Coal mining
Economic units mainly engaged in the exploitation of various types of mineral coal, such as anthracite, bituminous coal, lignite and thermal coal, and beneficiation activities such as cleaning and screening.…
Limestone mining
Economic units mainly engaged in the exploitation of limestone and related rocks, such as dolomite, marl, calcium carbonate and tuff, and beneficiation activities such as crushing and screening.…
Marble mining
Economic units mainly engaged in the exploitation of marble through sizing in mines and beneficiation activities, such as crushing.…
Graphite mining
Economic units mainly engaged in the exploitation of graphite, and in beneficiation activities such as crushing, grinding, flotation and drying of this mineral, whether amorphous or crystalline.…
Gypsum stone mining
Economic units mainly engaged in the exploitation and crushing of gypsum stone.…
Mining of other dimension stones
Economic units mainly engaged in the exploitation of other dimension stones not classified elsewhere, such as quarry stone, basalt, slate and ashlar, and beneficiation activities such as rough cutting and crushing.…
Mining of non-metallic minerals for chemical products
Economic units primarily engaged in the exploitation of minerals valued mainly for their nitrogen and potassium content; the exploitation of bloedite, kieserite, thenardite and glauberite, and the products derived from t…
Extraction of non-associated natural gas
Economic units primarily engaged in the extraction of natural gas from deposits that do not contain oil.…
Iron mining
Economic units mainly engaged in the exploitation of minerals valued primarily for their iron content, such as hematite, magnetite, limonite, siderite, taconite and other ferrous minerals, and beneficiation activities su…
Uranium and radioactive mineral mining
Economic units primarily engaged in the exploitation and processing of minerals valued mainly for their content of uranium, actinium, radium, vanadium, thorium and other radioactive minerals.…
Mining of other clays and other refractory minerals
Economic units mainly engaged in the exploitation and processing of other refractory and non-refractory clays, industrial clays such as Fuller's earth and magnesite, and other refractory minerals such as bentonite, figul…