089100 Mining of chemical and fertiliser minerals

This type includes:

• mining of natural phosphates and natural potassium salts

• mining of native sulphur

• extraction and preparation of pyrites and pyrrhotite, except roasting

• mining of natural barium sulphate and carbonate (barytes and witherite), natural borates, natural magnesium sulphates (kieserite)

• mining of earth colours, fluorspar and other minerals valued chiefly as a source of chemicals

This type also includes:

• guano mining

• mining of medicinal mud

• extraction processes to produce lithium from brine

This type excludes:

• extraction of salt, see 089300

• roasting of iron pyrites, see 201300

• manufacture of synthetic fertilisers and nitrogen compounds, see 201500