In recent years, under the promotion of policy, powder coatings are also widely used in the fields of automobiles and home appliances. Among them, the coating film appearance (gloss and leveling) of thermoplastic powder coatings is poor, and the adhesion between metal is also poor, so it is rarely used in the field of automobile coating, and thermosetting powder coatings are generally used in automobile coating. Thermosetting powder coating is a thermosetting synthetic resin as a film-forming material, in the drying process, the resin is first melted, and then cured into a smooth and hard coating film after chemical crosslinking, the coating film appearance and various mechanical properties and corrosion resistance can meet the requirements of automobile finishing. According to the data, the sales volume of thermosetting powder coatings in China increased from 1.605 million tons to 2.12 million tons in 2017-2020.

The main raw materials of powder coatings are solid powder mixed with resin, curing agent, titanium dioxide, pigments, additives, etc. Under the background of the continuous growth of powder coating production, the consumption of epoxy resin for powder coatings in China is also growing. Epoxy resin is a kind of high molecular polymer, the molecular formula is (C11H12O3)n, which refers to the general name of a kind of polymer containing more than two epoxy groups in the molecule. From 2017 to 2020, the national output of epoxy resin will be between 110 and 1.3 million tons, with certain fluctuation. According to statistics, the output of epoxy resin in China will be 1.34 million tons in 2021, up 4.2 percent year on year.

China has a large demand for high-end epoxy resin and relies heavily on imports. Customs data show that China's import volume of epoxy resin will be 404800 tons in 2020, up 40.2 percent year-on-year. In 2021, China's import volume of epoxy resin will be 315800 tons, down 22% year-on-year. In 2021, the export volume will be 101400 tons, up 114.83 percent year-on-year. In terms of import and export amount, in 2021, the import value of epoxy resin was 1.461 billion US dollars, up 16.41 percent year-on-year, and the export value of epoxy resin in 2021 was 0.433 billion US dollars, up 230.53 percent year-on-year.

At present, there are nearly 70 manufacturers of organic pigments in China. China has become an important producer of organic pigments in the world, and its output has ranked first in the world for many years. In 2018-2019, due to environmental protection policies, international trade relations and other factors, China's organic pigment production decreased slightly. With the continuous improvement of environmental protection technology, the improvement of the international trade environment, and the continuous development of downstream industries in the future, my country's organic pigment market will continue to maintain steady development. In 2021, my country's organic pigment production will be 220000 tons, an increase of 2.8 year-on-year.