Platts continues to review feedback on proposed change to US Midwest implied duty-unpaid aluminum premium calculation

Platts, part of S&P Global Commodity Insights, is continuing to review feedback regarding a proposed change to its US Midwest implied duty-unpaid premium calculation for P1020A Midwest aluminum but will not implement it Aug. 1, 2025 as originally proposed.

Feedback from market participants regarding the proposed change indicated a desire for any implementation to take place later than the Aug. 1, 2025 date previously proposed. Following further review, Platts will publish an update -- including a revised date for potential implementation -- regarding its proposal to change the existing calculation to a freight net-forward calculation from Platts CIF New Orleans duty-unpaid assessment to US Midwest consuming locations.

The P1020A MW US Transaction Premium (Implied Duty-Unpaid) delivered US Midwest calculation (MMOFU00) and related assessments currently reflect material with an FOB Canada origin and prevailing Canadian aluminum tariffs. Under the proposal, the calculation would change to reflect a US port of entry to capture imports arriving from multiple origins.

Full details of the proposal to revise the calculation used to derive an implied duty-unpaid value for US aluminum imports can be found here.

Please send feedback, comments and questions to metalsamericas@spglobal.com and pricegroup@spglobal.com.

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing.

Platts will consider all comments received and will make comments not marked as confidential available upon request.