Syngenta, 3905 Highway 75, Saint Gabriel, LA 70776, US

Olin Chlor Alkai Products has a mercury cell plant in St. Gabriel, La. The company manufactures and markets various products, including chlorine, sodium hydroxide and hydrogen. Its products are used in the water treatment, plastics, pulp and paper, detergents, agricultural chemicals, pharmaceuticals and medical disinfectants industries. Olin Chlor Alkali Products also formulates, produces, packages and distributes several chloro-alkali products and extracted products, including hydrochloric acid that is used in petroleum production and in mining and metal processing. The company's products are used in a range of manufacturing processes, including metal smelting, petroleum production and refining, pulp and paper production and paint manufacturing processes. Olin Chlor Alkali Products sponsors various noncontributory, defined benefit pension plans covering all union and nonunion employees.