High purity aluminum has good ductility. It can be rolled into extremely thin aluminum foil or extremely thin aluminum wire. Independent aluminum foil with thickness of 0.4 microns can be produced by mechanical rolling, while aluminum film with thickness of 7.5 nanometers can be produced by electrodeposition, but the aluminum film must be attached to the plastic base film.

High-purity aluminum is the product obtained after further purification of ordinary aluminum (aluminum content of 99.00% - 99.85%). China calls aluminum with aluminum content greater than 99.995% high-purity aluminum. Compared with ordinary aluminum, high-purity aluminum has better performance in conductivity, thermal conductivity, plasticity, reflectivity, corrosion resistance and magnetic conductivity. Therefore, the downstream of high-purity aluminum mainly includes electronic industry, national defense, aerospace, information equipment and other fields.

High purity aluminum is widely used, but at present 80% is used in the production of electronic aluminum foil. The production of high-quality electronic foil and electrode foil must use high purity aluminum that meets certain quality requirements, while the technical barrier to produce high-quality high purity aluminum is high. Before 2004, 99.999% of China's high purity aluminum can only be imported from the United States and Japan.

In 2015, China's domestic high-purity aluminum output was 90000 tons, of which Xinjiang Zhonghe output was 40000 tons, accounting for 44.4% of the total domestic high-purity aluminum output in the same period; In 2016, China's domestic high-purity aluminum output was 118000 tons, of which Xinjiang Zhonghe output was 62000 tons, accounting for 52.5% of the total domestic high-purity aluminum output in the same period. China's domestic production of high-purity aluminum is 137000 tons. According to the latest annual report released by Xinjiang Zhonghe in 2017, the company produced 521800 tons of high-purity aluminum in 2017, accounting for 37.4% of the total domestic production of high-purity aluminum in the same period. According to the statistics of China Research Puhua Industry Research Institute, the apparent consumption of China's high-purity aluminum industry reached 132500 tons in 2017, an increase of 13.05% year on year in 2016. In terms of the proportion of downstream applications, the current application is mainly in the electronic information manufacturing industry, followed by aerospace and military industry. China's electronic and electrical industry has basically entered a mature period, and the market demand will be stable without major fluctuations. The aluminum profile electronic and electrical appliance market will also follow this rule and develop steadily. From the perspective of consumption demand scale, it is expected that the growth rate of China's high-purity aluminum demand will be around 10% in the past five years. According to this growth rate, the market size will reach 11.657 billion yuan by 2023.

Zhongyan Puhua believes that the current pressure on the real economy is still large, and the demand growth of the aluminum foil material market for aluminum electrolytic capacitors and the aluminum processing industry slows down and the competition intensifies; However, in the next few years, the development of consumer electronics, new energy, communication facilities and other industries will bring greater development space and opportunities to the aluminum electrolytic capacitor and aluminum foil industry; As the application field of high-purity aluminum continues to expand, the high-purity aluminum industry faces new development opportunities. Therefore, the high-purity aluminum industry as a whole is in the growth stage of the industry, and the domestic technology tends to mature, and the market demand continues to grow.