According to the Commodity Market Analysis System of Shengyi Society, on the 20th, the domestic TDI market was running weakly, with domestic TDI products priced around 13000-13100 yuan/ton and Shanghai products priced around 13100-13200 yuan/ton. The supplier lacked confidence in raising prices, and downstream purchases were made according to demand. Under the dominance of buying houses, the focus of TDI transactions shifted downwards. At present, there is a strong atmosphere of wait-and-see in the market, and in the absence of favorable demand in the short term, it is expected that the TDI market will have a weak trend.