Swiss seed company Syngenta AG has sued top U.S. grain exporters Cargill Inc and Archer Daniels Midland Co over losses that U.S. farmers said they suffered from rejections of boatloads of genetically modified corn by China. The lawsuit, filed on Thursday in U.S. district court in Kansas, comes after Cargill, ADM and hundreds of farmers sued Syngenta last year to recover damages linked to the rejections, which began in late 2013.
