The dispute traces back to Syngenta’s legacy exposure from its predecessors’ manufacture and distribution of paraquat. Syngenta is facing lawsuits alleging that paraquat it manufactured or distributed caused people various forms of harm. In search of coverage, the company filed suit on May 17, 2021, against a broad group of insurers, including Travelers Casualty and Surety Company, Certain Underwriters at Lloyd’s, AIG entities, Zurich, Allstate, and Employers Insurance Company of Wausau, among others.