Our Company

About Us

Proud to be a part of the SDI Team

About Us

We are excited about the transformational growth and long-term value creation that our new Sinton, Texas Flat Roll Steel Mill represents. The Sinton Steel Mill is designed with a three million ton annual production capacity, which includes a galvanizing line (with GalvalumeĀ® capability) and a paint line, with an additional galvanizing line and paint line coming online mid-2023.

Steel Dynamics Operations

Steel Dynamics is comprised of its Flat Roll Group that produces various flat roll products as well as its Long Products Group that produces, structural shapes, specialty shapes, rail, engineered- and merchant-bar products.

In addition to the Flat Roll Group and Long Products Groups, Steel Dynamics includes OmniSource, an extensive metals-procurement and recycling division and New Millennium Building Systems which produces Steel Joist and Deck products.