Agriculture is the mainstay of Haiti economy. Two-thirds of all Haitians depend on the agricultural sector; mainly small-scale subsistence farming. Subsistence crops include cassava, rice, sugarcane, sorghum, yams, corn, and plantains. Industries in Haiti are basically dependent on sugar refining, textiles, cement, and flour milling. Energy industry of Haiti is primarily dependent on Hydro power. Major minerals of Haiti include bauxite, gold, copper, and calcium carbonate. Major exports of Haiti are light manufactures, coffee, cotton, cocoa, mango, sugar, bauxite, and essences. Major imports include food, machinery, manufactured goods, fuel and transport equipment. The United States is the country's leading trading partner.