Hengyang LIDA Chemical Co., Ltd. was established in September, 2014. The company is a professional enterprise engaged in arsenic cake disposal and sodium pyrosulfite, anhydrous sodium sulfite production. The company is located At No. 7 of Huagong road in Hengyang City Songmu Economic Development Zone, close to 107 national road, Beijing-Zhuhai high-speed, Beijing-Guangzhou railway, Xiangjiang waterway through them. There is convenient highway, railway, waterway transportation. The company covers an area of 35289.64 square meters, with the existing staff of more than 100 people, the registered capital of 5 million yuan, the total investment of about 120 million yuan, annual output value of about 300 million yuan.

Based on the rich resources in Hengyang area, the company closely combined with the current domestic and foreign sodium metabisulfite, anhydrous sodium sulfite market demand. In November 2021, the company introduced the strong cooperation with Hunan Yueyang Sanxiang Chemical Co., Ltd. to upgrade equipment technology. With an additional investment of more than 20 million yuan, the company has realized the business philosophy of combining incineration treatment with roasting tail gas treatment, realizing comprehensive utilization of resources and turning waste into treasure. At present, the company can process more than 30,000 tons of sulphur-containing arsenic cake every year, produce 50,000 tons of sodium metabisulfite, 20,000 tons of sodium sulfite, 1,000 tons of metal arsenic, and extract rhenium, copper and other high-value metals from waste residue. The company provides raw materials for the production of rhenium for the military industry, making the enterprise become a high-tech enterprise, which not only combines the advantages of domestic resources, but also embodies the circular economy concept of the pine economic development zone.