Variant of NAICS 2012 - Energy sector
- Non E - Industries not included in the energy sector
- 21e - Mining, quarrying, and oil and gas extraction, non E
- 212e - Mining and quarrying (except oil and gas), non E
- 2123 - Non-metallic mineral mining and quarrying
- 21232 - Sand, gravel, clay, and ceramic and refractory minerals mining and quarrying
- 212323 - Sand and gravel mining and quarryingCAN
- 212326 - Shale, clay and refractory mineral mining and quarryingCAN
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