1. The national policy of developing photovoltaic power generation was ignored, and the depreciation of equipment was changed from 20 years to 10 years, while the photovoltaic products of Zhongtian Technology were used for 25 years. As a result, Zhongtian Photovoltaic increased its provision by 80 million yuan in 20 17. The larger the industry scale, the greater the accrual. Billions of dollars have been invested, but the profits have not been released, but the depreciation accrual has come out in large quantities, which means that the depreciation accrual expenses of Zhongtian Photovoltaic will offset the profits in recent years, and the rest is very little or even negative. 2. The country suddenly changed the encouragement policy of new energy vehicles inexplicably, canceled the huge subsidies to manufacturers, and shifted to the sales link to avoid the purchase tax. This policy change has led to a decline of about 20% in the profit of automotive lithium batteries, which is extremely unfavorable for Zhongtian Technology to contribute 800 million yuan in net profit to its estimated annual output.