Tianjin Jinyu Zhenxing Environmental Protection Technology Co., Ltd. is a long-term cooperative unit for our company\'s maintenance, medium and large maintenance and technological transformation projects, and is also the base of our company\'s maintenance sector. Since January 2020, in addition to annual maintenance, it has completed the overhaul of cement mill system, the overhaul of kiln system, dust collection, environmental protection transformation, the renovation of the first-line coal dust silo, the renovation of safety standards, and many other maintenance and technological transformation projects. Now the construction of the first-line kiln tail oxygen reduction technical transformation and the second-line clinker warehouse bottom equipment transformation project is under way.