What are the difficulties and problems of foreign trade factories?

Foreign trade factories have four difficulties and problems. The first is the shortage of talents. The second is that the risk is relatively high and it is easily affected by exchange rate fluctuations. The third is relatively high cost, such as high cost of foreign trade platform, high cost of participation and high cost of team. The fourth is that the effect is poor, and the input and income may be unbalanced, which may lead to great waste of water resources.