In 2021, under the guidance of the Henan Provincial Department of Ecology and Environment, 19 industry green development associations organized and carried out green development evaluation work in 20 key industries such as steel, thermal power, and foundry, and released the "Green Development of Key Industries in Henan Province in 2021" to the whole society. Great Wall Casting (CHAENG) ranks fourth in the green development ranking of the foundry industry. 

In order to actively adopt the evaluation results, strengthen the application of the evaluation results, and encourage enterprises to further improve the level of green development, the 204 enterprises with rapid progress in green development improvement, good transformation results, and top green development rankings in 2021 were awarded "Advanced Enterprises in Green Development".

CHAENG has been striving to build a green leading enterprise in the foundry industry. At present, it has invested a total of 20 million yuan to carry out in-depth treatment and upgrading of various production processes, and constantly improve various pollution prevention facilities and systems to ensure the energy saving and environmental protection of the casting process and production process while maintaining the cleanliness and beauty of the factory area, the green coverage rate has reached 46%, and the greening rate of the open space has reached 100%. CHAENG has won many honors such as "Henan Province Land Greening Model Unit" and "Green Casting Demonstration Enterprise" in the forging industry of Henan.