Ammonia for industrial purposes; gallium, namely, gallium for production of semiconductors, catalysts, and alloys; carbonates; sulphuric acid; phosphoric acid; potash; saltpeter, namely, ammonium nitrate for agricultural and industrial use; fluorspar compounds, namely, aluminium fluoride for use in the aluminium industry and sodium silicofluoride for industrial use; fertilizing salts, namely, monoammonium phosphate, diammonium phosphate, or monopotassium phosphate for agricultural and industr...