.6  
|Deferred taxes                                                                                                          |  |                              | (0.1 
|Restructuring                                                                                                           |  |                              | (0.8 
|Restructuring payments                                                                                                  |  |                              | (1.7 
|Changes in assets and liabilities, net of purchase and sale of
businesses:                                              |  |                              |      
|Sale of accounts receivable                                                                                             |  |                              | 12.7 
|Receivables                                                                                                             |  |                              | (42.0
|Inventories                                                                                                             |  |                              | (9.9 
|Other current assets                                                                                                    |  |                              | (2.1 
|Accounts payable and accrued liabilities                                                                                |  |                              | (8.3 
|Noncurrent liabilities                                                                                                  |  |                              | 3.0  
|Other operating activities                                                                                              |  |                              | 0.2  
|                                                                                                                        |  |                              |      
|Net operating activities from continuing operations                                                                     |  |                              | (34.4
|Change in net assets held for sale                                                                                      |  |                              | (2.1 
|                                                                                                                        |  |                              |      
|Net operating activities                                                                                                |  |                              | (36.5
|                                                                                                                        |  |                              |      
|Investing activities                                                                                                    |  |                              |      
|Capital expenditures                                                                                                    |  |                              | (3.9 
|Proceeds from sale of business                                                                                          |  |                              |     
|Other investing activities                                                                                              |  |                              | (0.3 
|                                                                                                                        |  |                              |      
|Net investing activities                                                                                                |  |                              | (4.2 
|                                                                                                                        |  |                              |      
|Financing activities                                                                                                    |  |                              |      
|Long-term debt borrowings (repayments), net                                                                             |  |                              | (0.7 
|Short-term debt borrowings (repayments), net                                                                            |  |                              | 42.5 
|Issuance of unsecured senior notes                                                                                      |  |                              |     
|Dividends paid                                                                                                          |  |                              | (4.5 
|Other financing activities                                                                                              |  |                              | 0.4  
|                                                                                                                        |  |                              |      
|Net financing activities                                                                                                |  |                              | 37.7 
|                                                                                                                        |  |                              |      
|Effect of exchange rate changes on cash and cash equivalents                                                            |  |                              | 0.5  
|                                                                                                                        |  |                              |      
|Net increase (decrease) in cash and cash equivalents                                                                    |  |                              | (2.5 
|Cash and cash equivalents, beginning of year                                                                            |  |                              | 12.2 
|                                                                                                                        |  |                              |      
|Cash and cash equivalents, end of period                                                                                |  | $                            | 9.7  
|                                                                                                                        |  |                              |      
|Supplemental cash flow information                                                                                      |  |                              |      
|Taxes paid (refunds), net                                                                                               |  | $                            | 1.3  
|                                                                                                                        |  |                              |      
|Interest paid                                                                                                           |  | $                            | 8.2  
|                                                                                                                        |  |                              |      



The
accompanying Notes to Condensed Consolidated Financial Statements are an integral part of the condensed consolidated financial statements.



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





1.    Basis of Presentation



These condensed consolidated financial statements have been prepared by Arch Chemicals, Inc. (including its consolidated subsidiaries, the Company), without audit, pursuant to the rules and regulations of the
Securities and Exchange Commission and, in the opinion of the Company, reflect all adjustments (consisting of normal accruals) which are necessary to present fairly the results for interim periods. Certain information and footnote disclosures
normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations; however, the Company believes that
the disclosures are adequate to make the information presented not misleading. It is suggested that these condensed consolidated financial statements be read in conjunction with the financial statements, accounting policies and the notes thereto and
managements discussion and analysis of financial condition and results of operations included in the Companys Form 10-K for the year ended December 31, 2002. The Companys Treatment segment is seasonal in nature, in particular its
HTH water products business as its products are primarily used in the U.S. residential pool market. Therefore, the results of operations for the Company and in particular the HTH water products business for the three months ended March 31, 2003, are
not necessarily indicative of the results to be expected for the entire fiscal year.



2.    Earnings Per Share



Basic earnings per share are computed by dividing net income by the weighted average number of common shares outstanding. Diluted earnings per share reflect the dilutive effect of stock options. Stock
options of approximately 2.3 and 1.0 million with exercise prices greater than the average market price of the Companys common stock are not included in the computation of diluted earnings per share for the three months ended March 31, 2003
and 2002, respectively. In addition, 1.4 million stock options were excluded from the computation of diluted weighted average common shares outstanding due to the loss from continuing operations for the three months ended March 31, 2002.



|                                                                            |  | Three Months Ended March 31,
|--------------------------------------------------------------------------- |  | ----------------------------
|                                                                            |  | 2003                        
|Basic                                                                       |  | 22.5                        
|Common equivalent shares from stock options using the treasury stock
method |  |                            
|                                                                            |  |                             
|Diluted                                                                     |  | 22.5                        
|                                                                            |  |                             



3.    Stock Options



The Company accounts for stock-based compensation under Statement of Financial Accounting Standards No. 123, Accounting for Stock-Based Compensation (SFAS 123). As allowed under SFAS 123, the Company has
chosen to measure and recognize stock-based compensation cost using the intrinsic value method, in accordance with APB No. 25, Accounting for Stock Issued to Employees.



The fair value of each Arch option granted during the first three months of 2003 and 2002 was estimated on
the date of grant using the Black-Scholes option pricing model. Pro forma net income (loss) and basic and diluted earnings (loss) per share for the three months ended 2003 and 2002 are listed below:



|                                                      |  | Three Months Ended March 31, |     
|----------------------------------------------------- |  | ---------------------------- | ----
|                                                      |  | 2003                         |     
|Net income (loss), as reported                        |  | $                            | 1.4 
|Stock-based employee compensation expense, net of tax |  |                              | (0.2
|                                                      |  |                              |     
|Pro forma net income (loss)                           |  | $                            | 1.2 
|                                                      |  |                              |     
|                                                     
|Earnings (loss) per share:                            |  |                              |     
|Basic and dilutedas reported                         |  | $                            | 0.06
|Basic and dilutedpro forma                           |  | $                            | 0.05



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





4.    Accounts Receivable/Short-Term Investment



In March 2002, the Company completed arrangements to sell, without recourse, certain accounts receivable through its wholly-owned subsidiary, Arch Chemicals Receivables Corp., a special-purpose
corporation. As of March 31, 2003, the Company had sold $46.2 of participation interests in $75.4 of accounts receivable. The fair value of the retained undivided interest of $25.3 is classified as a held-to-maturity debt security and is reflected
as Short-term Investment on the accompanying Condensed Consolidated Balance Sheet. The proceeds of the sale were used to reduce borrowings. The costs of the program, including certain one-time fees in 2002, for the three months ended March 31, 2003
and 2002 of $0.2 and $0.6, respectively, are included in Selling and Administration expenses in the accompanying Condensed Consolidated Statements of Income. Fair value of the retained undivided interest includes a reserve for credit losses and has
not been discounted due to the short-term nature of the underlying financial assets. The Company has not recorded an asset or liability related to the servicing responsibility retained as the fees earned for servicing are estimated to approximate
fair value.



5.    Inventories



|                           |  | March 31, 2003 |       |   | December 31, 2002 |  
|-------------------------- |  | -------------- | ----- | - | ----------------- | -
|Raw materials and supplies |  | $              | 44.1  |   |                   | $
|Work in process            |  |                | 15.0  |   |                   |  
|Finished goods             |  |                | 141.3 |   |                   |  
|                           |  |                |       |   |                   |  
|Inventories, gross         |  |                | 200.4 |   |                   |  
|LIFO reserve               |  |                | (43.7 | ) |                   |  
|                           |  |                |       |   |                   |  
|Inventories, net           |  | $              | 156.7 |   |                   | $
|                           |  |                |       |   |                   |  



Approximately half of the Companys inventories are valued by the dollar value last-in, first-out (LIFO) method of inventory accounting. Costs of other inventories are determined principally by the first-in,
first-out method. Elements of costs in inventories include raw materials, direct labor and manufacturing overhead. Inventories under the LIFO method are based on an annual determination of quantities and costs as of the year-end; therefore, the
condensed consolidated financial statements at March 31, 2003 reflect certain estimates relating to projected inventory quantities and costs at December 31, 2003.



6.    Assets Held For Sale/Discontinued Operations



The Company has accounted for the Hickson International
Limited (Hickson) organics division (Castleford, England and Danville, Virginia operations) in accordance with Statement of Financial Accounting Standard No. 144, Accounting for Impairment or Disposal of Long-Lived Assets
(SFAS 144) effective January 1, 2002. SFAS 144 addresses financial accounting and reporting for the impairment or disposal of long-lived assets. It also extends the reporting requirements to report separately as discontinued operations,
components of an entity that have either been disposed of or classified as held for sale. The Company has presented separately, the assets and liabilities of the discontinued operations on the face of the condensed consolidated financial statements.



The Hickson organics business has been valued on
the accompanying Condensed Consolidated Balance Sheets at its estimated net selling price. The amounts actually realized (including future operating results) by the Company could differ materially from the amounts estimated in the financial
statements and could result in future gains or losses from discontinued operations or from disposal of this business. Factors that could influence the ultimate outcome include, but are not limited to, general economic conditions, the Companys
ability to dispose of the business within the time, price and manner originally estimated, the retention of key customers during the divestiture period and environmental matters.



The Company continues to actively work on completing the sale of these assets during 2003. However, due to
the current market conditions, it is possible that they may not be sold. If the sale does not occur and if the Company does not continue to meet all of the requirements of SFAS 144, the Company may be required to discontinue its current accounting
and include the results of this division in continuing operations. As a result, the results of



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)



operations, cash flows and balance sheet information of the organics division would be included in all
applicable line items of the Companys consolidated financial statements rather than the current treatment.



Balance Sheet



Assets held for sale at March 31, 2003 and December 31, 2002 include the following:



|                                                    |  | March 31, 2003 |      | December 31, 2002
|--------------------------------------------------- |  | -------------- | ---- | -----------------
|Assets of Hickson organics Castleford business      |  | $              | 29.3 |                  
|Land                                                |  |                | 4.0  |                  
|                                                    |  |                |      |                  
|Assets held for sale                                |  |                | 33.3 |                  
|Liabilities of Hickson organics Castleford business |  |                | 10.4 |                  
|                                                    |  |                |      |                  
|Liabilities associated with assets held for sale    |  |                | 10.4 |                  
|Net assets held for sale                            |  | $              | 22.9 |                  
|                                                    |  |                |      |                  



The
major classes of assets and liabilities classified as assets held for sale of the Hickson organics business based in Castleford at March 31, 2003 and December 31, 2002 are as follows:



|                                                                     |  | March 31, 2003 |      | December 31, 2002
|-------------------------------------------------------------------- |  | -------------- | ---- | -----------------
|Accounts receivable, net                                             |  | $              | 6.0  |                  
|Inventory                                                            |  |                | 12.5 |                  
|Property, plant and equipment, net                                   |  |                | 10.8 |                  
|                                                                     |  |                |      |                  
|Total assets associated with assets held for sale                    |  |                | 29.3 |                  
|Accounts payable and accrued liabilities                             |  |                | 10.3 |                  
|Other liabilities                                                    |  |                | 0.1  |                  
|                                                                     |  |                |      |                  
|Total liabilities associated with assets held for sale               |  |                | 10.4 |                  
|Net assets held for sale of the Hickson organics Castleford business |  | $              | 18.9 |                  
|                                                                     |  |                |      |                  



Income (Loss) From
Discontinued Operations



Loss From
Discontinued Operations for the three months ended March 31, 2003 and 2002 includes the following:



|                                                     |  | Three Months Ended March, 31 |     
|---------------------------------------------------- |  | ---------------------------- | ----
|                                                     |  | 2003                         |     
|SalesCastleford business                            |  | $                            | 12.2
|SalesDanChem business                               |  |                              |    
|                                                     |  |                              |     
|Total sales of discontinued operations               |  | $                            | 12.2
|                                                     |  |                              |     
|Earnings (loss) before interest and taxesCastleford |  | $                            | (0.9
|Earnings (loss) before interest and taxesDanChem    |  |                              |    
|Restructuring chargeCastleford                      |  |                              |    
|Reserve for losses                                   |  |                              |    
|Interest expense allocatedCastleford                |  |                              | (0.3
|Interest expense allocatedDanChem                   |  |                              |    
|Tax benefit (expense)                                |  |                              | 0.1 
|                                                     |  |                              |     
|Loss from discontinued operations                    |  | $                            | (1.1
|                                                     |  |                              |     



Valuation reserves are established for capital spending that the Company does not expect to be able to recover upon sale of the business based upon current market conditions.



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





In March
2002, the Company completed the sale of its DanChem operations in Danville, Virginia, which was part of the Hickson organics division, for approximately $25 and recorded a loss on the disposal of $1.5, net of a tax benefit of $0.9. Proceeds from the
sale of these assets have been used to pay down debt.



Operating results for the three months ended March 31, 2002 include a $0.6 restructuring charge, which related to headcount reductions of approximately 25 employees, of whom all have been terminated as of March 31, 2003. In addition,
it includes a $1.4 charge for estimated losses to be incurred through the third quarter 2002.



Cash used by the operations of assets held for sale was $2.1 and $4.0 for the three months ended March 31, 2003 and 2002, respectively. The lower use in 2003 was due to improved working capital in the
Hickson organics Castleford business.



7.    Goodwill and Other Intangibles



The changes in the carrying amount of goodwill for the three months ended March 31, 2003 are as follows:



|                           |  | Microelectronics Materials |      | HTH Water Products |   | Personal Care and Industrial Biocides |  | Wood Protection and Industrial Coatings |      | Performance Products |   | Total
|-------------------------- |  | -------------------------- | ---- | ------------------ | - | ------------------------------------- |  | --------------------------------------- | ---- | -------------------- | - | -----
|Balance, December 31, 2002 |  | $                          | 26.8 |                    | $ | 2.2                                   |  | $                                       | 30.3 |                      | $ | 72.2 
|Other                      |  |                            |     |                    |   |                                      |  |                                         |     |                      |   | 0.2  
|                           |  |                            |      |                    |   |                                       |  |                                         |      |                      |   |      
|Balance, March 31, 2003    |  | $                          | 26.8 |                    | $ | 2.2                                   |  | $                                       | 30.3 |                      | $ | 72.4 
|                           |  |                            |      |                    |   |                                       |  |                                         |      |                      |   |      



The
gross carrying amount and accumulated amortization for other intangible assets as of March 31, 2003 and December 31, 2002 are as follows:



|                                        |  | March 31, 2003        |      | December 31, 2002       
|--------------------------------------- |  | --------------------- | ---- | ------------------------
|                                        |  | Gross Carrying Amount |      | Accumulated Amortization
|Patents                                 |  | $                     | 6.7  |                         
|Technology                              |  |                       | 11.7 |                         
|Customer lists                          |  |                       | 23.8 |                         
|Other                                   |  |                       | 21.0 |                         
|                                        |  |                       |      |                         
|Total amortizable other intangibles     |  |                       | 63.2 |                         
|Trademarks                              |  |                       | 31.5 |                         
|                                        |  |                       |      |                         
|Total non-amortizable other intangibles |  |                       | 31.5 |                         
|                                        |  |                       |      |                         
|Total other intangibles                 |  | $                     | 94.7 |                         
|                                        |  |                       |      |                         



Amortization expense for the three months ended March 31, 2003 and 2002 was $0.6 and $1.0, respectively. Estimated amortization expense for the years ended December 31, 2003, 2004, 2005, 2006 and 2007 is $2.4, $2.0, $2.0, $2.0 and
$2.0, respectively.



8.    Debt



In January 2003, the Company extended the
maturity date of its existing 364-day credit facility to June 21, 2003 and reduced the maximum amount of the facility from $87.5 to $65.0. In addition, a representation requirement related to ERISA plan funding was amended. In January 2003, the
Company also amended its existing Five-year Facility to amend the representation requirement related to ERISA plan funding.



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





As of
March 31, 2003, the Companys borrowings under its credit facilities are recorded as short-term borrowings as such facilities expire within the next twelve months. The Company intends to renew such agreements.



At March 31, 2003, the Company had $11.0 of outstanding
letters of credit and $6.4 of letters of guarantee. As of March 31, 2003, the Company has agreed to guarantee 50% or up to $8.5 of Planar Solutions (a joint venture) borrowings ($5.9 at March 31, 2003), which is provided by the Companys
joint venture partner and expires in May 2005, and payments on certain Planar Solutions equipment leases ($0.5 at March 31, 2003), which expire in May 2004. The Company would be required to perform under the above two guarantees in the case of
nonpayment by Planar Solutions.



In May 2003, the
Company terminated its interest rate swap agreements. As a result, the Company received cash proceeds of $7.1, which represented the market value of the contracts on the date of termination. The Company utilized the proceeds to pay down debt and
reduced the amount recorded in Other Assets for such derivative instruments to zero. There was no gain or loss on the transaction. In accordance with SFAS 133, the basis adjustment of $7.1 has been recorded as an increase to the carrying amount of
the senior notes and will be amortized as a reduction of interest expense over the remaining life of the senior notes (through March 2007) using the effective-interest yield method. Simultaneous with the termination of the interest rate swap
agreements, the Company entered into new interest rate swap agreements, under which it swapped its 7.94% fixed interest rate on $80.0 principal amount of unsecured senior notes for floating rate interest based upon six-month LIBOR plus 5.4539%. The
Company has designated these new swap agreements as fair value hedges similar to the original interest rate swap agreements.



9.    Derivative Instruments and Hedging



The Company accounts for derivatives in accordance with SFAS 133, as amended by SFAS No. 137 and SFAS No.
138.



Foreign Currency



The Company uses foreign currency forward contracts as a
means of hedging exposure to foreign currency risk. It is the Companys policy to hedge up to 80% of its anticipated purchase and sales commitments denominated or expected to be denominated in a foreign currency. Accordingly, the Company has
purchased forward contracts to hedge its exposure to the variability of future foreign currency cash flows through December 2003. During the three months ended March 31, 2003 and 2002, the majority of the Companys foreign currency forward
contracts qualified as effective cash flow hedges. The remainder of the foreign currency contracts did not meet the criteria of SFAS 133 to qualify for effective hedge accounting. The fair value of the foreign currency contracts is included in Other
Current Assets and Accrued Liabilities on the accompanying Condensed Consolidated Balance Sheets. During the three months ended March 31, 2003 and 2002, the Company recorded income of $0 and $0.1, respectively, in Other Comprehensive Income (Loss)
related to the change in the fair market value of the derivatives designated as effective cash flow hedges. During the three months ended March 31, 2003 and 2002, the Company recorded a net gain of $0 and $0.1, respectively, in Selling and
Administration expenses related to the change in fair value of derivatives which did not qualify for hedge accounting and the change in the time value of the forward contracts, which has been excluded from the assessment of hedge effectiveness.



Natural Gas



In order to manage the risks associated with the changes in
natural gas prices, the Company purchased futures contracts to hedge a portion of its projected natural gas purchase requirements. These contracts expired in April 2002. These contracts were recorded at fair value. These derivative contracts did not
meet the criteria of SFAS 133 to qualify for effective hedge accounting. During the three months ended March 31, 2002, the Company recorded a gain of $0.1 in Selling and Administration expenses related to these contracts.



Debt and Interest



In April 2002, the Company entered into interest rate swap
agreements under which the Company swapped the 7.94% fixed interest rate on $80.0 principal amount of unsecured senior notes for floating rate interest based on six-



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)



month LIBOR plus 3.045%. The counter parties to these agreements are major financial institutions. The
agreements expire in March 2007. The Company has designated the swap agreements as fair value hedges of the risk of changes in the value of fixed rate debt due to changes in interest rates for a portion of its fixed rate borrowings under SFAS 133.
Accordingly, the swap agreements have been recorded at their fair market value of $6.3 and are included in Other Assets on the accompanying Condensed Consolidated Balance Sheet, with a corresponding increase in the carrying amount of the related
debt. No gain or loss has been recorded as the contracts meet the criteria of SFAS 133 to qualify for hedge accounting treatment with no ineffectiveness. See subsequent event discussion in Note 8.



10.    Comprehensive Income (Loss)



Comprehensive income (loss) includes the change in the
cumulative translation adjustment, minimum pension liability and the change in the fair value of derivative financial instruments, which qualify for hedge accounting. Comprehensive income (loss) for the three months ended March 31, 2003 and 2002 was
as follows:



|                                              |  | Three Months Ended March 31, |    
|--------------------------------------------- |  | ---------------------------- | ---
|                                              |  | 2003                         |    
|Net income (loss)                             |  | $                            | 1.4
|Foreign currency translation adjustments      |  |                              | 2.7
|Net unrealized gain on derivative instruments |  |                              |   
|                                              |  |                              |    
|Total other comprehensive income (loss)       |  |                              | 2.7
|                                              |  |                              |    
|Comprehensive income (loss)                   |  | $                            | 4.1
|                                              |  |                              |    



The
Company does not provide for U.S. income taxes on foreign currency translation adjustments since it does not provide for such taxes on undistributed earnings of foreign subsidiaries.



11.    Accumulated Net Unrealized Gain (Loss) on Derivative Instruments



Changes in the accumulated net unrealized gain (loss) on
derivative instruments for the three months ended March 31, 2003 and 2002 are as follows:



|                                                                                      |  | Three Months Ended March 31,
|------------------------------------------------------------------------------------- |  | ----------------------------
|                                                                                      |  | 2003                        
|Beginning balance of accumulated net unrealized gain (loss) on derivative
instruments |  | $                           
|Net gain (loss) on cash flow hedges                                                   |  |                             
|Reclassification into earnings                                                        |  |                             
|                                                                                      |  |                             
|Ending balance of accumulated net unrealized gain on derivative
instruments           |  | $                           
|                                                                                      |  |                             



The
unrealized gains on derivative instruments included in Accumulated Other Comprehensive Loss are expected to be reclassified into earnings within the next 12 months.



12.    Segment Reporting



The Company has organized its segments around differences in products and services, which is how the Company
manages its business. The four segments are microelectronic materials, treatment products, performance products and other specialty products. Treatment products includes three reportable business units: the HTH water products business, the personal
care and industrial biocides business and the wood protection and industrial coatings business. Performance products includes the performance urethanes business. Other specialty products includes the hydrazine and sulfuric acid businesses.



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





|                                                    |  | Three Months Ended March 31, |      
|--------------------------------------------------- |  | ---------------------------- | -----
|                                                    |  | 2003                         |      
|Sales:                                              |  |                              |      
|Microelectronic Materials                           |  | $                            | 34.9 
|Treatment Products:                                 |  |                              |      
|HTH Water Products                                  |  |                              | 52.6 
|Personal Care & Industrial Biocides                 |  |                              | 38.3 
|Wood Protection & Industrial Coatings               |  |                              | 59.9 
|                                                    |  |                              |      
|Total Treatment Products                            |  |                              | 150.8
|Performance Products                                |  |                              | 30.2 
|Other Specialty Products                            |  |                              | 16.6 
|                                                    |  |                              |      
|Total Sales                                         |  | $                            | 232.5
|                                                    |  |                              |      
|                                                   
|Operating Income (Loss):                            |  |                              |      
|Microelectronic Materials                           |  | $                            | (0.5 
|Treatment Products:                                 |  |                              |      
|HTH Water Products                                  |  |                              | 3.4  
|Personal Care & Industrial Biocides                 |  |                              | 7.8  
|Wood Protection & Industrial Coatings               |  |                              | 2.2  
|                                                    |  |                              |      
|Total Treatment Products                            |  |                              | 13.4 
|Performance Products                                |  |                              | (2.4 
|Other Specialty Products                            |  |                              | 0.6  
|Corporate Unallocated                               |  |                              | (3.2 
|                                                    |  |                              |      
|Total Segment Operating Income before Restructuring |  | $                            | 7.9  
|Restructuring                                       |  |                              | 0.8  
|                                                    |  |                              |      
|Total Operating Income (Loss)                       |  | $                            | 8.7  
|                                                    |  |                              |      
|                                                   
|Capital Spending:                                   |  |                              |      
|Microelectronic Materials                           |  | $                            | 0.4  
|Treatment Products:                                 |  |                              |      
|HTH Water Products                                  |  |                              | 0.7  
|Personal Care & Industrial Biocides                 |  |                              | 0.6  
|Wood Protection & Industrial Coatings               |  |                              | 0.3  
|                                                    |  |                              |      
|Total Treatment Products                            |  |                              | 1.6  
|Performance Products                                |  |                              | 0.9  
|Other Specialty Products                            |  |                              | 1.0  
|                                                    |  |                              |      
|Total Capital Spending                              |  | $                            | 3.9  
|                                                    |  |                              |      



Segment
operating income (loss) includes the equity in earnings (losses) of affiliated companies and an allocation of corporate charges based on various allocation bases. Segment operating income (loss) excludes interest income, interest expense,
restructuring, and certain unallocated expenses of the corporate headquarters. The Company believes the exclusion of restructuring from segment operating income provides additional perspective on the Companys underlying business trends and
provides useful information to investors by excluding amounts from the Companys results that the Company believes are not indicative of ongoing operating results.



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





13.    Restructuring



In the first quarter of 2003, the Company recorded a charge of $1.1, for additional headcount reductions associated with a revision to the 2002 organizational restructuring program, offset by a reduction in the prior years
restructuring reserves of $1.9 for revisions to previous plans estimates in the first quarter of 2003. The additional headcount reductions were three employees in the treatment and HTH water products businesses, as well as three employees at
corporate.



In the first quarter of 2002, the
Company recorded a restructuring charge of $7.6, which included $6.6 related to headcount reductions of approximately 200 employees in the microelectronic materials, performance urethanes and HTH water products businesses, as well as a charge
related to the consolidation of several treatment products segment operations. The non-cash portion of the restructuring charge was approximately $1.0.



The following table summarizes activity related to the 2002, 2001 and 2000 restructuring plans:



|                                 |  | Severance Costs |       |   | Asset Write-downs |   |       | Other Items |  |   | Total |  
|-------------------------------- |  | --------------- | ----- | - | ----------------- | - | ----- | ----------- |  | - | ----- | -
|Provision                        |  | $               | 18.0  |   |                   | $ | 11.0  |             |  | $ | 5.0   |  
|2000 Activity:                   |  |                 |       |   |                   |   |       |             |  |   |       |  
|Payments                         |  |                 | (1.4  | ) |                   |   |      |             |  |   |      |  
|Utilized                         |  |                 |      |   |                   |   | (11.0 | )           |  |   |      |  
|                                 |  |                 |       |   |                   |   |       |             |  |   |       |  
|Balance at December 31, 2000     |  |                 | 16.6  |   |                   |   |      |             |  |   | 5.0   |  
|2001 Activity:                   |  |                 |       |   |                   |   |       |             |  |   |       |  
|Provision                        |  |                 | 2.4   |   |                   |   |      |             |  |   |      |  
|Payments                         |  |                 | (11.0 | ) |                   |   |      |             |  |   | (1.6  | )
|Reclass postemployment liability |  |                 | (2.5  | ) |                   |   |      |             |  |   |      |  
|Reserve reduction                |  |                 | (0.3  | ) |                   |   |      |             |  |   | (1.2  | )
|                                 |  |                 |       |   |                   |   |       |             |  |   |       |  
|Balance at December 31, 2001     |  |                 | 5.2   |   |                   |   |      |             |  |   | 2.2   |  
|2002 Activity:                   |  |                 |       |   |                   |   |       |             |  |   |       |  
|Provision                        |  |                 | 6.6   |   |                   |   |      |             |  |   | 1.0   |  
|Payments                         |  |                 | (6.1  | ) |                   |   |      |             |  |   | (0.5  | )
|Reclass postemployment liability |  |                 | (0.5  | ) |                   |   |      |             |  |   |      |  
|Utilized                         |  |                 |      |   |                   |   |      |             |  |   | (0.4  | )
|                                 |  |                 |       |   |                   |   |       |             |  |   |       |  
|Balance at December 31, 2002     |  |                 | 5.2   |   |                   |   |      |             |  |   | 2.3   |  
|Provision                        |  |                 | 1.1   |   |                   |   |      |             |  |   |      |  
|Payments                         |  |                 | (1.7  | ) |                   |   |      |             |  |   |      |  
|Utilized                         |  |                 |      |   |                   |   |      |             |  |   | (0.1  | )
|Reserve reduction                |  |                 | (1.1  | ) |                   |   |      |             |  |   | (0.8  | )
|                                 |  |                 |       |   |                   |   |       |             |  |   |       |  
|Balance at March 31, 2003        |  | $               | 3.5   |   |                   | $ |      |             |  | $ | 1.4   |  
|                                 |  |                 |       |   |                   |   |       |             |  |   |       |  



As of
March 31, 2003, $36.8 had been charged against restructuring reserves. As of March 31, 2003, substantially all employees from the 2002 restructuring program and all employees from the 2001 and 2000 restructuring programs had been terminated. At
March 31, 2003, $4.9 of restructuring reserves was included in Accrued Liabilities in the accompanying Condensed Consolidated Balance Sheet.



14.    Significant Contract



In April 2002, pursuant to the Companys Chlor-Alkali Supply Agreement with Olin Corporation (Olin), the Company notified
Olin of its intention to terminate its agreement effective December 31, 2003.



15.    Commitments and Contingencies



In connection with the acquisition of Hickson, the Company assumed certain legal obligations, including a trial court judgment of approximately $8.5 plus interest in a lawsuit associated with a wood
preservative spillage in 1994. In 2002, a new trial resulted in a judgment of $2.6 plus interest. This judgment is subject to various post trial



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)



motions. The judgment and related interest is included in Accrued Liabilities in the accompanying Condensed Consolidated Balance Sheets.



The Company does not expect any final resolution
of the above case to have a material adverse effect on the results of operations or the financial position of the Company.



The Company settled a product claim by a customer related to a discontinued product in August 2002 for $3.0, net of insurance claims of
approximately $2.5. The full settlement of $5.5 was paid by the Company during the third quarter of 2002. Actual insurance proceeds of $1.6 were received by March 31, 2003 in full settlement of the insurance claims.



Five putative class action lawsuits were filed in various
state and federal courts against several chromated copper arsenate (CCA) manufacturers, including the Companys CCA-formulating subsidiary Arch Wood Protection, Inc., the Company, several CCA customers and various retailers
regarding the marketing and use of CCA-treated wood. Three of these cases have been dismissed without prejudice. In the fourth case, the federal district court has ruled that the requirements for a class action have not been met and has denied class
action status in this case. Subsequently, the court granted plaintiffs motion for voluntary dismissal of their claims against the Company, its subsidiaries and several other defendants. In the fifth case (Ardoin v. Stine Lumber Company et.
al.), the court has not yet reached the issue of whether the case should or should not be certified as a class action.



The proposed class members in the Ardoin case purport to include various persons who purchased CCA-treated wood products for
residential use. The lawsuit seeks to recover the purchase price and other alleged unquantified damages under various theories, including breach of warranty. This case does not allege personal injury. This lawsuit is in the early stage of discovery.



In addition, there are five other CCA-related
lawsuits naming one or more of the Companys subsidiaries, and in one case, the Company, as a defendant. These additional five cases are not putative class actions. They are actions by individual claimants alleging various personal injuries
allegedly due to exposure to CCA-treated wood.



The Company and its subsidiaries deny the material allegations of all the various CCA-related claims and have vigorously defended and will continue to vigorously defend them. As a result, legal defense and related costs associated
with these cases were significant in the first quarter of 2003 and may increase in the future.



All CCA-related cases are subject to a number of uncertainties, including in the case of the remaining putative class action, whether and to what extent it will be certified as a class action. As a
result, their impact, if any, is difficult to assess. Based on the information currently available to the Company, however, the Company does not believe the resolution of these cases is likely to have a material adverse effect on its consolidated
financial condition, cash flow or results of operations.



Environmental exposures are difficult to assess for numerous reasons, which may include the identification of new sites, developments at sites resulting from investigatory studies, advances in technology, changes in environmental
laws and regulations and their application, the scarcity of reliable data pertaining to identified sites, the difficulty in assessing the involvement and financial capability of other potentially responsible parties and the Companys ability to
obtain contributions from other parties and the length of time over which site remediation occurs.



In 1999, Olin and the Company entered into an agreement, which specifies that the Company is only responsible for environmental
liabilities at the Companys current operating plant sites and certain offsite locations. Olin retained the liability for all former plant sites and former waste disposal sites. In connection with the acquisition of Hickson, the Company
acquired certain environmental exposures and potential liabilities of current and past operating sites all of which have been accrued for in the accompanying Condensed Consolidated Financial Statements.



There are a variety of non-environmental legal proceedings
pending or threatened against the Company. There has been no significant change in status of such items, other than those described above, during the three months ended March 31, 2003.



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ARCH CHEMICALS, INC.



Notes to Condensed Consolidated Financial Statements

(Unaudited)

($ in millions, except share amounts)





See the
Companys Form 10-K for the year ended December 31, 2002 for additional information.



16.    New Accounting Standards



In June 2001, the FASB issued SFAS No. 143, Accounting for Asset Retirement Obligations. SFAS No. 143 requires that the fair value of a liability for an asset retirement be recognized in
the period in which it is incurred if a reasonable estimate of fair value can be made. The associated asset retirement costs are capitalized as part of the carrying amount of the long-lived asset. This statement is effective for fiscal years
beginning after June 15, 2002. Effective January 1, 2003, the Company adopted SFAS No. 143, which addresses financial accounting requirements for retirement obligations associated with tangible long-lived assets. On January 1, 2003 the Company
recorded an asset, liability and a one-time cumulative effect charge, net of tax benefit, of $0.4, $0.6 and $0.4, respectively, to reflect the cost of retirement obligations related to facilities, certain equipment used in the manufacturing process,
underground tanks and a landfill. The after-tax charge was recorded as the cumulative effect of an accounting change. Certain other asset retirement obligations associated with owned or leased buildings and manufacturing facilities have not been
recorded because these retirement obligations have an indeterminate settlement date, and accordingly, the retirement obligation cannot be reasonably estimated. The ongoing annual incremental expense resulting from the adoption of SFAS No. 143 is not
expected to be significant. At March 31, 2003, the change in the fair value of the liability for asset retirements compared to the original value of the liability recorded at the date of adoption of SFAS No. 143 was not significant. At January 1,
2002, the pro forma amount of the Companys asset retirement obligations, using the assumptions as of the date of the adoption of SFAS No. 143 would be $0.6. Pro forma effects for the three months ended March 31, 2002, assuming adoption of SFAS
143 as of January 1, 2002, were not material to net earnings or per-share amounts.



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##### Table of Contents

Item 2.    Managements Discussion and Analysis of Financial Condition and Results of Operations



Overview



In analyzing the results of operations for the Company and its segments, the following matters should be considered. The Companys
Treatment segment is seasonal in nature, in particular the HTH water products business. Historically, approximately 40%-50% of the sales in the HTH water products business occur in the second quarter of the fiscal year, as retail sales in the U.S.
residential pool market are concentrated between Memorial Day and the Fourth of July. Accordingly, results of operations for the periods presented are not necessarily indicative of the results to be expected for an entire fiscal year. Segment
operating income includes the equity in earnings of affiliated companies and excludes restructuring and certain unallocated expenses of the corporate headquarters.



The term Company as used in Items 1 and 2 of this Report means Arch Chemicals, Inc. and its
subsidiaries unless the context indicates otherwise.



Results of Operations



Consolidated



|                                                   |  | Three Months Ended March 31,            |      
|-------------------------------------------------- |  | --------------------------------------- | -----
|                                                   |  | 2003                                    |      
|                                                   |  | (In millions, except per share amounts) |      
|Sales                                              |  | $                                       | 232.5
|                                                   |  |                                         |      
|Gross Margin                                       |  | $                                       | 65.0 
|Selling and Administration                         |  |                                         | 52.7 
|Amortization of Intangibles                        |  |                                         | 0.6  
|Research and Development                           |  |                                         | 5.7  
|Equity in (Earnings) of Affiliated Companies       |  |                                         | (1.9 
|Restructuring                                      |  |                                         | (0.8 
|Interest Expense, net                              |  |                                         | 4.1  
|Income Tax Expense (Benefit)                       |  |                                         | 1.7  
|Loss from Discontinued Operations, net of tax      |  |                                         | (1.1 
|Loss on Sale of DanChem, net of tax                |  |                                         |     
|Cumulative Effect of Accounting Change, net of tax |  |                                         | (0.4 
|                                                   |  |                                         |      
|Net Income (Loss)                                  |  | $                                       | 1.4  
|                                                   |  |                                         |      
|Diluted Income (Loss) Per Common Share             |  | $                                       | 0.06 
|                                                   |  |                                         |      



Net income (loss) from
continuing operations before cumulative effect of accounting change was $2.9 million and $(3.6) million for the three months ended March 31, 2003 and 2002, respectively, which included $0.5 million and $(4.7) million of restructuring income
(expense), net of tax, respectively. For the three months ended March 31, 2003 and 2002, net income (loss) per share from continuing operations before cumulative effect of accounting change was $0.13 and $(0.16), respectively, which included $0.02
and $(0.21) per share from restructuring income (expense), net of tax, respectively.



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



Three Months
Ended March 31, 2003 Compared to 2002



Sales increased $21.4 million, or 10%, due to an increase in overall volumes (approximately 5%) and favorable foreign exchange (approximately 5%), partially offset by lower overall prices. In particular, sales were higher in the
industrial biocides business as a result of continued strong demand for biocides used in marine antifouling paint. Sales also increased due to higher volumes in the Microelectronic Materials segment, partially offset by a decrease in volumes in the
Performance Products segment.



Gross margin
percentage was 28.0% and 27.6% for 2003 and 2002, respectively. The increase in margin percentage was primarily a result of higher volumes in the Wood Protection and the Microelectronic Materials segment, partially offset by ongoing price
concessions in the Microelectronic Materials segment and lower sales volumes in the performance urethanes business due to continued economic issues and political instability in Venezuela.



Selling and administration expenses as a percentage of sales increased to 22.7% in 2003 from 22.3% in 2002
and these expenses increased in amount by $5.6 million. The increase in amount was primarily due to higher CCA-related and other legal costs in the Treatment Products segment, and higher insurance and employee benefit-related expenses. Selling and
advertising costs were higher to support the HTH®PoolifeTMbrand and other consumer brand initiatives. These factors were partially offset by lower selling and administration expenses in the performance urethanes
business due to cost reduction initiatives.



Amortization of intangibles decreased $0.4 million from the prior year, primarily due to intangibles that became fully amortized in 2002.



Research and development expenses were comparable to 2002 primarily due to cost reduction initiatives in the Microelectronic Materials
segment, which were offset by increased spending in the industrial coatings business.



Equity in earnings of affiliated companies increased $1.3 million due to favorable operating results of the FUJIFILM Arch joint venture due to higher sales related to stronger Asian demand, of the
Planar Solutions joint venture due to higher sales of copper-based slurries and of the Nordesclor joint venture due to higher sales that resulted from a temporary gain in market share.



Restructuring in 2003 includes severance costs of $1.1 million for additional headcount reductions associated
with a revision to the 2002 organizational restructuring program, offset by a reduction of the prior years restructuring reserves of $1.9 million for revisions to previous plans estimates in the first quarter of 2003. Restructuring in
2002 includes employee-related costs for headcount reductions in the microelectronic materials, treatment products and performance products segments and expenses related to the consolidation of several treatment products operations.



Interest expense, net increased $0.9 million due to higher
effective interest rates resulting from the issuance in March 2002 of unsecured senior notes, which were outstanding for a full quarter in 2003, partly offset by lower debt levels.



The tax rate on net income (loss) from continuing operations for the three months ended March 31, 2003 and
2002 was 37% and 39%, respectively. The impact of restructuring was to increase the effective tax rate on net income (loss) from continuing operations by 1% and 3% for the first quarter of 2003 and 2002, respectively.



Loss from discontinued operations, net of tax, in 2003 and
2002 reflects the results of operations and interest expense allocated to the Hickson organics Castleford business. The 2002 results of operations include a $0.6 million restructuring charge for headcount reductions and a $1.4 million charge for
estimated losses to be incurred through the third quarter of 2002.



Second Quarter and Full Year Outlook



16



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



The Company
anticipates earnings per share from continuing operations in the second quarter 2003 to be in the $0.65 to $0.70 range, compared to $0.59 in the prior-year quarter. Consistent with earlier guidance, for the full-year 2003, earnings from continuing
operations are expected to range from $0.65 to $0.90 per share, depreciation and amortization is estimated to be approximately $58 million and capital spending is expected to be $35 to $40 million. See Cautionary Statement under Federal
Securities Laws below.



Segment
Information



The Company has organized
its business portfolio into four operating segments to reflect the Companys business strategy. The four segments are microelectronic materials, treatment products, performance products and other specialty products. The treatment products
segment includes three reportable business units: the HTH water products business, the personal care and industrial biocides business and the wood protection and industrial coatings business. Performance products includes the performance urethanes
business. Other specialty products include the hydrazine and sulfuric acid businesses. The following compares segment sales and operating income for the first quarters of 2003 and 2002 (including equity in earnings of affiliated companies and
excluding restructuring and certain unallocated expenses of the corporate headquarters):



Microelectronic Materials



|                      |  | Three Months Ended March 31, |     
|--------------------- |  | ---------------------------- | ----
|                      |  | 2003                         |     
|                      |  | ($ in millions)              |     
|Results of Operations |  |                              |     
|Sales                 |  | $                            | 34.9
|Operating Loss        |  |                              | (0.5





Three Months Ended March 31, 2003 Compared to 2002



Sales increased $2.7 million or approximately 8%, as the segment continued to benefit from the sales growth
of new products, capitalized on a modest recovery in the semiconductor industry over the prior period and benefited from foreign exchange (approximately 2%). Sales increased due to higher volumes of polyimides, ancillaries and thin film due to
strong demand, partially offset by pricing pressure in ancillary products. Operating results improved significantly as a result of the higher sales and lower manufacturing costs resulting from cost-reduction initiatives and improved operating
results of its joint ventures. Operating results of FUJIFILM Arch and Planar Solutions joint ventures increased due to significantly higher sales as a result of new products introduced respectively in Asia for flat panel display applications and in
North America for CMP copper slurries used in advanced manufacturing processes.



Treatment Products



|                                      |  | Three Months Ended March 31,
|------------------------------------- |  | ----------------------------
|                                      |  | 2003                        
|                                      |  | ($ in millions)             
|Results of Operations:                |  |                             
|Sales                                 |  |                             
|HTH Water Products                    |  | $                           
|Personal Care & Industrial Biocides   |  |                             
|Wood Protection & Industrial Coatings |  |                             
|                                      |  |                             
|Total Treatment Products              |  | $                           
|                                      |  |                             
|Operating
Income                      |  |                             
|HTH Water Products                    |  | $                           
|Personal Care & Industrial Biocides   |  |                             



17



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



|Wood Protection & Industrial Coatings |  |   | 2.2  |  |   | 2.3 
|------------------------------------- |  | - | ---- |  | - | ----
|                                      |  |   |      |  |   |     
|Total Treatment Products              |  | $ | 13.4 |  | $ | 13.3
|                                      |  |   |      |  |   |     



Three Months Ended March 31, 2003 Compared to 2002



Sales increased approximately 15% and operating income was comparable to prior year. The increase in sales is due to higher volumes (approximately 9%) and favorable foreign exchange (approximately 7%),
partially offset by lower prices (approximately 1%).



HTH Water Products



Sales increased $4.1 million or approximately 8% and operating income decreased $1.3 million. The increase in sales was principally due to favorable foreign currency rates, stronger international volumes and higher non-branded
calcium hypochlorite volumes. The lower operating results were primarily due to the unfavorable product mix, the unfavorable impact of lower production compared to prior year and higher selling and administration costs to support the HTH®PoolifeTMbrand and other consumer brand initiatives.



Personal Care and Industrial Biocides



Sales increased $8.9 million, or approximately 30% higher than 2002, due to continued strong demand for biocides used in marine antifouling paint and higher antidandruff and personal care volumes.
Antifouling paint sales more than doubled as a result of increased demand due to the proposed ban on tributyl tin in marine paint. Operating income increased approximately $1.5 million or approximately 24% due to the higher sales partially offset by
higher legal expenses in the personal care product line relating to litigation where the Company is asserting claims against a former owner and several former employees of an acquired business.



Wood Protection & Industrial Coatings



Sales were approximately 14% higher
than the prior year due to favorable foreign currency translation (approximately 14%). Excluding the favorable impact of foreign currency, sales and operating income were comparable as higher volumes of Wolman®E and Tanalith®E (CCA-alternative products) and higher industrial coatings volumes were offset by lower volumes of traditional CCA products. Higher ongoing legal defense expenses associated with CCA product related lawsuits were partially offset
by the benefit of a favorable CCA liability settlement.



Performance Products



|                      |  | Three Months Ended March 31, |     
|--------------------- |  | ---------------------------- | ----
|                      |  | 2003                         |     
|                      |  | ($ in millions)              |     
|Results of Operations |  |                              |     
|Sales                 |  | $                            | 30.2
|Operating Loss        |  |                              | (2.4



Three Months Ended March 31, 2003 Compared to 2002



Sales decreased $1.3 million principally due to reduced Latin American sales, a result of poor economic conditions and continued political instability in Venezuela, partially offset by higher polyol
volumes. Operating results decreased due to the lower sales and higher raw material and energy costs, partially offset by lower selling and administration expenses due to cost saving initiatives implemented in 2002.



18



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



Other Specialty Products



|                      |  | Three Months Ended March 31,
|--------------------- |  | ----------------------------
|                      |  | 2003                        
|                      |  | ($ in millions)             
|Results of Operations |  |                             
|Sales                 |  | $                           
|Operating Income      |  |                             



Three Months Ended March 31, 2003 Compared to 2002



Sales were comparable to prior year and operating income decreased $0.8 million.



Hydrazine sales decreased by approximately 6% due to lower hydrate volumes from lower demand, partly offset by higher hydrate pricing and
commercial propellants volumes. Operating income was lower than prior year primarily due to the lower sales and higher manufacturing costs.



Sulfuric acid sales increased approximately four percent as a result of higher volumes, partly offset by lower pricing. Operating income
was higher than the prior year due to the higher sales and lower operating costs, including the benefit of a sales tax refund.



Liquidity, Investment Activity and Other Financial Data



|                                                    |  | Three Months Ended March 31, |      
|--------------------------------------------------- |  | ---------------------------- | -----
|Cash Flow Data                                      |  | 2003                         |      
|                                                    |  | ($ in millions)              |      
|Provided By (Used For)                              |  |                              |      
|Sale of Accounts Receivable                         |  | $                            | 12.7 
|Net Operating Activities from Continuing Operations |  |                              | (34.4
|Change in Net Assets Held for Sale                  |  |                              | (2.1 
|Capital Expenditures                                |  |                              | (3.9 
|Proceeds from Sale of Business                      |  |                              |     
|Net Investing Activities                            |  |                              | (4.2 
|Debt Borrowings (Repayments)                        |  |                              | 41.8 
|Net Financing Activities                            |  |                              | 37.7 



Three Months Ended March 31, 2003 Compared to 2002



For the three months ended March 31, 2003 and 2002, $34.4 million was used in operating activities from continuing operations compared to $26.1 million provided by operating activities from continuing
operations, respectively, which was primarily attributable to an increase in working capital in 2003 compared to a slight decrease in working capital in 2002. The increase in 2003 working capital is primarily the result of an increase in accounts
receivable and a decrease in accrued liabilities. The timing of collections for the microelectronic materials segment and the result of a stronger first quarter for the HTH water products business were the primary drivers of the increase in accounts
receivable. The decrease in accrued liabilities is primarily due to a decrease in accrued interest and compensation expense. In addition, the incremental proceeds from the sale of accounts receivable were lower in 2003 as compared to 2002, as 2002
was the first quarter for the program.



Cash used
by assets held for sale was $2.1 million in 2003 compared to $4.0 million in 2002 primarily due to improved working capital in the Hickson organics Castleford business.



19



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



Capital
expenditures for the first three months of 2003 were $5.0 million lower than 2002 due to overall lower expenditures in the other specialty products segment and the HTH water products, biocides and industrial coatings businesses. Capital expenditures
for 2003 are expected to be $35 to $40 million.



In March 2002, the Company completed the sale of its DanChem operations in Danville, Virginia for approximately $25 million. Proceeds from the sale of these assets were used to pay down debt.



On March 12, 2003, the Company paid a quarterly dividend of
$0.20 on each share of common stock. Total dividends paid to shareholders were $4.5 million during the first three months of 2003.



On October 28, 1999, the Companys Board of Directors approved a stock repurchase program whereby the Company is authorized to buy
back up to 1.2 million shares of its common stock, representing approximately 5% of outstanding shares. Through March 31, 2003, the Company had repurchased approximately 893,000 shares under this program at a cost of approximately $16 million. The
program was suspended in 2000 pending the completion of the Hickson acquisition, including the subsequent sale of the organics business.



At March 31, 2003, the Company had two credit facility agreements. These included an unsecured $125 million revolving five-year credit
facility (Five-year Facility), which expires in January 2004, and an unsecured $87.5 million 364-day facility (364-day Facility), which had expired in January 2003 and was subsequently renewed (see below). The Companys
$225 million revolving credit facility (Acquisition Facility), which the Company used to finance the Hickson acquisition and refinance a portion of the assumed Hickson debt (collectively the Credit Facilities), expired in
March 2002. As of March 31, 2003, facility fees are payable on the Credit Facilities and range from 0.15% to 0.5%. The Company may select various floating rate borrowing options, including, but not limited to, LIBOR plus 0.425% to 1.55%. At March
31, 2003, the Company had approximately $151 million of available borrowings under the Credit Facilities.



In April 2002, the Company entered into interest rate swap agreements under which the Company swapped the 7.94% fixed interest rate on
$80.0 million principal amount of its unsecured senior notes for floating rate interest based on six-month LIBOR plus 3.045%. The counter parties to these agreements are major financial institutions. The agreements expire in March 2007.



In May 2003, the Company terminated its interest
rate swap agreements. As a result, the Company received cash proceeds of $7.1, which represented the market value of the contracts on the date of termination. The Company utilized the proceeds to pay down debt and reduced the amount recorded in
Other Assets for such derivative instruments to zero. There was no gain or loss on the transaction. In accordance with SFAS 133, the basis adjustment of $7.1 has been recorded as an increase to the carrying amount of the senior notes and will be
amortized as a reduction of interest expense over the remaining life of the senior notes (through March 2007) using the effective-interest yield method. Simultaneous with the termination of the interest rate swap agreements, the Company entered into
new interest rate swap agreements, under which it swapped its 7.94% fixed interest rate on $80.0 principal amount of unsecured senior notes for floating rate interest based upon six-month LIBOR plus 5.4539%. The Company has designated these new swap
agreements as fair value hedges similar to the original interest rate swap agreements.



In January 2003, the Company extended the maturity date of its existing 364-day credit facility to June 21, 2003 and reduced the maximum amount of the facility from $87.5 million to $65.0 million. In
addition, a representation requirement related to ERISA plan funding was amended. In January 2003, the Company also amended its existing Five-year Facility to amend the representation requirement related to ERISA plan funding. As of March 31, 2003,
the Companys borrowings under its credit facilities are recorded as short-term borrowings as such facilities expire within the next twelve months. The Company intends to renew such agreements.



In March 2002, the Company completed arrangements to sell
certain accounts receivable through its wholly-owned subsidiary, Arch Chemicals Receivables Corp., a special-purpose corporation. Arch Chemicals Receivables Corp. entered into a trade accounts receivable securitization agreement with an independent
financial institution whereby it can sell, on an ongoing basis, participation interests in accounts receivable for a maximum purchase price of up to $80.0 million. As of March 31, 2003, the Company had sold $46.2 million of participation interests
in accounts receivable under this program.



20



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



In March 2002, the
Company issued $211.0 million of unsecured senior notes to certain institutional investors in two series. The Series A notes of $149.0 million are due in March 2007 and the Series B notes of $62.0 million are due in March 2009 and bear fixed
interest rates of 7.94% and 8.24%, respectively, subject to certain leverage ratio requirements. The notes contain quarterly leverage ratio covenants of 4.5 through December 31, 2002 and 3.5 thereafter and fixed coverage ratio covenants of 2.0
through December 31, 2002 and 2.25 thereafter, and restrict the payment of dividends and repurchases of stock in excess of $65 million plus 50% of cumulative net income under certain circumstances. In addition, the notes contain a debt to total
capitalization ratio requirement not to exceed 55%. Proceeds from the issuance of these notes have been used to pay down debt, including the Acquisition Facility.



At March 31, 2003, the Company had $11.0 million of outstanding letters of credit. In addition, the Company
had $6.4 million of letters of guarantee for its joint venture Planar Solutions borrowings and certain equipment leases. The Company has agreed to guarantee up to $8.5 million of Planar borrowings.



The Company believes that the Credit Facilities, accounts
receivable securitization program and cash provided by operations are adequate to satisfy its liquidity needs for the near future. However, if Company earnings were to fall significantly below current expectations, a risk exists that the Company
would not meet its quarterly leverage, interest coverage, fixed charge coverage or debt to total capitalization ratio covenants which could trigger a default condition under its debt agreements.



The Company is pursuing the sale of the Hickson organics
Castleford, England operation. Proceeds from the sale are expected to be used to repay debt.



On April 24, 2003, the Company declared a quarterly dividend of $0.20 on each share of the Companys common stock. The dividend is payable on June 5, 2003, to shareholders of record at the close
of business on May 6, 2003.



New Accounting Standards



In January 2003, the Financial Accounting
Standards Board issued Interpretation No. 46, Consolidation of Variable Interest Entities. The Interpretation may have an effect on existing practice because it requires existing variable interest entities to be consolidated if those
entities do not effectively disperse risks among the parties involved. The Interpretation is effective immediately for all variable interest entities created after January 31, 2003. All variable interest entities created before February 1, 2003
shall apply the provisions of this Interpretation no later than the beginning of the first interim or annual reporting period after June 15, 2003. The Company is in the process of evaluating the effect of this Interpretation on its financial
statements and disclosures.



In April 2003, the
FASB decided to require all companies to expense the value of employee stock options. Companies will be required to measure the cost according to the fair value of the options. The FASB also tentatively decided in principle to measure employee
equity-based awards at their date of grant. The FASB plans to issue an exposure draft later this year that could become effective in 2004. Until a new Statement is issued, the provisions of APB No. 25 and SFAS No. 123 will remain in effect. The
Company will evaluate the impact of any new Statement regarding employee equity-based awards as requirements are finalized and a new Statement is issued.



Cautionary Statement under Federal Securities Laws



Except for historical information contained herein, the information set forth in this communication contains
forward-looking statements that are based on managements beliefs, certain assumptions made by management and managements current expectations, estimates and projections about the markets and economy in which Arch and its various
businesses operate. Words such as anticipates, believes, estimates, expects, forecasts, opines, plans, predicts, projects,
should, targets, will, and variations of such words and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and involve certain
risks, uncertainties and assumptions (Future Factors), which are



21



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##### Table of Contents

Managements Discussion and Analysis of Financial Condition and Results of
OperationsContinued



difficult to predict. Therefore,
actual outcomes and results may differ materially from what is expected or forecasted in such forward-looking statements. The Company undertakes no obligation to update publicly any forward-looking statements, whether as a result of future events,
new information or otherwise. Future Factors which could cause actual results to differ materially from those discussed include but are not limited to: general economic and business and market conditions; lack of economic recovery in 2003 in the
U.S.; lack of moderate growth or recession in European economies; increases in interest rates; economic conditions in Asia; worsening economic and political conditions in Venezuela; strengthening of the U.S. dollar against the euro; customer
acceptance of new products; efficacy of new technology; changes in U.S. laws and regulations; increased competitive and/or customer pressure; the Companys ability to maintain chemical price increases; higher-than-expected raw material costs
for certain chemical product lines; increased foreign competition in the calcium hypochlorite markets; lack of continued recovery in the semiconductor industry; unfavorable court, arbitration or jury decisions; the supply/demand balance for the
Companys products, including the impact of excess industry capacity; failure to achieve targeted cost-reduction programs; unsuccessful entry into new markets for electronic chemicals; capital expenditures in excess of those scheduled;
environmental costs in excess of those projected; the occurrence of unexpected manufacturing interruptions/outages at customer or company plants; unfavorable weather conditions for swimming pool use; inability to expand sales in the professional
pool dealer market; gains or losses on derivative instruments; and the inability of the Company to sell the Hickson organics Castleford, England operation or to sell it at its desired price.



22



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##### Table of Contents

Item 3.    Quantitiative and Qualitiative Disclosures About Market Risk



Interest Rate Risk



At March 31, 2003, the Company was exposed to interest rate risk on approximately 50% of its outstanding borrowings including funding
under its accounts receivable securitization program which are subject to floating rates. Based on the Companys expected 2003 borrowing levels, an increase in interest rates of 100 basis points would decrease the Companys results of
operations and cash flows by approximately $1.0 million.



Foreign Currency Risk



At
March 31, 2003, the Company had forward contracts to sell foreign currencies with notional amounts of $21.8 million and forward contracts to buy foreign currencies with notional amounts of $9.0 million. The fair value of these forward contracts is
included in Other Current Assets and Accrued Liabilities, respectively.



Holding all other variables constant, if there were a 10 percent change in foreign currency exchange rates, the net effect on the Companys annual cash flows would be an increase (decrease) of between $1.0 million to
$2.0 million related to the unhedged portion, as any increase (decrease) in cash flows resulting from the Companys hedge forward contracts would be offset by an equal (decrease) increase in cash flows on the underlying transaction being
hedged. The application of SFAS 133 may cause increased volatility in the Companys results of operations for interim periods in the future, if the Company changes its policies, or if some of the derivative instruments do not meet the
requirements for hedge accounting.



Commodity Price Risk



The Company is exposed to commodity price
risk related to the price volatility of natural gas utilized at certain manufacturing sites. Depending on market conditions, the Company may purchase derivative commodity instruments to minimize the risk of price fluctuations. At March 31, 2003, the
Company had no forward contracts to purchase natural gas. At March 31, 2002, the Company had forward contracts to purchase natural gas with notional amounts of $0.6 million. These contracts expired in April 2002. In addition, the Company is exposed
to price risk related to the price volatility of certain other raw materials including the ongoing purchase of propylene and, after December 31, 2003, the purchase of chlorine and caustic. Holding other variables constant, a 10 percent adverse
change in the price of propylene and natural gas would decrease the Companys results of operations and cash flows by approximately $1 million each.



See the Companys Form 10-K for the year ended December 31, 2002 for additional information on the above items.



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##### Table of Contents

Item 4.    Controls and Procedures



As of a date (Evaluation Date) within 90 days prior to the date of this report, the Company conducted an evaluation, under the supervision and with the participation of the Companys
chief executive officer and chief financial officer, pursuant to Rule 13a-15 promulgated under the Securities Exchange Act of 1934, as amended (Exchange Act) of the effectiveness of the design and operation of the Companys
disclosure controls and procedures. Based on this evaluation, the Companys chief executive officer and chief financial officer concluded that as of the Evaluation Date such disclosure controls and procedures were reasonably designed to ensure
that information required to be disclosed by the Company in reports it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time period specified in the rules and forms of the Securities and Exchange
Commission. The Company also has investments in certain unconsolidated entities. As the Company does not control or manage these entities, its disclosure controls and procedures with respect to such entities are necessarily more limited than those
it maintains with respect to its consolidated subsidiaries.



Since the Evaluation Date, there have not been any significant changes in the internal controls of the Company, or in other factors that could significantly affect these controls.



24



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##### Table of Contents

PART II.    OTHER INFORMATION



Item 6.    EXHIBITS AND REPORTS ON FORM 8-K



| | (a) |  | Exhibits required by Item 601 of Regulation S-K.
| | --- |  | ------------------------------------------------



|3.   |  | Bylaws, effective April 24, 2003                                                                                             
|---- |  | -----------------------------------------------------------------------------------------------------------------------------
|     |  |                                                                                                                              
|99.1 |  | CEOs Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of The Sarbanes-Oxley
Act of 2002*
|     |  |                                                                                                                              
|99.2 |  | CFOs Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of The Sarbanes-Oxley
Act of 2002*



*In
accordance with SEC Release No. 33-8212, Exhibits 99.1 and 99.2 are being furnished to the Securities and Exchange Commission and such exhibits shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934,
as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.



| | (b) |  | No reports on Form 8-K were filed during the quarter ended March 31, 2003.
| | --- |  | --------------------------------------------------------------------------



25



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##### Table of Contents

SIGNATURES



Pursuant to the
requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.



|             |  | ARCH CHEMICALS, INC.
|------------ |  | --------------------
|             |  |                     
|             |  |                     
|             |  |                     
|May 14, 2003 |  | By:                 
|             |  |                     
|             |  |                     



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##### Table of Contents

CERTIFICATIONS



I, Michael E. Campbell,
Chief Executive Officer of the Company, certify that:



|1. |  | I have reviewed this quarterly report on Form 10-Q of Arch Chemicals, Inc.;
|-- |  | ---------------------------------------------------------------------------



|2. |  | Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statement were made, not misleading with respect to the period covered by this quarterly report;
|-- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|3. |  | Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;
|-- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4. |  | The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a14 and 15d14) for the registrant and we have:
|-- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | a. |  | Designed such disclosure controls and procedures to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made
known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. |  | Evaluated the effectiveness of the registrants disclosure controls and procedures as of a date within 90 days prior to the filing date of this quarterly report
(the Evaluation Date); and
| | -- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | c. |  | Presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures based on our evaluation as of the Evaluation
Date;
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------



|5. |  | The registrants other certifying officer and I have disclosed, based on our most recent evaluation, to the registrants auditors and the audit committee
of registrants board of directors (or persons performing the equivalent function):
|-- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | a. |  | All significant deficiencies in the design or operation of internal controls which could adversely affect the registrants ability to record, process, summarize
and report financial data and have identified for the registrants auditors any material weaknesses in internal controls; and
| | -- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. |  | Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal controls; and
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------



27



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##### Table of Contents



|6. |  | The registrants other certifying officer and I have indicated in this quarterly report whether or not there were significant changes in internal controls or in
other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses.
|-- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Date: May 14, 2003



/s/    MICHAEL E. CAMPBELLMichael E. CampbellChief Executive Officer




28



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##### Table of Contents



I, Louis S. Massimo, Chief
Financial Officer of the Company, certify that:



|1. |  | I have reviewed this quarterly report on Form 10-Q of Arch Chemicals, Inc.;
|-- |  | ---------------------------------------------------------------------------



|2. |  | Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statement were made, not misleading with respect to the period covered by this quarterly report;
|-- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|3. |  | Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;
|-- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4. |  | The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a14 and 15d14) for the registrant and we have:
|-- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | a. |  | Designed such disclosure controls and procedures to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made
known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. |  | Evaluated the effectiveness of the registrants disclosure controls and procedures as of a date within 90 days prior to the filing date of this quarterly report
(the Evaluation Date); and
| | -- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | c. |  | Presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures based on our evaluation as of the Evaluation
Date;
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------



|5. |  | The registrants other certifying officer and I have disclosed, based on our most recent evaluation, to the registrants auditors and the audit committee
of registrants board of directors (or persons performing the equivalent function):
|-- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | a. |  | All significant deficiencies in the design or operation of internal controls which could adversely affect the registrants ability to record, process, summarize
and report financial data and have identified for the registrants auditors any material weaknesses in internal controls; and
| | -- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. |  | Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal controls; and
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents



|6. |  | The registrants other certifying officer and I have indicated in this quarterly report whether or not there were significant changes in internal controls or in
other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses.
|-- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Date: May 14, 2003



/s/    LOUIS S. MASSIMOLouis S. MassimoChief Financial Officer




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##### Table of Contents

EXHIBIT INDEX



|Exhibit No. |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                             
|----------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|           
|3.          |  | Bylaws, effective as of April 24, 2003                                                                                                                                                                                                                                                                                                                                                                                                                  
|           
|99.1        |  | CEOs Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of The Sarbanes-Oxley
Act of 2002*                                                                                                                                                                                                                                                                                                                           
|           
|99.2        |  | CFOs Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of The Sarbanes-Oxley
Act of 2002*                                                                                                                                                                                                                                                                                                                           
|           
|            |  | *In accordance with SEC Release No. 33-8212, Exhibits 99.1 and 99.2 are being furnished to the Securities and Exchange
Commission and such exhibits shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as
amended, except as shall be expressly set forth by specific reference in such filing.



31