FORM OF FIRST AMENDMENT TO EXECUTIVE AGREEMENT
THIS FIRST AMENDMENT TO EXECUTIVE AGREEMENT , between Arch Chemicals, Inc., a Virginia corporation (“Arch
Chemicals”), and (the “Executive”), dated December 30, 2007.
WHEREAS, the Executive and Arch Chemicals have entered into an Executive Agreement dated , 200
(“Executive Agreement”), regarding employee compensation matters;
WHEREAS, the Executive Agreement expires on December 31, 2007, and unless the Compensation Committee (the
“Committee”) of the Board of Directors of Arch Chemicals, Inc. acts otherwise, it will be extended as provided in Paragraph 3 of
the Executive Agreement;
WHEREAS, the Committee is willing to permit the extension of the Executive Agreement as provided in Paragraph 3 of the
Executive Agreement if this Amendment is entered into prior to December 31, 2007 by the Executive;
WHEREAS, the Executive is agreeable to entering into this Amendment and agrees the Executive Agreement shall be
renewed for an additional year all in accordance with Paragraph 3 of the Executive Agreement.
NOW THEREFORE, in consideration of the premises and the other mutual covenants contained herein, the parties hereto
agree as follows:
SECTION 1. Amendments to the Agreement . Paragraph 4(b) of the Executive Agreement is hereby amended to read in its
entirety as follows:
(b) In the event of a Termination after a Change in Control has occurred, in addition to the Executive Severance paid
under paragraph 4(a) above, Arch Chemicals will pay a Change in Control severance premium to the Executive in an
amount equal to two times the Executive Severance. The Change in Control severance premium, if it becomes due, will be
made within 10 days of the Termination.
SECTION 2. Amended Agreement in Full Force and Effect as Amended . Except as specifically amended in Section 1
above, the Agreement shall remain in full force and effect. The parties hereto agree to be bound by the t