KOSAN BIOSCIENCES INC Uncategorized Contracts & Agreements

FIRST AMENDMENT (Filed With SEC on May 12, 2008)

Kosan Biosciences Incorporated 3832 Bay Center Place (Filed With SEC on May 12, 2008)

3832 Bay Center Place, Hayward, CA 94545. Tel: (510 ###-###-####. Fax: (510 ###-###-#### (Filed With SEC on March 17, 2008)

AMENDMENT TO RESEARCH (Filed With SEC on November 9, 2007)

7,000,000 KOSAN BIOSCIENCES INCORPORATED (Filed With SEC on February 9, 2007)

KOSAN BIOSCIENCES INCORPORATED STOCKOPTION GRANT NOTICE 2006 EQUITY INCENTIVEPLAN (Filed With SEC on June 1, 2006)

Kosan Biosciences Incorporated 3832 Bay Center Place (Filed With SEC on May 10, 2006)

5,000,000 Shares KOSAN BIOSCIENCES INCORPORATED (Filed With SEC on March 30, 2006)

4,500,000 Shares (Filed With SEC on August 11, 2005)

($.001 parvalue) PLACEMENT AGENT AGREEMENT (Filed With SEC on December 10, 2003)

KOSAN BIOSCIENCES, INC. AND ORTHO-MCNEILPHARMACEUTICAL CORPORATION AND (Filed With SEC on November 14, 2003)

SIGNATURES ONFOLLOWING PAGE (Filed With SEC on March 28, 2003)

CONSENT AND AMENDMENT (Filed With SEC on November 14, 2002)

TABLE OF CONTENTS (Filed With SEC on August 14, 2002)

Certificate of Designation (Filed With SEC on October 15, 2001)