Over the years of its development, Lubei Chemical has adhered to ecological principles, embraced the concept of circular economy and systems engineering. Through the implementation of technology integration and innovation, Lubei Chemical has created circular economy industrial chains such as the one that utilizes phosphogypsum, a by-product of ammonium phosphate, to produce sulfuric acid and co-produce cement while synergistically disposing of sulfur-containing waste, the clean production chain for titanium dioxide, and the deep cascade utilization chain for seawater resources, which have formed the LUBEI circular economy ecological industrial model.