Nanjing Heng the Si graceful chemical industry Limited company is and so on six chemical plants initiates the being established by Heng Si Man the chemical Limited company, is the home biggest specialized manufacturer. Is the collection production and the sale in a body's industry and trade enterprise. Factory located at Chinese important foundation industrial chemicals production base Shandong Province. Nanjing Heng the Si graceful Limited company carries on the import and export business originally for the Shandong Qingdao in the Nanjing office. In the past more than 20 year management developing process, the business volume expanded unceasingly, the product sold in distant markets Europe and America, areas and so on Southeast Asia and Middle East. Changes the name officially in 2010 as Nanjing Heng the Si graceful chemical industry Limited company. This company is engaged in the chemical raw material export business specially. The product mainly has: Acids, alkalis, salts and pigment and so on.