ARCH CHEMICALS INC Contracts & Agreements

FIRST AMENDMENT TO CREDIT AGREEMENT (Filed With SEC on August 5, 2011)

ARCH CHEMICALS, INC. 1999 STOCK PLAN FOR NON-EMPLOYEE DIRECTORS (As Amended and Restated as of April 28, 2011) (Filed With SEC on August 5, 2011)

AGREEMENT AND PLAN OF MERGER Dated as of July 10, 2011 among LONZA GROUP LTD., LG ACQUISITION CORP. and ARCH CHEMICALS, INC. (Filed With SEC on July 11, 2011)

REVOLVING CREDIT AGREEMENT DATED AS OF May 13, 2011 AMONG ARCH CHEMICALS, INC., THE LENDERS PARTY HERETO, BANK OF AMERICA, N.A., as Administrative Agent, RBS CITIZENS, N.A., WELLS... (Filed With SEC on May 19, 2011)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE ACCELERATED RESTRICTEDSTOCK UNIT AWARD GRANTED UNDER THE ARCH CHEMICALS, INC. 2009 LONG TERM INCENTIVE PLAN GRANTED FEBRUARY 18,... (Filed With SEC on May 6, 2011)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE UNIT AWARD GRANTED UNDER THE ARCH CHEMICALS, INC. 2009 LONG TERM INCENTIVE PLAN GRANTED FEBRUARY 18, 2011 (Filed With SEC on May 6, 2011)

ARCH SENIOR EXECUTIVE PENSION PLAN Article I. The Plan (Filed With SEC on February 23, 2011)

ARCH SENIOR EXECUTIVE PENSION PLAN II Article I. The Plan (Filed With SEC on February 23, 2011)

EXECUTIVE AGREEMENT (Filed With SEC on February 23, 2011)

AWARD DESCRIPTION AND AGREEMENT FOR RESTRICTED STOCK UNIT AWARD FOR LUISFERNANDEZ-MORENO GRANTED UNDER THE ARCH CHEMICALS, INC. 2009 LONG TERM INCENTIVE PLAN GRANTED SEPTEMBER 7,... (Filed With SEC on February 23, 2011)

ARCH CHEMICALS, INC. $250,000,000 4.00% SERIES 2010-A SENIORNOTES DUE DECEMBER 31, 2017 MASTER NOTE PURCHASE AGREEMENT DATED AS OF SEPTEMBER 9, 2010 TABLE OF CONTENTS (Filed With SEC on January 7, 2011)

ARCH CHEMICALS, INC. $75,000,000 6.70% Series A Senior Notes due August 28, 2016 $150,000,000 Private Shelf Facility NOTE PURCHASE AND PRIVATE SHELF AGREEMENT DatedAugust 28, 2009... (Filed With SEC on January 7, 2011)

AMENDED AND RESTATED RECEIVABLES SALE AGREEMENT DATED AS OF OCTOBER 6, 2009 among ARCH CHEMICALS, INC., as an Originator, ARCH TREATMENT TECHNOLOGIES, INC. as an Originator, ARCH... (Filed With SEC on January 7, 2011)

AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT Dated as of October 6, 2009 Among ARCH CHEMICALS RECEIVABLES CORP., as Seller, ARCH CHEMICALS, INC., as initial Servicer,... (Filed With SEC on January 7, 2011)

RPA AMENDMENT NO. 3 (Filed With SEC on October 7, 2010)

ARCH CHEMICALS, INC. $250,000,000 4.00% SERIES 2010-A SENIOR NOTES DUE DECEMBER 31,2017 MASTER NOTE PURCHASE AGREEMENT DATED AS OF SEPTEMBER 9, 2010 TABLE OF CONTENTS (Filed With SEC on September 9, 2010)

ARCH SENIOR EXECUTIVE PENSION PLAN II Article I.The Plan (Filed With SEC on February 19, 2010)

ARCH SENIOR EXECUTIVE PENSION PLAN Article I. ThePlan (Filed With SEC on November 5, 2009)

ARCH SUPPLEMENTARY AND DEFERRAL BENEFIT PENSION PLAN Article I. The Plan (Filed With SEC on November 5, 2009)

ARCH CHEMICALS, INC. SENIOR MANAGEMENT INCENTIVE COMPENSATION PLAN (As amended and restated effective January 1, 2010 for awards granted after December 31, 2009) (Filed With SEC on November 5, 2009)

OMNIBUS ASSUMPTION AND ASSIGNMENT AGREEMENT (Filed With SEC on October 9, 2009)

AMENDED AND RESTATED RECEIVABLES SALE AGREEMENT DATED AS OF OCTOBER 6, 2009 among ARCH CHEMICALS, INC., (Filed With SEC on October 9, 2009)

AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT Dated as of October 6, 2009 Among ARCH CHEMICALS RECEIVABLES CORP., as Seller, (Filed With SEC on October 9, 2009)

ARCH CHEMICALS, INC. $75,000,000 6.70% Series A Senior Notes due August 28, 2016 $150,000,000 (Filed With SEC on September 3, 2009)

AMENDMENT NO. 3 TO RECEIVABLES SALE AGREEMENT (Filed With SEC on August 3, 2009)

AMENDMENT NO. 3 TO RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on August 3, 2009)

FORM OF CHANGE IN CONTROL AGREEMENT (Tier II Agreement) [date] (Filed With SEC on February 20, 2009)

ARCH CHEMICALS, INC. 1999 STOCK PLAN FOR NON-EMPLOYEE DIRECTORS (Filed With SEC on February 20, 2009)

AWARD DESCRIPTION AND AGREEMENT FOR (Filed With SEC on February 20, 2009)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE RETENTION SHARE AWARDS GRANTED UNDER THE ARCH CHEMICALS, INC. 1999 LONG TERM INCENTIVE PLAN (Filed With SEC on February 20, 2009)

PERFORMANCE SHARE AWARDS GRANTED UNDER THE ARCH CHEMICALS, INC. 1999 LONG TERM INCENTIVE PLAN GRANTED JANUARY 28, 2009 (Filed With SEC on February 20, 2009)

Arch Chemicals, Inc. Restricted Stock Unit Award Restricted Stock Unit Certificate (Filed With SEC on February 20, 2009)

SUPPLEMENTAL CONTRIBUTING EMPLOYEE OWNERSHIPPLAN AMENDED ANDRESTATED AS OF JANUARY 1, 2009 (Filed With SEC on February 20, 2009)

ARCH SUPPLEMENTARY AND DEFERRAL BENEFIT PENSION PLAN Originally Effective February 8, 1999 Amended and Restated on December 30, 2008 Effective as of January 1, 2005 Article I. The... (Filed With SEC on February 20, 2009)

ARCH SENIOR EXECUTIVE PENSION PLAN Originally Effective as of February 8, 1999 (Filed With SEC on February 20, 2009)

EMPLOYEE DEFERRAL PLAN AMENDED AND RESTATED AS OF JANUARY 1, 2009 (Filed With SEC on February 20, 2009)

=========================================================================================================================== (Filed With SEC on February 17, 2009)

FORM OF AMENDED AND RESTATED EXECUTIVE AGREEMENT (Filed With SEC on December 19, 2008)

AMENDMENT NO. 2 TO RECEIVABLES SALE AGREEMENT (Filed With SEC on November 10, 2008)

AMENDMENT NO. 2 TO RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on November 10, 2008)

ASSETPURCHASE AGREEMENT AMONG ARCHCHEMICALS, INC. ROCKWOODSPECIALTIES INC. AND ADVANTISTECHNOLOGIES, INC. Datedas of September 5, 2008 TABLEOF CONTENTS (Filed With SEC on September 11, 2008)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE RETENTION SHARE AWARDS (Filed With SEC on May 7, 2008)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE SHARE AWARDS (Filed With SEC on May 7, 2008)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE RETENTION SHARE AWARDS (Filed With SEC on May 7, 2008)

AWARD DESCRIPTION AND AGREEMENT FOR PERFORMANCE SHARE AWARDS (Filed With SEC on May 7, 2008)

ARCH CHEMICALS, INC. EMPLOYEE DEFERRAL PLAN As Amended and Restated January 30, 2003 Amended by Amendment dated as ofNovember 3, 2005* And Amended through April 25, 2008 (Filed With SEC on May 7, 2008)

FORM OF FIRST AMENDMENT TO EXECUTIVE AGREEMENT (Filed With SEC on February 22, 2008)

FORM OF FIRST AMENDMENT TO TIER II AGREEMENT (Filed With SEC on February 22, 2008)

DESCRIPTION AND AGREEMENT OF RESTRICTED STOCK UNIT AWARD (Filed With SEC on February 22, 2008)

ARCH CHEMICALS, INC. EMPLOYEE DEFERRAL PLAN As Amended and Restated January 30, 2003 And as amended through April 26,2007 (Filed With SEC on May 3, 2007)

ARCH CHEMICALS, INC. 1999 STOCK PLAN FOR NON-EMPLOYEE DIRECTORS (Filed With SEC on May 3, 2007)

Additional Details Regarding the 2004 Awards (Filed With SEC on March 3, 2006)

AMENDMENT TO THE SUPPLEMENTAL CONTRIBUTING EMPLOYEE OWNERSHIP PLAN (Filed With SEC on November 4, 2005)

AMENDMENT TO THE ARCH SUPPLEMENTARY AND DEFERRAL BENEFIT PENSION PLAN (Filed With SEC on November 4, 2005)

AMENDMENT TO THE ARCH SENIOR EXECUTIVE PENSION PLAN (Filed With SEC on November 4, 2005)

AMENDMENT TO THE ARCH CHEMICALS, INC. EMPLOYEE DEFERRAL PLAN (Filed With SEC on November 4, 2005)

RECEIVABLES SALE AGREEMENT DATED AS OF JUNE 27, 2005 among ARCH CHEMICALS, INC., as an Originator, ARCH CHEMICALS SPECIALTY PRODUCTS, INC., as an Originator, ARCH TREATMENT... (Filed With SEC on June 30, 2005)

RECEIVABLES PURCHASE AGREEMENT Dated as of June 27, 2005 Among ARCH CHEMICALS RECEIVABLES CORP., as Seller, ARCH CHEMICALS, INC., as initial Servicer, THREE PILLARS FUNDING LLC... (Filed With SEC on June 30, 2005)

1999 LONG TERM INCENTIVE PLAN (Filed With SEC on March 14, 2005)

SENIOR MANAGEMENT INCENTIVE COMPENSATION PLAN (Filed With SEC on March 14, 2005)

FORM OF AWARD DESCRIPTION AND AGREEMENT (Filed With SEC on March 14, 2005)

FIRST AMENDMENT (Filed With SEC on March 14, 2005)

OMNIBUS AMENDMENT NO. 1 TO RECEIVABLES SALE AGREEMENT AND RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on March 14, 2005)

OMNIBUS AMENDMENT NO. 2 TO RECEIVABLES SALE AGREEMENT AND RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on March 14, 2005)

FORM OF EXECUTIVE AGREEMENT (Filed With SEC on January 5, 2005)

FORM OF CHANGE IN CONTROL AGREEMENT (Tier II Agreement) , (Filed With SEC on January 5, 2005)

FORM OF AMENDMENT NO. 1 TO EXECUTIVE AGREEMENT (Filed With SEC on August 6, 2004)

RECEIVABLESPURCHASE AGREEMENT (Filed With SEC on May 7, 2004)

RECEIVABLESPURCHASE AGREEMENT (Arch Chemical Receivables Corp.) (Filed With SEC on May 7, 2004)

SIGNED by ) /s/ J.H. Markham ) JOHN MARKHAM ) Date: 1 May 2002 SIGNED by ) /s/ Hayes Anderson For and on behalf of ) HICKSON INTERNATIONAL LIMITED ) Date: 1 May 2002 SCHEDULE (Filed With SEC on August 14, 2002)

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ARCH CHEMICALS INC Contracts & Agreements