Syngenta South Africa offers crop protection, seed, and digital agri-solutions from its Gauteng base. Email: info.sa@syngenta.com. Syngenta South Africa is a subsidiary of the global agribusiness Syngenta Group, focused on crop protection, seed innovation, and digital agriculture. Based in Johannesburg, Gauteng, the company supports sustainable farming by delivering herbicides, insecticides, fungicides, and seed solutions to South African farmers.