Established in 1992 as a trading company, LIBERTY Steel Group has grown into an international, integrated steel and mining business that makes steel from raw and recycled materials through to precision-engineered products. The group operates across more than 200 locations with around 18,000 employees and contractors, supplying industries worldwide while pursuing its GREENSTEEL strategy of recycling scrap and using renewable-powered electric arc furnaces to reduce manufacturing emissions.
ISO 9001
certification
ISO 9120
certification
ISO 9100
certification
ISO 17025
certification
ISO 14001
certification
CE Marking
certification
CARES Approval
certification
ACRS Approval
certification
ProTrade SteelFounded in 1994 as a scrap-metal trading business, ProTrade Steel has grown into a fully integrated company that brokers, processes, transports and exports ferrous and nonferrous scrap. Its Eastern U.S. operation combines four trading offices, two RJ Recycling facilities and a transportation division with more than 300 private railcars, connecting suppliers with domestic mills, foundries and buyers around the world. In 2025, ProTrade transferred full ownership to its employees through an ESOP, adding a shared-ownership model to a business led by a second generation of the Kessick family.BROOKEVILLE, MD
NucorNucor makes steel and fabricated steel products across North America, while also operating the nation’s largest recycling business. The Charlotte-based company grew from its first Vulcraft facility in South Carolina in 1962 into North America’s largest steel manufacturer, with 33,000 teammates and a network of 27 steel mills. Its electric-arc-furnace model relies heavily on recycled steel, and its construction work ranges from structural steel to rebar fabrication, including more than one million tons of rebar delivered annually.WEST HAZLETON, PA
Rio TintoFor more than 150 years, Rio Tinto has mined and processed the metals and minerals used in modern infrastructure and the transition to low-carbon energy. Operating across 34 countries with more than 61,000 employees, the company is especially notable for combining large-scale resource operations with efforts to reduce emissions and improve traceability through initiatives such as ELYSIS and START.PHILADELPHIA, PA
NucorNucor grew from a small Vulcraft operation in 1962 into North America’s largest and most diversified manufacturer of steel and steel products, with recycling at the center of its electric-arc-furnace model. The Charlotte-based company’s 33,000 teammates support a broad family of steel and fabricated-product businesses, while more than 70 scrap recycling centers help turn old infrastructure and other discarded metal into new steel. Nucor’s culture is built around teammate ownership, pay-for-performance and a stated goal of becoming the world’s safest steel company.HALETHORPE, MD