1 CHEMICALS USED TO PRESERVE THE FRESHNESS AND QUALITY OF FOOD; CHEMICALS FOR USE IN THE METAL, CERAMICS, PLASTICS, MINERAL OIL, NATURAL GAS, GLASS, FOOD, PAPER, RUBBER, WATER TREATMENT, ELECTRICAL AND ELECTRONICS INDUSTRIES, NAMELY, FLUOROCARBON CHLORIDES, REFRIGERANTS, ADSORPTION AGENTS AND CATALYSTS; CHEMICALS FOR USE IN OPTICAL IMAGERY, NAMELY, BARIUM CARBONATE, BARIUM NITRATE AND STRONTIUM CARBONATE; SOLDERING CHEMICALS AND FLUXES; MINERAL RAW MATERIALS FOR USE IN THE PRODUCTION OF GLASS AND CHINA, NAMELY, MICA, POTASH SALT, ROCK SALT, BARIUM SULPHATE, CALCIUM FLUORIDE, LEAD SULPHIDE, CLAY CALCITE, PHOSPHATE, PHONOLITE AND BARITE; FERTILIZERS FOR AGRICULTURAL USE; SYNTHETIC RESINS IN THE RAW STATE IN THE FORM OF POWDERS, SOLUTIONS AND PASTES, FOR USE IN MANUFACTURING