AWARD DESCRIPTION AND AGREEMENT FOR
PERFORMANCE RETENTION SHARE AWARDS
GRANTED UNDER THE
ARCH CHEMICALS, INC. 1999 LONG TERM INCENTIVE PLAN
The terms and conditions of the Performance Retention Shares (as defined below) are contained in the Award
Certificate evidencing the grant of such shares, this Award Agreement (as defined below) and in the Arch
Chemicals, Inc. 1999 Long Term Incentive Plan (the "Plan") and such resolutions, rules and policies previously or
hereinafter adopted by the Compensation Committee of the Board of Directors of Arch Chemicals, Inc. from
time to time.
As used herein:
"Award Agreement" means this Award Description and Agreement.
"Performance Retention Share" means a unit denominated as one phantom share of Arch Chemicals, Inc.
Common Stock, granted as a Performance Award pursuant to Section 6(c) of the Plan, that may be replaced by
or converted into a Restricted Stock Unit (as defined below).
"Measurement Date" means with respect to a Performance Cycle, the last day of the second calendar year of the
Performance Cycle and the last day of the third calendar year of such Performance Cycle.
"Participant" means a Salaried Employee granted an award of Performance Retention Shares under the Plan.
"Payment Schedule" means with respect to a Performance Retention Share, such Performance Retention Share's
schedule as set forth in Exhibit I hereto with respect to the Performance Cycle to govern determination of the
Payment Value of such Performance Retention Share.
"Payment Value" means with respect to a Performance Retention Share at any given time, the portion, if any, of
such Performance Retention Share which a Participant has earned at such time under the applicable Payment
Schedule during the Performance Cycle relating to that Performance Retention Share.
"Performance Cycle" means with respect to Performance Retention Shares, a period of three fiscal years
(beginning with the fi