The stock of coal gangue in Inner Mongolia is 2.4 billion tons. According to the data released by the Inner Mongolia Autonomous Region Development and Reform Commission, as of April 26, 2023, the cumulative stock of coal gangue in Inner Mongolia has reached about 2 billion tons, of which most of the coal gangue is distributed in Hulunbuir, Chifeng, Ulanqab, Xilin Gol and other places.

A company in Inner Mongolia that produces coal series kaolin from coal gangue signed a Φ4.2×76m rotary kiln with Zhengkuang in July 2022. Due to production needs, the two parties cooperated happily, and signed a Φ3.8×11.5m large ball mill equipment again in September 2023. During the progress of the entire project, Zheng Kuang strictly controlled every detail. From the initial planning stage to equipment procurement, to manufacturing, installation and commissioning, every step has been carefully arranged and executed. The project team worked closely together to overcome each challenge and ensure the progress and quality of the project.

The smooth delivery of the Φ3.8×11.5m ball mill project not only marks that the company's production capacity and technical level have reached a new height, but also injects a strong impetus into the company's market competitiveness. This will help to further expand the company's market share, enhance brand awareness, and expand more opportunities for business cooperation.