Ceramic pellets, shots, or spheres for use in oil well and gas well hydraulic fracturing operations and as a gravel pack material for sand control operations

industrial chemicals; chemical preparations for scientific purposes; photographic chemicals; chemicals for use in agriculture, horticulture and forestry except fungicides, herbicides, insecticides and parasiticides; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering preparations; soldering chemicals; chemical substances for preserving foodstuffs; tanning agents for use in the manufacture of leather; adhesives used in industry

CHEMICALS USED IN INDUSTRY, SCIENCE, PHOTOGRAPHY, AGRICULTURE, HORTICULTURE AND FORESTRY, EXCEPT FUNGICIDES, HERBICIDES, INSECTICIDES AND PARASITICIDES; UNPROCESSED ARTIFICIAL RESINS, UNPROCESSED PLASTICS; MANURES; FIRE EXTINGUISHING COMPOSITIONS; TEMPERING SUBSTANCES AND SOLDERING CHEMICALS; CHEMICAL SUBSTANCES FOR PRESERVING FOODSTUFFS; TANNING SUBSTANCES, NAMELY, TANNING AGENTS FOR USE IN THE MANUFACTURE OF LEATHER; ADHESIVES USED IN INDUSTRY