LUHMAN'S CONSTRUCTION CO. OF RED WING

Construction Sand and Gravel Mining

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

Other Nonmetallic Mineral Mining and Quarrying

Establishments in this category are primarly engaged in developing the mine site, mining, and/or milling or otherwise beneficiating (i.e., preparing) nonmetallic minerals (except coal, stone, sand, gravel, clay, and ceramic and refractory minerals). Drylake brine operations are included in this industry, as well as establishments engaged in producing the specified minerals from underground and open pit mines.

Illustrative Examples:

Barite mining and/or beneficiating
Phosphate rock mining and/or beneficiating
Borate, natural, mining and/or beneficiating
Potash mining and/or beneficiating
Peat mining and/or beneficiating
Rock salt mining and/or beneficiating