Most whites were subsistence farmers who traded their surpluses locally. The plantations of the South, with white ownership and an enslaved labor force, produced substantial wealth from cash crops. It supplied two-thirds of the world's cotton, which was in high demand for textiles, along with tobacco, sugar, and naval stores (such as turpentine). These raw materials were exported to factories in Europe and the Northeast. Planters reinvested their profits in more slaves and fresh land, as cotton and tobacco depleted the soil. There was little manufacturing or mining; shipping was controlled by non-southerners.