STEEL DYNAMICS, INC. $600,000,000 5.375% Notes due 2034 UNDERWRITING AGREEMENT dated June 26, 2024 Morgan Stanley & Co. LLC BofA Securities, Inc. Wells Fargo Securities, LLC UNDERWRITING AGREEMENTUnderwriting Agreement • June 28th, 2024 • Steel Dynamics Inc • Steel works, blast furnaces & rolling mills (coke ovens) • New York
