Mack Assumes Role of Chairman
Hull Named Head of Corporate Communications and Public Affairs

Syngenta announced today that Michael Mack, president of Syngenta Crop Protection Inc., will assume the role of chairman of Syngenta Corporation effective Oct. 1. Mack will succeed Bob Woods, who will retire from the company at the end of November. Mack was named president of Syngenta Crop Protection in Sept. 2002. He has responsibility for the company's North American crop protection operations, based in Greensboro.

Syngenta Corporation is the parent company of Syngenta's North American business, including Syngenta Crop Protection, Inc. and Syngenta Seeds, Inc. In addition to chairing the Board of Directors, Mack will assume responsibility for government affairs and corporate communication. Syngenta Corporation headquarters will remain in Wilmington, Delaware.

Bob Woods has served as chairman of Syngenta Corporation since April 2001. He began his career when he joined Chipman Chemicals, a Canadian subsidiary of ICI plc, in 1965 and moved to the United States as a sales representative in 1971. Woods held a series of important posts within the agricultural products business. In 1990, he was named president of ICI's U.S. and Canadian agrochemical and seeds group, later known as Zeneca Ag Products.

Syngenta also announced that Sarah S. Hull has been appointed vice president of corporate communications and public affairs effective Oct. 1. Hull will be based in Washington, DC, and will report to Mack. Hull was formerly a vice president at Robinson, Lake, Lerer and Montgomery in Washington, D.C. and a senior vice president and partner with Fleishman-Hillard in Kansas City. Her most recent post was global public affairs lead for Monsanto in St. Louis.