This is such a broad question that it can be answered in many different ways. If a company wants to invest in foreign markets, then that company should consider many important things.
Internally, the company should gauge whether they are in a position to invest. Some companies overextend themselves and this can be disastrous in this economic climate, where you might need larger cash reserves.
Second, that company should do due diligence to know what that foreign market is like. Some market research will be important here. In light of this, they might want to hire a consulting company.
Third, if possible, that company should talk with government official to see what they are thinking. Working with the government can be essential. If you need special licenses or permission, then the government can help you. Without the government on your side, there can be may hardships later on, which can bankrupt you.