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