In recent years the United States has become extremely dependent on foreign sources of bauxite, and this supply balance is expected to continue well into the foreseeable future. Open-pit mining operations in Alabama and Georgia are the only active sources of bauxite remaining within the United States. All of the bauxite mined domestically in 1991 was used for nonmetallurgical products, such as abrasive, chemical, proppant, and refractory applications. Domestic production for the year was only about one-tenth the 1990 level, a result of the final closure of all mining operations in Arkansas and a protracted national economic recession. Imports continued to dominate the U.S. market.