Li Hui, the National Development and Reform Commission, said that the market responded enthusiastically to the release of reserves, and the price of copper, aluminum and zinc remained high at present. In the next step, we will closely monitor the changes in market prices and continue to release material reserves into the market, so as to guide prices to gradually return to a reasonable range. At the same time, National Development and Reform Commission spokesman Meng Wei said, on the one hand, it is required to promote medium-and long-term coal contracts to directly guarantee and fully cover power generation and heating enterprises, to ensure the need for coal for power generation and heating, and to keep the bottom line of coal for people's livelihood. On the other hand, on the basis of the medium-and long-term contracts that have been signed this year, power generation and heating enterprises and coal enterprises have signed a number of medium-and long-term contracts to increase the proportion of medium-and long-term contracts in annual coal consumption to 100%.