Expansion has always been key to the world flat glass industry. Since it’s impractical to ship glass long distances, companies must open a new plant whenever they enter a new intended market. But with the cost to open a float plant with a 500 metric ton per day capacity between $150 and $200 million, flat glass producers must be sure that such a large investment will pay off. As a result, in recent years more companies have been expanding in developing areas, where less mature markets have a greater potential for growth.