Into June, high temperature and rainy season on the construction of a more obvious impact on the market demand is more weak terminal. From the supply side, according to China Steel Association statistics, in early June the focus of iron and steel enterprises in the average daily production of 185.93 million tons, the chain increased by 5.41%, tons of steel profit high, strong expansion of steel mills; Production capacity or concentrated in the second half, is expected to short-term supply of steel pressure is still unabated. In addition, according to the National Bureau of Statistics data released in the first five months of this year, the average daily production of crude steel were higher than the same period last year. Among them, the daily output of crude steel from January to February was 2.1825 million tons, an increase of 5.8%; March to 232.26 million tons, an increase of 1.8%; April to 242.59 million tons, the highest level in history, an increase of 4.9%; May to 233.10 million tons, an increase of 1.8%.