Carnallite, sylvite and other crude natural potassium salts, potassium magnesium sulphate and mixtures of potassic fertilisers, e.g. mixtures of potassium chloride and potassium sulphate (excl. those in tablets or similar forms, or in packages with a gross weight of < 10 kg)
Potassium chloride for use as fertiliser (excl. that in tablets or similar forms, or in packages with a gross weight of < 10 kg)
Potassium sulphate (excl. that in tablets or similar forms, or in packages with a gross weight of < 10 kg)