Chile has a prosperous essentially free market economy. Chile is one of the leading industrial nations in Latin America as well as one of its largest mineral producers and is also known for its fruit and wine production. Copper is the nation's most valuable resource. Chile's main imports are petroleum and petroleum products, chemicals, electrical and telecommunications equipment, industrial machinery, vehicles, and natural gas. In addition to minerals, it also exports fruit, fish and fish products, paper and pulp, chemicals, and wine. The chief trading partners are the United States, China, Brazil, Argentina, and South Korea.