Variant of NAICS 2017 Version 3.0 - Energy sector
- E - Energy sector
- 21i - E - Mining, quarrying and oil and gas extraction
- 212i - E - Mining and quarrying (except oil and gas)
- 2122i - E - Metal ore mining
- 21229 - Other metal ore mining
- 212291 - Uranium ore miningUS
- 212299 - All other metal ore miningUS
- Date modified: