chemicals, namely silicas for general industrial use; desiccants for use as humidity buffers for electronics, insulated glass, windows, artwork, cosmetics, pharmaceuticals, refrigerants, chromatography, petrochemical and refining industry and foods products, silica gel adsorbents used as desiccants for pharmaceutical containers; fluid-cracking catalysts used in the petroleum field; polyolefins used in the petroleum industry and in polyethylene processing; hydrogenation catalysts for use in the chemical process industry; catalysts for the control of gaseous pollutant emissions in vehicles and in stationary industrial power plant systems; metal tolerance and hydrogen selectivity additive for use in the manufacturing of gasoline; chemicals for use in the manufacture of pharmaceuticals and toothpastes; chemical polishing powders, rare earth chemicals for general industrial use; chemical catalysts for emission control; molecular sieves for use in fluid cracking catalysts; silica used in the food and beverage industries and in edible oil refining, ethanol production, and in the manufacture of polyethylene resins, plastic containers and films, paints and coatings