Liquid sulfur fertilizers, typically in the form of ammonium thiosulfate or liquid elemental sulfur suspensions, have gained traction in modern agriculture due to their high nutrient efficiency, rapid soil absorption, and compatibility with fertigation systems. Production of liquid sulfur fertilizers is concentrated in major agricultural regions such as the United States, China, India, and Europe, leveraging by-products from petroleum refining, natural gas processing, and elemental sulfur.