Syngenta AG (SYT)

1. Basis of preparation of the consolidated financial statements

The consolidated financial statements of Syngenta have been prepared in accordance with International Financial Reporting Standards (IFRS), which comprise standards and interpretations approved by the International Accounting Standards Board (IASB), and International Accounting Standards and Standing Interpretations Committee (SIC) interpretations approved by the International Accounting Standards Committee (IASC) that remain in effect. The consolidated financial statements have been prepared on an historical cost basis, except for the measurement at fair value of investment properties, derivative financial instruments and available-for-sale financial assets. These principles differ in certain significant respects from US generally accepted accounting principles (“US GAAP”). Application of US GAAP would have affected shareholders’ equity and net income for the years ended December 31, 2005, 2004 and 2003 as detailed in Note 33 to the consolidated financial statements. The accounting policies disclosed in Note 2 apply to the financial statements prepared under IFRS.

The consolidated financial statements are presented in United States dollars (“US$” or “US dollars”) as this is the major currency in which revenues are denominated.

The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimated. Note 2 below includes further discussion of certain critical accounting estimates.

1. Basis of preparation of the consolidated financial statements

The consolidated financial statements of Syngenta have been prepared in accordance with International Financial Reporting Standards (IFRS), which comprise standards and interpretations approved by the International Accounting Standards Board (IASB), and International Accounting Standards and Standing Interpretations Committee (SIC) interpretations approved by the International Accounting Standards Committee (IASC) that remain in effect. The consolidated financial statements have been prepared on an historical cost basis, except for the measurement at fair value of investment properties, derivative financial instruments and available-for-sale financial assets. These principles differ in certain significant respects from US generally accepted accounting principles (“US GAAP”). Application of US GAAP would have affected shareholders’ equity and net income for the years ended December 31, 2004, 2003 and 2002 as detailed in Note 33 to the consolidated financial statements. The accounting policies disclosed in Note 2 apply to the financial statements prepared under IFRS.

The consolidated financial statements are presented in United States dollars (“US$” or “US dollars”) as this is the major currency in which revenues are denominated.

The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimated.