Beijing swhc Techonlogy Co., Ltd.. based on the advantages of talents, resources and transportation, it engages in the S&T, development and production of Nitrate series, sodium gluconate, fertilizer series, concrete admixture products and pharmaceutical intermediates. There are production bases in Beijing, Shanxi and Hebei. It has four categories as chemical, fertilizers, construction materials and pharmaceutical intermediates and more than 50 sorts of products