Potassium chloride (commonly known as potash or mop) is the most commonly used source of potassium in agriculture, accounting for approximately 95% of all potassium fertilizers used worldwide. Mops have a high nutrient concentration and are therefore relatively price-competitive with other forms of potassium. Mop Chemical Composition Moisture Weight % (Max) – 0.5 % Water Soluble Potassium Salt (as K2O) Weight % (Min) – 60% Sodium as NaCl Weight % (Dry Basis) Max – 3.5 % Brand: tak agro imported from Ukraine's agricultural crops include pastures, sugar cane, fruit trees, vegetables and other field crops.