China is the world's largest producer of magnets, accounting for more than 70% of global production. The country's magnet industry is highly developed and has a complete industrial chain. The distribution of magnet manufacturers in China's industrial chain is as follows:

Raw material suppliers: China is the world's largest producer of rare earth elements, which are the main raw materials for magnets. China's rare earth elements are mainly produced in Inner Mongolia, Jiangxi, Fujian, Guangdong, and other provinces. The main suppliers of rare earth elements are Baotou Steel Rare Earth, China Minmetals Rare Earth, and China Nonferrous Metal Mining Group.

Magnet manufacturers: China has a large number of magnet manufacturers, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet manufacturers include Ningbo Permanent Magnet, Hangzhou Permanent Magnet, and Shenzhen Permanent Magnet.

Magnet processing companies: China has a large number of magnet processing companies, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet processing companies include Ningbo Magnet Processing, Hangzhou Magnet Processing, and Shenzhen Magnet Processing.

Magnet assembly companies: China has a large number of magnet assembly companies, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet assembly companies include Ningbo Magnet Assembly, Hangzhou Magnet Assembly, and Shenzhen Magnet Assembly.

Magnet application companies: China has a large number of magnet application companies, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet application companies include Ningbo Magnet Application, Hangzhou Magnet Application, and Shenzhen Magnet Application.

Magnet testing companies: China has a large number of magnet testing companies, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet testing companies include Ningbo Magnet Testing, Hangzhou Magnet Testing, and Shenzhen Magnet Testing.

Magnet research and development companies: China has a large number of magnet research and development companies, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet research and development companies include Ningbo Magnet Research and Development, Hangzhou Magnet Research and Development, and Shenzhen Magnet Research and Development.

Magnet export companies: China has a large number of magnet export companies, mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian. The main magnet export companies include Ningbo Magnet Export, Hangzhou Magnet Export, and Shenzhen Magnet Export.

In summary, China's magnet industry has a complete industrial chain, from raw material suppliers to magnet manufacturers, magnet processing companies, magnet assembly companies, magnet application companies, magnet testing companies, magnet research and development companies, and magnet export companies. These companies are mainly concentrated in the coastal areas of Guangdong, Zhejiang, Jiangsu, and Fujian.