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. iodized salt, see 1079;
Potable water production by evaporation of saline water, see 3600. |