The world’s first Flex Mill®, designed from the ground up to optimize the flexibility, agility and capabilities of mini mill steel technology. One of the world’s first LEED-certified steel mills, reflecting a leader’s commitment to sustainable steelmaking. The first steel mill in North America to combine an electric arc furnace with a Ruhrstahl Heraeus (RH) degasser for cleaner, more formable steels. Big River Steel’s history of firsts brings mini mill excellence to U. S. Steel, along with an innovator’s question-everything mentality that fits perfectly with our 120+ years of experience and insight.
