Sri Lanka has a two-band import tariff schedule based on the Harmonized System of Classification. In 2002, the standard import tariff rates were 10% or 25%, although a few items carried tariffs of 5% or 35%. The tariff on automobiles is 25%. All imports of textile materials, yarn, and all related intermediate and capital goods required for the garment export industry are free of import duty as are a number of products critical to economic development like computers, medical and dental equipment, telecommunications equipment, and agricultural seeds and machinery. Within Sri Lanka's free trade zone, imports of industrial and construction equipment, base metals, and coal and coke are duty-free. Export duties are levied on tea, rubber, and coconut products.