April is the transitional month from peak season to off season in 2019. In February, the start-up rate of plastic film enterprises increased; in March, plastic film enterprises entered peak season production; in early April, they maintained peak season production; in late April, plastic film orders shrank and entered the conversion period, and the demand for plastic film began to decrease.

As of April 19, the start-up rate of agricultural film has dropped to about 46%, of which the start-up rate of plastic film has dropped to about 64%; in North China, the start-up rate of plastic film is about 59%; in Northwest China, the start-up rate is about 63%, the order of plastic film has begun to decrease, and the start-up has continued to decline. A small number of plastic film enterprises have stopped working and repairing, and some enterprises said that the film will enter the off-season at the end of April.

At the beginning of April, linear prices rose slightly, but plastic film orders began to decrease, raw materials were available, linear prices fell in the second half of the month. In addition, a small number of enterprises in Northwest China have stopped working and repairing, plastic film prices have greater upward resistance, some enterprises'profits have decreased, enterprises' procurement enthusiasm is not high, and support for upstream raw materials has decreased.

The demand for plastic film began to weaken in mid-April, and plastic film orders continued to decrease. Some enterprises were facing phased parking. Agricultural film enterprises were cautious, and plastic film orders were insufficient. Most of them had a downward trend.