First, due to the impact of the financial crisis, international buyers are cash-strapped, purchasing power declines or purchasing cycle is prolonged, which not only affects the sales volume of China's API, but also increases the operating risks of export enterprises.

Second, the sharp rise and fall of the price increases the concern and wait-and-see of international buyers, affecting the stable development of API market.

Third, the price increase of some API is relatively large, which causes the impulse of enterprises to expand production capacity and aggravates the contradiction of oversupply in the market.

Fourth, the devaluation of the currencies of the main export destination countries and competitors reduces the price competitiveness of China's API and makes it more difficult to export.

Fifth, the financial crisis has aggravated international trade protectionism and further worsened the environment in some of China's export markets.