Sociedad Quimica y Minera de Chile (SQM) is an integrated producer and seller of specialty plant nutrients, iodine, lithium, potassium fertilizers, and industrial chemicals. Its specialty plant nutrients, potassium chloride, and potassium sulfate are fertilizers that enable farmers to improve yields and the quality of certain crops. The company also provides iodine and its derivatives for the X-ray contrast media and biocides industries and the production of the polarizing film, as well as lithium and its derivatives that are used in batteries, greases, and frits for production of ceramics.