1. incorporation fee: multinational companies need to follow local laws and regulations when investing overseas, and complete the procedures of company registration and approval.

2. Cost of complying with laws and regulations: Multinational companies need to comply with local laws, tax policies and environmental regulations.

3. Cultural differences and communication costs: Multinational companies may face cultural differences in different countries and regions when investing overseas.

4. Foreign exchange risk cost: When multinational companies invest overseas, they need to convert their local currencies into foreign currencies and face the risk of foreign exchange fluctuations.