In 2015, the output of primary aluminum in China exceeded 30 million tons, and the profits of aluminum production and processing enterprises were 54 billion yuan (profits ranked first in non-ferrous metals, 6.5 billion yuan higher than the profit of second-ranked copper metal), and profits An increase of 22% compared with the same period of the previous year (except for metal silver's profit growth of 1.6% year-on-year, other metals have declined to varying degrees). Among them, the output of aluminum sheet and strip reaches the level of 10 million tons, and up to 400 modern and specialized aluminum sheet and strip production enterprises. In recent years, the proportion of aluminum sheet and strip production to primary aluminum production has been maintained at 20% to 30%.