North Carolina leads the nation in the production of tobacco and is a major producer of textiles and furniture. It grows 40% of all U.S. tobacco, but the continuing trend is toward diversification. Broilers, hogs, turkeys, greenhouse products, sweet potatoes, corn, soybeans, peanuts, and eggs are important. Plentiful forests supply the thriving furniture and lumber industries. The state has long been a major textile manufacturer, producing cotton, synthetic, and silk goods as well as various kinds of knit items. Other leading manufactures are electrical machinery, computers, and chemicals; the Research Triangle complex near Chapel Hill has spurred high-tech manufacturing, as well as bringing federal jobs into the state. The state also has mineral resources: It leads the nation in the production of feldspar, mica, and lithium materials and produces substantial quantities of olivine, crushed granite, talc, clays, and phosphate rock. There are valuable coastal fisheries, with shrimp, menhaden, and crabs the principal catches. Charlotte developed in the 1980s into a major U.S. banking center, and related businesses have flourished in the area.