"We are not disclosing the details of the agreement with CFIUS to respect the confidentiality of the process," a Syngenta spokesman said by email in response to a Reuters query. "Any mitigation measures are not material to Syngenta's business."

The Committee on Foreign Investment in the United States (CFIUS) cleared ChemChina's $43 billion takeover of Swiss pesticides and seeds group, the two companies said earlier, boosting chances that the largest foreign acquisition ever by a Chinese company will go through.

(Reporting by John Revill; Editing by Michael Shields)