Core Viewpoint - The Producer Price Index (PPI) has decreased by 0.4% month-on-month, with the decline rate remaining consistent with the previous month [1] Group 1: PPI Decline Factors - The primary reason for the PPI decline is the impact of international input factors leading to a decrease in domestic industry prices [1] - Changes in the international trade environment and a rapid decline in certain international bulk commodity prices have affected domestic industry prices [1] - Seasonal declines in domestic energy prices also contributed, particularly with the end of heating season in northern regions, leading to a decrease in coal demand [1] Group 2: Specific Industry Impact - The coal mining and washing industry, as well as coal processing prices, have seen a month-on-month decline of 3.3% due to the seasonal drop in demand [1]