Group 1 - The rare earth industry chain is crucially linked to recycling, which has become an important part of the industry due to the non-renewable nature of rare earth resources [1][3] - The upstream of the rare earth industry includes the refractory raw material manufacturing sector, which involves the mining, smelting, and processing of inorganic non-metallic mineral raw materials [1] - The downstream processing of rare earth metals and oxides leads to the production of various materials used in wind power generation, electric vehicles, energy-saving air conditioners, and smart manufacturing [1] Group 2 - China's rare earth mining and smelting are controlled by four major groups, limiting the number of participants in the upstream and midstream sectors [3] - Representative companies in the downstream sector include Zhongke Sanhuan, Lingyi Zhi Zao, and Antai Technology, while recycling is represented by Huahong Technology and Southern Rare Earth [3] - The regional distribution of rare earth companies shows a concentration in Jiangxi, Inner Mongolia, and Zhejiang, with Jiangxi having the highest number of companies at 197, accounting for 16.4% of the national total [5][7] Group 3 - There are 17 major rare earth industrial parks in China, primarily located in Inner Mongolia, Fujian, Jiangxi, Shandong, Sichuan, and Ningxia, with Inner Mongolia having the highest concentration of 10 parks [9]