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Found 3 results for "underground mining"
Underground Coal Mining
NAICS code 212115 covers establishments primarily engaged in underground mining of bituminous and anthracite coal. This sector includes operations tha...
Other Nonmetallic Mineral Mining and Quarrying
NAICS code 212390 encompasses establishments engaged primarily in the extraction, development, and processing of nonmetallic minerals excluding coal,...
Mining Machinery and Equipment Manufacturing
NAICS code 333131 covers establishments primarily engaged in manufacturing underground mining machinery and equipment, including coal breakers, mining...