NAICS 212 is the North American Industry Classification System code for Mining (except Oil and Gas), a subsector in the Mining, Quarrying, and Oil and Gas Extraction sector (21). It divides into 3 more specific codes, including Coal Mining (2121), Metal Ore Mining (2122) and Nonmetallic Mineral Mining and Quarrying (2123).
NAICS 212 is the code for Mining (except Oil and Gas), a subsector in the North American Industry Classification System (NAICS 2022), under 21 (Mining, Quarrying, and Oil and Gas Extraction). It has 3 more specific codes: 2121, 2122 and 2123.
The parent of NAICS 212 is 21, Mining, Quarrying, and Oil and Gas Extraction. Every company under 212 is also counted under 21.