Martin Marietta Materials, Inc. entered into a new $1.5 billion five-year senior unsecured revolving credit facility with JPMorgan Chase Bank, N.A., effective August 18, 2026. This agreement replaces the existing credit arrangement dated December 21, 2021, which had no outstanding borrowings at the time of replacement. The new facility expires on August 18, 2031, and allows borrowings to bear interest based on Term SOFR or a base rate plus a ratings-based margin. The agreement imposes a maximum leverage ratio requirement of 3.75:1.00, with temporary increases permitted following the acquisition of Lhoist North America, Inc., allowing up to 4.75:1.00 for the first three fiscal quarters post-acquisition. Martin Marietta Materials, Inc. operates in the construction materials industry, producing aggregates and ready-mixed concrete.