The Research Director of Jinrui Futures Institute, Zeng Tong: Through observing the cost curve of the past three years, it is found that the global zinc mine cost curve has been pushed up significantly due to the epidemic. Comparing the C1 cost position of the 50%, 75% and 95% quantiles (calculated based on the zinc mine sales price), it is found that the cost of different quantiles has been increased, and the cost of the tail quantiles has been increased most significantly, while the cost of projects with better quantiles has been increased more smoothly. Jinrui Futures is expected that the global zinc mine output will be around 12.13 million tons in 2023, and the demand will be around 13.54 million tons, with a growth rate of around 2%.