Platts compiled Platts price index data and collected data from miners, steel mills and steel traders by telephone inquiry. Among them, 30 to 40 "most active enterprises" will be selected for inquiry, and their valuation is mainly based on the highest inquiry of the buyer and the lowest quotation of the seller on that day, regardless of whether the actual transaction takes place. 20 10 Platts price index was selected as the basis of iron ore pricing by the three major mines in the world. \x0d\ Platts price index is set by Platts. Platts energy information and credit rating agency Standard & Poor's belong to McGonagall Group. According to media reports, Platts Energy Information is the world's leading provider of energy, petrochemical and steel information, and an important institution for evaluating benchmark prices in the spot market and futures market. These information include: carbon emissions, coal, electricity, oil, natural gas, steel, nuclear energy, petrochemical and maritime markets, which have affected energy enterprises in more than 50 countries around the world. Platts Energy Information's valuation of iron ore has become the basis of global iron ore pricing; Its valuation of crude oil is adopted by the international crude oil market and becomes the basis of trading and pricing; It is also expanding its influence in coking coal, alumina and shipping markets. \x0d\ For more information about Platts index of iron ore, please visit:/ask/F6d12b1615823153.html? Zd view more content