BASIC ALKALI PRODUCTS-NAMELY, SODA ASH, CAUSTIC SODA, AND MODIFIED FORMS OF EACH OF VARYING ALKALI CONTENT; BICARBONATE OF SODA; CHROMIUM CHEMICALS; SILICATE PRODUCTS; CALCIUM CARBONATES; CHLORINATED PRODUCTS AND ORGANIC INTERMEDIATES-NAMELY, CHLORINATES SOLVRNTS, CHLORINATED PARAFFINS, AND HEXACHLOROBUTADIENE; SYNTHETIC RESINS; AND AGRICULTURAL CHEMICALS-NAMELY,PESTICIDES