Manufacturing, which accounted for about one-fifth of the GDP in the early 21st century, is dominated by small-scale firms that operate with intermediate levels of technology and possess limited processing capabilities. Dozens of foreign-owned maquiladoras (duty-free manufacturing plants) were opened in the late 20th century, and by 1997 they employed as many as 75,000 workers, mostly women. The major products manufactured and processed are food products, beverages, textiles, clothing, chemicals, lumber, and paper products. The production of capital and heavy intermediate goods is minimal. Industrial plants are located largely in the urban areas of San Pedro Sula and Tegucigalpa.
Mineral resources are limited but include silver, gold, lead, zinc, antimony, iron, mercury, and copper. From the 19th to the mid-20th century, the economy was largely dependent upon the production of silver and gold, particularly from El Mochito mine, which was the largest in Central America. Mining accounts for a tiny percent of the GDP, with zinc the leading mineral export