Nucor Corporation is an American producer of steel and related products based in Charlotte, North Carolina. It is the largest steel producer in the United States, the largest "mini-mill" steelmaker (i.e. it uses electric arc furnaces to melt scrap steel as opposed to blast furnaces to melt iron), and the biggest recycler of scrap in North America. As of 2021[update], Nucor was the 15th-largest steel producer in the world.