Political Instability: Before getting into global trade and deciding the state where company may wants to do business, it is necessary to determine the type of Government and are there any hurdles or opportunities which the company would face.
Misunderstanding the markets: Not every market in the world works in one defined way nor the customers of different markets have the same preferences. So if a company doesn't analyze the market they are getting into accurately, they will have the hard times settling in there.
Natural Hazards: Natural hazards are unpredictable and are able to give high damage to the companies, so this would also be the risk according to my understanding.
