Basel, Switzerland
February 2, 2007

Syngenta announced today that it has signed an agreement to divest major parts of its Rosental site in Basel to Midus Properties and Premier Properties, two Gibraltar-based real estate companies backed by a group of private investors. The site is jointly held with Ciba Specialty Chemicals, who is also divesting its share to the same acquirer. The Syngenta proceeds from this transaction are approximately CHF 175 million.

Since the creation of Syngenta, a substantial part of the site has been let to third party tenants. Today, the site hosts more than 30 companies and academic institutions mainly active in the life sciences industry. The Company will retain approximately one-third of the site for Syngenta’s global headquarters as well as the headquarters of its European Crop Protection business.

Christoph Mäder, Syngenta Executive Committee member, said: "The Rosental site is an attractive environment for companies and academic research institutes in the life sciences field. We decided jointly with Ciba to divest major parts of the site to a new owner for further development. Managing real estate is not Syngenta’s core business."

Syngenta is a world-leading agribusiness committed to sustainable agriculture through innovative research and technology. The company is a leader in crop protection, and ranks third in the high-value commercial seeds market. Sales in 2005 were approximately $8.1 billion. Syngenta employs more than 19,000 people in over 90 countries. Syngenta is listed on the Swiss stock exchange (SYNN) and in New York (SYT). Further information is available at www.syngenta.com.