Board of Directors

Ralph Alexander is Managing Director at Riverstone Holdings, LLC, an energy and power-focused private equity firm. Previously, he served in various senior management positions with affiliates and subsidiaries of BP Plc (formerly British Petroleum), most recently as Chief Executive Officer of Innovene, BP's olefins and derivatives subsidiary, from 2004 to December 2005, as Chief Executive Officer of BP's Gas, Power and Renewables and Solar segment from 2001 to 2004, and as a Group Vice President in BP's Exploration and Production segment and BP's Refinery and Marketing segment. Mr. Alexander has served on the board of directors of Stein Mart, Inc. since August 2007. Mr. Alexander previously served on the boards of directors Anglo-American Plc from April 2005 to October 2007 and of Foster Wheeler from May 2006 to February 2007. He is currently chairman of the board of Polytechnic University. Mr. Alexander holds a Bachelor of Science degree and a Master of Science degree in Nuclear Engineering from Brooklyn Polytech (now Polytechnic Institute of New York University), and a Master of Science degree in Management Science from Stanford University.

Member of the Audit Committee

Holdings: 27,186 shares     View Transactions
Date	Type	Shares Traded	Price Range
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
May 18, 2012	Buy	21,186	2.36
Jul 19, 2011	Acquisition (Non Open Market)	3,000	n/a

Other Directorships
Polytechnic Institute of NYU
AES Solar Energy
Kior, Inc
Stein Mart, Inc.

Mr. Boisseau is President, Supply-Marketing and a member of the Executive Committee of Total S.A., a French oil and gas company, since January 2012. Previously, Mr. Boisseau served as President of the Gas & Power division of Total from February 2007 to December 2011. He also previously served as a member of Total's Management Committee since January 2005. He served as President, Middle East of Total's Exploration & Production division between 2002 and February 2007 and, before that, as General Manager of Total Austral in Argentina from 1999 to 2002. From 1995 to 1999, he worked in several management positions within the Refining and Marketing division in the U.S. and France. At the beginning of his career, he served in various positions within French government ministries He graduated from the leading French engineering school Ecole Polytechnique and also has a DEA (master's degree) in particle physics from the Ecole Normale Supérieure.

Holdings: 13,617,212 shares     View Transactions
Date	Type	Shares Traded	Price Range
Dec 24, 2012	Acquisition (Non Open Market)	1,677,852	2.98
Dec 24, 2012	Acquisition (Non Open Market)	1,677,852	2.98
Feb 23, 2012	Buy	2,288,356	5.78
Feb 23, 2012	Buy	2,288,356	5.78
Dec 8, 2010	Statement of Ownership	0	n/a
Sep 30, 2010	Acquisition (Non Open Market)	9,651,004	n/a

Professor Nam-Hai Chua is Andrew W. Mellon Professor and Head of the Laboratory of Plant Molecular Biology at the Rockefeller University since 1981. He is a fellow of the Royal Society of the United Kingdom, a Foreign Academician of the China Academy of Sciences and of the Academia Sinica in Taiwan. Professor Chua was a Director of Delta and Pine Land (USA) from 1993 until it was sold to Monsanto in 2007. He was also a director of Arpida Ltd (Muenchenstein, Switzerlad) from 2004-2008 and served as chairman of its compensation committee from 2006-2008. He has been a director of Temasek Life Sciences Laboratory, Singapore, and chairman of its Strategic Research Program since 2003. Dr Chua received his Ph.D. from Harvard University.

Holdings: 3,000 shares     View Transactions
Date	Type	Shares Traded	Price Range
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a

Other Directorships
Temasek Life Sciences Institute - Project Director
Wilmar International - Chief Scientific Officer

John Doerr is a Partner at Kleiner Perkins Caufield & Byers, a venture capital firm, since 1980. Mr. Doerr currently serves on the board of directors of Google Inc., as well as on the boards of directors of several private companies. Previously, Mr. Doerr served on the boards of directors of Amazon.com, Inc., drugstore.com, Inc., Move, Inc. (formerly Homestore.com, Inc.), palmOne, Inc. and Sun Microsystems, Inc. Mr. Doerr holds a Bachelor of Science and a Master of Science in Electrical Engineering and Computer Science degrees from Rice University and a Master of Business Administration degree from Harvard University.

Chair of the Nominating and Governance Committee

Member of the Leadership Development and Compensation Committee

Holdings: 3,031,037 shares     View Transactions
Date	Type	Shares Traded	Price Range
Dec 24, 2012	Buy	1,677,852	2.98
Aug 31, 2012	Buy	270,270	3.70
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
May 18, 2012	Buy	211,864	2.36
Feb 23, 2012	Acquisition (Non Open Market)	865,051	5.78
Jul 19, 2011	Acquisition (Non Open Market)	3,000	n/a
Jun 2, 2011	Acquisition (Non Open Market)	8,503	n/a
Sep 30, 2010	Acquisition (Non Open Market)	3,594,605	n/a
Sep 30, 2010	Acquisition (Non Open Market)	66,297	n/a
Sep 30, 2010	Acquisition (Non Open Market)	3,660,902	n/a
Sep 30, 2010	Acquisition (Non Open Market)	3,800,587	n/a
Sep 27, 2010	Statement of Ownership	0	n/a
Sep 27, 2010	Statement of Ownership	0	n/a
Sep 27, 2010	Statement of Ownership	0	n/a
Sep 27, 2010	Statement of Ownership	0	n/a

Other Directorships
Bloom Energy
Google

Previous Directorships
Amazon.com
Intuit

Dr. Geoffrey Duyk was a member of the Board from May 2006 through May 2011, and re-joined the Board in May 2012. Dr. Duyk is a partner of TPG Growth, LLC, an affiliate of TPG Biotechnology Partners II, L.P. Previously, he served on the board of directors and was President of Research and Development at Exelixis, Inc., a biopharmaceutical company focusing on drug discovery, from 1996 to 2003. Prior to Exelixis, Dr. Duyk was Vice President of Genomics and one of the founding scientific staff at Millennium Pharmaceuticals, from 1993 to 1996. Before that, Dr. Duyk was an Assistant Professor at Harvard Medical School in the Department of Genetics and Assistant Investigator of the Howard Hughes Medical Institute. Dr. Duyk currently serves on the boards of directors of several private companies and the non-profit Wesleyan University Board of Trustees. He served on the board of directors of Agria Corporation from August 2007 to May 2009, Cardiovascular Systems, Inc. (formerly Replidyne, Inc.) from 2004 to February 2009, Exelixis, Inc. from 1996 to 2003. Dr. Duyk holds a Bachelor of Arts degree in Biology from Wesleyan University and Doctor of Philosophy and Medicine degrees from Case Western Reserve University.

Member of the Audit Committee

Holdings: 3,000 shares     View Transactions
Date	Type	Shares Traded	Price Range
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
May 4, 2012	Statement of Ownership	0	n/a
Sep 27, 2010	Statement of Ownership	0	n/a

Other Directorships
Beta Renewables
Elevance Renewable Sciences
Genomatica

Dr. Arthur Levinson has been an advisor to the Research and Early Development Center and a member of the Scientific Resource Board of Genentech, Inc., a biotechnology company, since May 2009. Previously, he served as Chief Executive Officer of Genentech, Inc. from 1995 to April 2009. Dr. Levinson has served as Chairman of the board of directors of Genentech, Inc. since 1999, and also as Chairman of the boards of directors of Apple, Inc. since November 2011 (and as a member since 2000), Hoffman La Roche, Inc. since March 2010 and NGM Biopharmaceutical, Inc. since October 2009. Dr. Levinson previously served on the board of directors of Google Inc. from 2004 to October 2009. Dr. Levinson has also been a member of the U.S. Department of Commerce Innovation Advisory Board since May 2011. He holds a Bachelor of Arts degree in Biology from the University of Washington, Seattle and a Doctor of Philosophy degree in Biochemical Sciences from Princeton University.

Holdings: 217,864 shares     View Transactions
Date	Type	Shares Traded	Price Range
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
May 18, 2012	Buy	211,864	2.36
Jul 19, 2011	Acquisition (Non Open Market)	3,000	n/a

Other Directorships
Apple - Chairman
Genentech

Additional Material Relationship
Dr. Levinson was appointed as Lead Independent Director of the Board in March 2011; previously there was no Lead Independent Director or Chair of the Board.

John Melo has nearly three decades of combined experience as a business leader and expert in the global fuels industry. As President and Chief Executive Officer, Mr. Melo has led Amyris through successful technology development, industrial start up, product development and commercialization and a series of funding rounds, including the initial public offering in the fall of 2010. Before joining Amyris in 2007, Mr. Melo served in various senior management positions at BP Plc (formerly British Petroleum) most recently as President of U.S. fuels operations where he successfully led programs to increase marketing volumes, reduce costs, and significantly improve financial returns. During his tenure at BP, Mr. Melo also served as Chief Information Officer of the refining and marketing segment; Senior Advisor for e-business strategy to Lord Browne, BP group chief executive; and Director of global brand development. In this last role, he helped develop the “Helios” re-branding effort. Before joining BP, Mr. Melo was with Ernst & Young and a member of the management teams for several startup companies, including Computer Aided Services and Alldata Corporation. Mr. Melo currently serves on the board of directors of U.S. Venture, Inc. and Renmatix Inc., serves as Vice Chairman of the Board of Directors of the Bay Area Biosciences Association (BayBio), is a member of the Council for the Portuguese Diaspora and is a member of Young Presidents Organization (YPO). Mr. Melo is an appointed member to the U.S. section of the U.S.-Brazil CEO Forum. When not working on building Amyris or championing the eradication of malaria, John enjoys skiing, reading and time with his family on the Pico Island of the Azores, his childhood home.

Download Photo

Holdings: 305,401 shares     View Transactions
Date	Type	Shares Traded	Price Range
Apr 1, 2013	Disposition (Non Open Market)	6,113	3.06
Jan 2, 2013	Disposition (Non Open Market)	3,364	3.20
Aug 31, 2012	Sell	553,730	3.70
Aug 31, 2012	Sell	115,000	3.70
Aug 31, 2012	Option Execute	553,730	0.28
Aug 31, 2012	Option Execute	115,000	0.28
May 15, 2012	Acquisition (Non Open Market)	3,273	1.53
Apr 9, 2012	Acquisition (Non Open Market)	250,000	n/a
Jan 3, 2012	Disposition (Non Open Market)	3,225	12.27
Oct 10, 2011	Automatic Sell	20,000	17.22
Oct 10, 2011	Option Execute	20,000	0.28
Aug 10, 2011	Automatic Sell	27,500	20.02 - 20.67
Aug 10, 2011	Option Execute	27,500	0.28
Aug 9, 2011	Automatic Sell	23,800	19.66 - 20.44
Aug 9, 2011	Option Execute	23,800	0.28
Aug 8, 2011	Automatic Sell	18,500	20.04 - 20.55
Aug 8, 2011	Option Execute	18,500	0.28
Jul 8, 2011	Automatic Sell	6,000	28.28
Jul 8, 2011	Option Execute	6,000	0.28
Jul 7, 2011	Automatic Sell	7,000	27.97
Jul 7, 2011	Option Execute	7,000	0.28
Jul 6, 2011	Automatic Sell	4,500	28.21
Jul 6, 2011	Option Execute	4,500	0.28
Jul 5, 2011	Automatic Sell	8,000	27.89
Jul 5, 2011	Option Execute	8,000	0.28
Jul 1, 2011	Automatic Sell	19,970	28.05
Jul 1, 2011	Option Execute	19,970	0.28
Jun 30, 2011	Automatic Sell	11,900	28.19
Jun 30, 2011	Option Execute	11,900	0.28
Apr 15, 2011	Acquisition (Non Open Market)	23,000	n/a
Mar 29, 2011	Automatic Sell	53,100	27.99
Mar 29, 2011	Option Execute	53,100	0.28
Mar 28, 2011	Automatic Sell	56,000	27.10
Mar 28, 2011	Option Execute	56,000	0.28

Other Directorships
Renmatix
U.S. Ventures

Piwnica is Director of NAXOS UK, a consulting firm advising private equity, since January 2008. Previously, Ms. Piwnica served as a director, from 1996 to July 2006, and Vice-Chairman of Governmental Affairs, from 2000 to 2006, of Tate & Lyle Plc, a European food and agricultural ingredients company. She was a chairman of Amylum Group, a European food ingredient company and subsidiary of Tate & Lyle Plc, from 1996 to 2000. From 1992 to 1996, Ms. Piwnica held general management positions and board memberships in various other European food companies, including Cacao Barry and Vital Sogéviandes. Ms. Piwnica was a member of the board of directors of Aviva plc, a British insurance company, from May 2003 to December 2011, a member of the Biotech Advisory Council of Monsanto from May 2006 to October 2009, a member of the board of directors of Dairy Crest from 2007 until 2010, and a member of the board of directors of Toepfer Gmbh from 1996 until 2010. In 2010, she was appointed as a member of the boards of Louis Delhaize (retail, Belgium), Eutelsat (satellites, France) and Sanofi (pharmaceuticals, France). Ms. Piwnica holds a Law degree from the Université Libre de Bruxelles and a Master of Laws degree from New York University. She has also been a member of the bar associations of the state of New York, USA and of Paris, France, since 1985 and 1988, respectively.

Member of the Nominating and Governance Committee

Chair of the Leadership Development and Compensation Committee

Holdings: 6,000 shares     View Transactions
Date	Type	Shares Traded	Price Range
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
Jul 19, 2011	Acquisition (Non Open Market)	3,000	n/a

Other Directorships
Elevance Renewable Sciences
Eutelsat
Sanofi

Dr. Fernando Reinach is managing partner of Pitanga Fund, a venture capital fund based in Brazil, since May 2011 and serves as a consultant to Votorantim Novos Negócios Ltda., the private equity arm of Votorantim Group, a large Brazilian industrial group, since June 2010. From 2001 to May 2010, Dr. Reinach was a General Partner at Votorantim Novos Negócios Ltda. Before joining Votorantim, he was involved in the creation of two companies, Genomic Engenharia Molecular Ltda., a molecular diagnostic laboratory, and .ComDominio S/A, a datacenter company. Dr. Reinach holds a Bachelor of Science degree in biology from the University of São Paulo and a Doctor of Philosophy degree in Cell and Molecular Biology from Cornell University Medical College.

Holdings: 176,397 shares     View Transactions
Date	Type	Shares Traded	Price Range
Dec 24, 2012	Buy	83,892	2.98
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
Feb 23, 2012	Acquisition (Non Open Market)	86,505	5.78
Jul 19, 2011	Acquisition (Non Open Market)	3,000	n/a

Other Directorships
NexSteppe - Scientific Advisory Board
SG Biofuels - Scientific Advisory Board

Previous Directorships
Votorantim Ventures

His Highness Sheikh Abdullah bin Khalifa Al Thani has served as Special Advisor to the Emir since his appointment in April 2007, and was Prime Minister of Qatar from October 1996 to April 2007. His Highness has served as Chairman of the board of directors of Qatar Investment and Projects Development Holding Company, a Qatari investment group, since March 2011 and as Chairman of the board of directors of Specialized International Services (SIS) Qatar, a business investment company, since October 2011. His Highness graduated from the Royal Military Academy Sandhurst.

Holdings: 7,487,601 shares     View Transactions
Date	Type	Shares Traded	Price Range
Mar 27, 2013	Buy	1,533,742	3.26
Dec 24, 2012	Buy	3,355,704	2.98
Jul 19, 2012	Acquisition (Non Open Market)	3,000	n/a
Mar 15, 2012	Statement of Ownership	0	n/a

Other Directorships
QIPCO - Qatar Investment & Project Development Co
Specialized International Services (SIS) Qatar

R. Neil Williams has served as Intuit's Senior Vice President and Chief Financial Officer since January 2008. He is responsible for all financial aspects of Intuit, including corporate strategy and business development, investor relations, financial operations and real estate. Before joining Intuit, Mr. Williams was the Executive Vice President and Chief Financial Officer for Visa U.S.A., Inc. In that role, he led all financial functions for the company and its subsidiaries, including financial planning, business planning and financial monitoring. Williams concurrently served as Chief Financial Officer for Inovant LLC, Visa's global information technology organization, responsible for global transactions processing and technology development. His previous banking experience includes senior financial positions at commercial banks in the Southern and Midwest regions of the United States. Williams, a certified public accountant, received his Bachelor's degree in business administration from the University of Southern Mississippi.

Chair of the Audit Committee since 2013

Other Directorships
RingCentral, Inc.

Other Company Affiliations
Intuit, Inc. - Chief Financial Officer