Extraction of salt

This class includes:

• extraction of salt from underground, including by dissolving and pumping
• salt production by evaporation of sea water or other saline waters
• crushing, purification and refining of salt by the producer

This class excludes:

• processing of salt into food-grade salt (e.g. iodised salt), see 10.84
• potable water production by evaporation of saline water, see 36.00