In terms of low-chloride fertilizers, potassium sulfate-SOP (K2SO4) is by far the most widely used product in the world. It contains potassium (K) and sulphur (S), two crucial nutrients, in a form that is easily absorbed by plants. The productivity and quality of high-value crops, such as fruits, vegetables, and tobacco, are improved by the use of SOP. It enhances the crop’s durability, shelf life, and adaptability for industrial processing, as well as its nutritional content, flavor, and look. The use of potassium sulfate can also increase a crop’s resistance to such stresses as drought, frost, disease, and insect infestation. Sulphate of Potash is an ideal macro nutrient source for chloride-sensitive crops and intensive cropping systems since it contains almost no chloride. In many places across the world, SOP is the most efficient and environmentally friendly fertilizer.