Bituminous Coal and Lignite Surface Mining, Bituminous Coal Underground Mining, Anthracite Mining, Iron Ore Mining, Gold Ore Mining

Crushed and Broken Limestone Mining and Quarrying, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, All Other Specialty Trade Contractors

Bituminous Coal and Lignite Surface Mining, Dimension Stone Mining and Quarrying, Crushed and Broken Limestone Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining

Crushed and Broken Limestone Mining and Quarrying

Crushed and Broken Limestone Mining and Quarrying, Industrial Sand Mining, Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors

Dimension Stone Mining and Quarrying, Crushed and Broken Limestone Mining and Quarrying, Crushed and Broken Granite Mining and Quarrying, Construction Sand and Gravel Mining, All Other Nonmetallic Mineral Mining

Crushed and Broken Limestone Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining