Potassium Chloride (MOP)

Potassium Chloride (MOP) with 60% K₂O is the world’s most widely used and most economical source of potassium fertilizer. As the dominant raw material in NPK compound manufacturing and the standard straight potassium fertilizer for chloride-tolerant crops, MOP accounts for approximately 95% of global potassium consumption. Dongkwang Poland supplies standard red and premium white MOP grades in both standard (0.1-1mm) and granular (2-4mm) forms for direct application, blending, and industrial processing. We serve importers and distributors across India, Brazil, Southeast Asia, West Africa, and the EU.

MOP dissociates in soil moisture to release K⁺ and Cl⁻ ions. Potassium is immediately adsorbed by clay mineral interlayer sites and organic matter, creating a plant-available exchangeable K pool. K⁺ functions in over 80 enzyme systems, regulates stomatal opening for water use efficiency, drives sucrose transport in phloem, and activates starch synthase for grain/tuber filling. The chloride component (47% Cl⁻) is a micronutrient in its own right — beneficial for osmotic adjustment and suppressing certain fungal diseases (take-all in wheat, stripe rust in barley).

Ideal For

Store in dry, covered conditions. MOP is moderately hygroscopic — prevent moisture exposure. Standard grade is more prone to caking than granular. Shelf life: 24 months in sealed packaging. Anti-caking agents applied to export-grade product. Store separately from urea and ammonium nitrate.