The 2022 edition of the catalogue lists industrial energy - saving technologies and energy - saving technologies in the information technology field, such as in the fields of iron and steel, non - ferrous metals, data centers, and telecommunications. In addition, the catalogue also recommends 8 types of high - efficiency energy - saving equipment, including electric motors, transformers, industrial boilers, fans, compressors, pumps, plastic machinery, and internal combustion engines. The relevant catalogue can be downloaded through the website of the Ministry of Industry and Information Technology.Download.