Late in the evening on March 11, 2025, CBP issued CSMS messages advising that the Secretary of Commerce has certified that “adequate systems are in place to fully, efficiently, and expediently process and collect tariff revenue” for the additional derivatives classified outside of chapters 73 for steel, and 76 for aluminum. For those derivatives, which are pasted below, the 25% duty will be charged on the VALUE of the aluminum or steel content, if known. If the value is unknown, the 25% duty must be charged on the total value of the product.
For derivatives classified under 73 and 76 and listed in the applicable Federal Register Notices, duty is charged on the full value of the article regardless of content.
The CSMS message for Steel can be found HERE. Aluminum HERE
For steel derivatives, effective at 12:01 am, 25% duty will also be charged on the value of the steel content for the following HTS numbers on any shipment that crosses the border after that time. The importer will need to provide BCB with the value of the steel content. If the value is unknown, duty will be charged on the full value. Importers also must provide BCB with the country of melt and pour of the steel. If the steel used to produce the derivative article was melted and poured in the U.S., then the article is exempt from the subject duty.
8431.31.00; 8431.42.00; 8431.49.10; 8431.49.90; 8432.10.00; 8432.90.00; 8547.90.00; 9403.20.00; 9405.99.20; 9405.99.40; 9406.20.00; 9406.90.01.
For aluminum derivatives, the same applies to the below HTS numbers. In addition, BCB requires the (1) primary country of smelt, (2) secondary country of smelt, (3) country of cast of the aluminum. Similar to steel, if the aluminum used to produce the derivative article was smelted and cast in the U.S., the article is exempt from the subject duty.
6603.90.8100; 8302.10.3000; 8302.10.6030; 8302.10.6060; 8302.10.6090; 8302.20.0000; 8302.30.3010; 8302.30.3060; 8302.41.3000; 8302.41.6015; 8302.41.6045; 8302.41.6050; 8302.41.6080; 8302.42.3010; 8302.42.3015; 8302.42.3065; 8302.49.6035; 8302.49.6045; 8302.49.6055; 8302.49.6085; 8302.50.0000; 8302.60.3000; 8302.60.9000; 8305.10.0050; 8306.30.0000; 8414.59.6590; 8415.90.8025; 8415.90.8045; 8415.90.8085; 8418.99.8005; 8418.99.8050; 8418.99.8060; 8419.50.5000; 8419.90.1000; 8422.90.0640; 8424.90.9080; 8473.30.2000; 8473.30.5100; 8479.89.9599; 8479.90.8500; 8479.90.9596 8481.90.9060; 8481.90.9085; 8486.90.0000; 8487.90.0080; 8503.00.9520; 8508.70.0000; 8513.90.2000; 8515.90.2000; 8516.90.5000; 8516.90.8050; 8517.71.0000; 8517.79.0000; 8529.90.7300; 8529.90.9760; 8536.90.8585; 8538.10.0000; 8541.90.0000; 8543.90.8885; 8547.90.0020; 8547.90.0030; 8547.90.0040; 8708.10.3050; 8708.10.60; 8708.29.5160; 8708.80.6590; 8708.99.6890; 8716.80.5010; 8807.30.0060; 9013.90.8000; 9031.90.9195; 9401.99.9081; 9403.10.00; 9403.20.00; 9403.99.1040; 9403.99.9010; 9403.99.9015; 9403.99.9020; 9403.99.9040; 9403.99.9045; 9405.99.4020; 9506.11.4080; 9506.51.4000; 9506.51.6000; 9506.59.4040; 9506.70.2090; 9506.91.0010; 9506.91.0020; 9506.91.0030; 9506.99.0510; 9506.99.0520; 9506.99.0530; 9506.99.1500; 9506.99.2000; 9506.99.2580; 9506.99.2800; 9506.99.5500; 9506.99.6080; 9507.30.2000; 9507.30.4000; 9507.30.6000; 9507.30.8000; 9507.90.6000; 9603.90.8050.