TMS International is the leading provider of on-site, industrial steel mill services for steelmakers around the world. TMS provides invaluable resources that support and enhance its partners’ entire manufacturing operations. TMS International is the largest provider of outsourced industrial services to steel mills in North America as measured by revenue and has a substantial and growing international presence. As of October 2025, the company services clients across 11 countries and five continents, providing mill services at approximately 70 customer sites and maintaining a global raw material procurement network.