sad asd Company homeland alum (PJS) with two decades of experience in the field of chemical production was registered in 1375 and initial production of alum (aluminum sulfate) and complete fertilizer Agriculture (microwave in the traditional way). In 1380, with the approval of in principle, create the necessary background and experience to build a plant producing sulfuric acid and then with R & D in the industry day in the world, in 1385 awarded the construction of the first production unit of potassium sulfate and sodium sulfate in the country, and a firm step taken in order to meet the needs of the country and national production.