The dominant trade corridor for aerospace extrusion billet is from primary smelters in Canada, Norway, Iceland, the United States, and the Gulf to extruders in North America and Europe. Finished aerospace profiles are then exported mainly to aircraft final assembly hubs in the U.S., Canada, France, Germany, China, and Brazil. Bilateral antidumping measures have fragmented the generic aluminum extrusion trade, creating a distinct premium for AS9100-certified aerospace products that are outside the scope of ordinary building and construction extrusions.
U.S. Section 232 tariffs currently impose a 10% duty on most aluminum imports, with broad exemptions for Canada and Mexico under the USMCA. Section 301 tariffs previously added 25% on certain Chinese-origin aluminum mill products. These measures make direct aluminum extrusion exports from China to the U.S. largely uneconomic; instead, Chinese extruders increasingly serve the C919 supply chain, ASEAN countries, and Middle East projects.
In the European Union, anti-dumping and anti-circumvention investigations on aluminum extrusion imports have raised entry barriers for Chinese product and shaped new exporting behavior from Turkey, Vietnam, and Taiwan. The Aerospace Materials Market is thus becoming more biregional: North America sources from domestic billet and Canadian hydro-metal, while Europe balances Airbus demand with imports from Iceland, Norway, and Turkey. Cross-border shipment volumes have shifted from finished profiles toward lower-cost billet and hot-rolled coil, with value-added extrusion occurring closer to final assembly.
The tariff environment also creates costly administrative burdens. Origin certification, metal certificate verification, and mill test report traceability add days to logistics. For aerospace buyers that require controlled material pedigrees, tariff compliance is an additional audit exposure. In the forecast period, export growth is likely to be strongest in Canada, Mexico, and Southeast Asia as companies establish certified extrusion facilities outside the main tariff-affected corridors.