According to the monitoring data of business agency, the market price of domestic aggregated MDI is 22833 yuan / ton. Some traders have no quotation for the sale of goods, but the transaction price is high. It is heard that there are small orders of 25000 yuan / ton. The supply of main production enterprises is tight. In addition, the inventory of downstream end customers is low, traders mainly control the goods, the mood of downstream inquiry and taking the goods increases, the quotation of mainstream dealers increases gradually, and some traders close their offers and wait-and-see, reluctant to sell.