Shareholder information 60 50 40 30 20 10 0 –10 –20 –30 Syngenta Eurotop 300 SMI % Syngenta share price performance  December 31, 2008 – December 31, 2011 Mar Jun Sep Dec Dec Mar Jun Sep Mar Jun Sep Dec Dec 2008 2009 2010 2011 Dec31,2011 CHF275.00 CHF273.50 CHF290.70 70 80 90 60 50 40 30 20 10 0 –10 –20 Syngenta ADS S&P 500 Dow Jones –30 % Mar Jun Sep Dec Dec Mar Jun Sep Mar Jun Sep Dec Dec 2008 2009 2010 2011 Syngenta ADS price performance  December 31, 2008 – December 31, 2011 Dec31,2011 US$58.94 US$58.78 US$56.27 First quarter trading statement April 18, 2012 Annual General Meeting  April 24, 2012 Half-year results July 26, 2012 Third quarter trading statement October 23, 2012 Reporting dates A full form 20-F is accessible at: www.syngenta.com/ir  Investors can subscribe to financial releases via RSS at: www.syngenta.com/ir  The full-year results press release can be viewed up to six months after the event at: www.syngenta.com/fyr2011 Syngenta Annual Review 2011 58 % 2007  29.4 2008  –29.5 2009  48.6 2010 –3.9 2011 2.9 Dividend CHF 2007  4.80 2008  6.00 2009 6.00 2010 7.00 2011 3 8.00 At December 31, 2011 Share price (CHF) 275.00 Share price (US$) (ADS)  58.94 Market capitalization (CHF million)  25,095 Market capitalization (US$ million)  26,688 SIX S wiss E xchange New York Stock  Exchange Shares  SYNN  SYT Shares in issue At December 31, 2011  Number of shares Total shares in issue  93,762,899 of which treasury shares  2,508,759 Syngenta shares are listed on the SIX Swiss  Exchange and on the New York Stock Exchange,  where the shares are traded as ADS (American  Depositary Shares).  1 Trading symbols Share price and market capitalization  2 Dividend history Total shareholder return  4 4 Calculated as return on ordinary shares plus reinvested dividends 3 To be submitted for shareholder approval at the Annual General  Meeting on April 24, 2012 2 For the purposes of calculating market capitalization the number  of shares stood at 91.3 million 1 1 share = 5 ADS