Over the weekend, the price of iron ore can be inquired from multiple channels, including news media, quotations from mining enterprises, announcements of exchanges, etc. For the iron ore price in the international market, we can know the price changes of the four major iron ore trading platforms in the world, including Brazil's Vale, Australia's Rio Tinto, Belgian Eurometal Exchange and China Dalian Commodity Exchange. In addition, some data platforms such as wind can be used to track iron ore prices through relevant indexes. In short, in order to accurately understand the price of iron ore, we need to obtain information from multiple channels for comparison and analysis.