GREEN DIAMOND PERFORMANCE MATERIALS, INC

Other Crushed and Broken Stone Mining and Quarrying

This includes: (1) establishments primarily engaged in developing the mine site and/or mining or quarrying crushed and broken stone (except limestone and granite); (2) preparation plants primarily engaged in beneficiating (e.g., grinding and pulverizing) stone (except limestone and granite); and (3) establishments primarily engaged in mining or quarrying bituminous limestone and bituminous sandstone.

Illustrative Examples:

Bituminous limestone mining and/or beneficiating
Marble crushed and broken stone mining and/or beneficiating
Bituminous sandstone mining and/or beneficiating
Sandstone crushed and broken stone mining and/or beneficiating

Industrial Sand Mining

This includes establishments primarily engaged in one or more of the following: (1) operating industrial grade sand pits; (2) dredging for industrial grade sand; and (3) washing, screening, or otherwise preparing industrial grade sand.

Abrasive Product Manufacturing

Establishments in this category are primarly engaged in manufacturing abrasive grinding wheels of natural or synthetic materials, abrasive-coated products, and other abrasive products.

Illustrative Examples:

Aluminum oxide (fused) abrasives manufacturing
Buffing and polishing wheels, abrasive and nonabrasive, manufacturing
Diamond dressing wheels manufacturing
Sandpaper manufacturing
Silicon carbide abrasives manufacturing
Whetstones manufacturing

Ground or Treated Mineral and Earth Manufacturing

This includes establishments primarily engaged in calcining, dead burning, or otherwise processing beyond beneficiation, clays, ceramic and refractory minerals, barite, and miscellaneous nonmetallic minerals.