CHEMICAL PRODUCTS FOR INDUSTRIAL USE, namely, CLAYS AND CLAY MINERALS, namely, [ KAOLITE, HECTORITE, ] MONTMORILLONITE [, NONTRONITE, VERMICULITE, ILLITE, AND MICA, ALL ] FOR USE AS SWELLING, THICKENING AND THIXOTROPIC AGENTS FOR THE MANUFACTURE OF SUSPENSIONS, [ FOR USE AS ADDITIVES FOR THE FLOATATION OF ORES, FOR USE AS FILLERS FOR MANUFACTURING SOAPS, PAPER, CARDBOARD AND PLASTICS, FOR USE AS BLEACHING AGENTS, ADSORPTION AGENTS AND DRYING AGENTS IN MANUFACTURING PROCESSES, FOR USE AS CATALYSTS AND CATALYST CARRIERS IN THE CHEMICAL AND PETROLEUM INDUSTRIES, AND FOR USE AS AGENTS FOR INDUSTRIAL PURIFICATION OF WATER AND WASTE WATER; FOUNDRY AUXILIARIES, namely, MOLDING SAND, CLAY SAND, BONDING CLAYS, CHEMICAL BINDING AGENTS FOR MOLDING SAND AND CORE SAND; AND MOLD RELEASE AGENTS FOR USE WITH SAND AND PIG MOLDS, CORES AND LASTING INGOT MOLDS; ] AUXILIARY AGENTS FOR USE IN CONSTRUCTION WORK, namely, CLAYS AND CLAY SUSPENSIONS FOR USE AS [ FLUSHING AGENTS AND AUXILIARY AGENTS IN THE OIL DRILLING INDUSTRY, DIAPHRAGM WALL AND TUNNEL BORING INDUSTRIES, AND CAISSON, SHAFT, PIPE AND WELL SINKING INDUSTRIES, FOR USE AS SEALING MATERIALS AGAINST EFFLUENT SEEPAGE THROUGH POROUS OR WATER PERMEABLE FORMATIONS OR ROCK IN THE CONSTRUCTION OF GARBAGE LANDFILL FACILITIES, FOR USE AS FILLER FOR EMBEDDING UNDERGROUND CABLES, FOR USE AS ] ADDITIVES FOR CONCRETE AND TAR, ASPHALT AND BITUMINOUS EMULSIONS