On March 23rd, the United States unilaterally announced a large-scale tariff increase on goods imported from China, which seemed to be the prelude to the trade war with China. Recently, the world's major stock indexes, cotton futures contracts and cotton spot all showed a continuous downward trend. The price of pure cotton yarn also fluctuates. On March 26th, the price of standard grade 3 128 cotton in Xinjiang spot market was about 15400 yuan/ton, down about 200 yuan/ton from last week, and the transaction was sluggish.