<PAGE>
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K/A
AMENDMENT NO. 1 TO FORM 10-K
FOR ANNUAL AND TRANSITION REPORTS PURSUANT TO
SECTIONS 13 OR 15(d) OF THE SECURITIES ACT OF 1934
(Mark One)
[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934
For the fiscal year ended December 31, 1998
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 of (I.R.S. Employer Identification No.)
incorporation or organization)
501 Merritt 7
Norwalk, CT 06856
(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including area code: (203) 229-2900
Securities registered pursuant to Section 12(b) of the Act:
Name of each exchange
Title of each class on which registered
--------------------- --------------------
Common Stock New York Stock Exchange
Series A Participating Cumulative New York Stock Exchange
Preferred Stock Purchase Rights
Securities registered pursuant to Section 12(g) of the Act: None
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EXPLANATORY NOTE REGARDING AMENDMENT NO. 1:
This Amendment No. 1 is being filed solely to file an amended Exhibit 27 -
Financial Data Schedule so as to add the multiplier tag to the Financial Data
Schedule previously filed as Exhibit 27 in the Form 10-K of Arch Chemicals, Inc.
for the year ended December 31, 1998. The list of exhibits contained in "Item
14(a)3 Exhibits" to such previously filed Form 10-K is also amended to replace
"27. Financial Data Schedule" with "27. Amended and Restated Financial Data
Schedule."
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) 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.
Date: June 3, 1999
By Louis S. Massimo
----------------
Louis S. Massimo
Vice President and
Chief Financial Officer
<TABLE> <S> <C>
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<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Financial Statements contained in the Form 10-K for the period ended December
31, 1998 and is qualified in its entirety by reference to such Financial
Statements. Figures are rounded to the nearest 100,000 (except EPS).
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1998
<PERIOD-START> JAN-01-1998
<PERIOD-END> DEC-31-1998
<CASH> 7,100
<SECURITIES> 0
<RECEIVABLES> 137,000
<ALLOWANCES> (6,700)
<INVENTORY> 139,300
<CURRENT-ASSETS> 313,700
<PP&E> 862,000
<DEPRECIATION> (530,400)
<TOTAL-ASSETS> 721,600
<CURRENT-LIABILITIES> 166,600
<BONDS> 7,000
0
0
<COMMON> 0
<OTHER-SE> 504,500
<TOTAL-LIABILITY-AND-EQUITY> 721,600
<SALES> 862,800
<TOTAL-REVENUES> 862,800
<CGS> 622,000
<TOTAL-COSTS> 622,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 1,400
<INTEREST-EXPENSE> 600
<INCOME-PRETAX> 60,800
<INCOME-TAX> 20,800
<INCOME-CONTINUING> 40,000
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 40,000
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>
