In terms of different categories:
PPI for crude oil decreased 55.6 percent year-on-year. PPIs for oil products, such as gasoline, diesel and kerosene decreased 0.2, 13.8 and 28.5 percent respectively.
PPI for cis-butadiene rubber, polystyrene, and polyester filament yarns was respectively declined 37.7, 30.8 and 26.8 percent.
PPI for mining and washing of coal industry was up by 13.9 percent year-on-year. Of which, PPI for crude coal increased 14.2 percent.
PPI for smelting and pressing of ferrous metals dropped 15.0 percent year-on-year. Of which, PPIs for ordinary small, medium, and large-sized rolled-steels, heavy steel plate, and wire rod was correspondingly decreased 14.8, 20.9, 16.7, 25.1 and 23.5 percent, year-on-year.
PPI for smelting and pressing of nonferrous metals was down by 28.6 percent year-on-year. Of the total, aluminum, lead, zinc, and copper came down 21.7, 37.6, 41.4 and 46.4 percent respectively.
In addition, wherein the purchasing price for raw materials, fuels and power products, the price for nonferrous metal materials, fuel and power, ferrous metal materials, and chemical materials decreased 31.8, 12.7, 11.2 and 9.4 percent respectively, year-on-year.
From January to March, a year-on-year growth of PPI fell 4.6 percent, the purchasing price for raw materials, fuels and power products decreased 7.1 percent.