Ningxia Jingcheng Tianbao Technology Co., Ltd. is a technology-based private enterprise that comprehensively utilizes zinc containing solid waste resources and is environmentally friendly. The company was founded in August 2003 and invested 400 million yuan in 2015 to establish a production base in Qingtongxia Industrial Park, Ningxia, with an annual output of 20000 tons of feed grade zinc oxide and 40000 tons of zinc sulfate. The company takes "standardizing the industry and creating benchmarks" as its original intention, adheres to the concept of "good zinc source, good zinc", integrates research and development, production, and service, and through technological innovation and green circulation, is one of the earliest trace element feed additive enterprises in China to achieve process design standards and full field scientific research cooperation. On the basis of the manufacturing platform for trace element feed grade zinc oxide products, the company continues to recover rare and small metal elements such as indium, gallium, germanium, tin, copper, cadmium, etc. that accompany zinc containing solid waste, and also has the production qualifications and capabilities for trace element premixed feed and compound agricultural fertilizer.