The construction industry of Iran is divided into two main sections. The first is government infrastructure projects, which are central for the cement industry. The second is the housing industry. In recent years, the construction industry has been thriving due to an increase in national and international investment to the extent that it is now the largest in the Middle East region. The Central Bank of Iran indicate that 70 percent of the Iranians own homes, with huge amounts of idle money entering the housing market.