Hunan Er-Kang Pharmaceutical Co., Ltd manufactures and sells APIs, finished drug products, and pharmaceutical excipients in China and internationally. Its APIs include glycerin, dilute hydrochloric acid, sulbenicillin sodium, calamine powder, sulfadiazine, sulphaguanidine, TMP, and resorcinol. The company's finished drugs primarily comprise sulbenicillin sodium for injection and compound liquorice tablets. Its conventional pharmaceutical excipients include pharmaceutical glycerin, medicinal ethanol, medicinal propylene glycol, medicinal sodium hydroxide, and sucrose; and new pharmaceutical excipients comprise hydroxypropyl starch empty capsules, hydroxypropyl starch soft capsules, and citrate and its series products. The company was founded in 2003 and is based in Liuyang, China.