Free ports are ports or airports through which goods may pass without payment of customs duties and taxes. Free ports attract a large number of support and service industries. They provide an important source of employment and act as an investment incentive.
Hong Kong and Singapore are among the world’s best-known free ports. In the Philippines, the government created a free port zone at Subic Bay after United States forces withdrew from their naval base there in 1992. Free ports in the Caribbean include Kingston and Montego Bay, Jamaica.
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An example of a free port that deals with air cargo is the area around Shannon Airport in the Republic of Ireland. It became a duty-free zone in 1947.