Post-cold-reduction annealing changes the mechanical properties of the steel and is specifically called out in several 10-digit lines (e.g., 7209170040, 7209170070). If a coil is annealed after cold-rolling, it must be classified under the appropriate annealed line rather than a non-annealed line. Mill certificates indicating the final heat treatment state are essential for correct classification.

Australia's BlueScope Steel is a major producer of thin cold-rolled coil, and Australian origin may carry different Section 232 treatment than Asian suppliers. Lead times, minimum order quantities, and available grade certifications also differ by origin. Importers should evaluate both Section 232 status and any active antidumping orders for each candidate origin before committing to a supply arrangement.