Quarrying of ornamental and building stone, limestone, gypsum, chalk and slate
- ROYALE-MERCHANTS LIMITED
- IRONSTONE AR UK LTD
- Quarrying of ornamental and building stone, limestone, gypsum, chalk and slate in Boston
- Quarrying of ornamental and building stone, limestone, gypsum, chalk and slate in London
- Deep coal mines
- Extraction of crude petroleum
- Extraction of natural gas
- Extraction of peat
- Mining and quarrying n.e.c.
- Mining of chemical and fertilizer minerals
- Mining of iron ores
- Mining of other non-ferrous metal ores
- Mining of uranium and thorium ores
- Operation of gravel and sand pits; mining of clays and kaolin
- Support activities for other mining and quarrying
- Support activities for petroleum and natural gas extraction