3102            |    Mineral or chemical fertilisers, nitrogenous.
3102.10.00   - Urea, whether or not in aqueous solution
3102.21.00     -- Ammonium sulphate
3102.29.00     -- Other
3102.30.00   - Ammonium nitrate, whether or not in aqueous solution
3102.40.00   - Mixtures of ammonium nitrate with calcium carbonate or other
3102.50.00   - Sodium nitrate
3102.60.00   - Double salts and mixtures of calcium nitrate and ammonium
3102.80.00   - Mixtures of urea and ammonium nitrate in aqueous or
3102.90.00    - Other, including Mixtures not specified in the foregoing subheadings