The US has maintained antidumping and countervailing duty orders on magnesium from China covering certain wrought forms. Scope language in these orders is product-specific, so importers must carefully compare their product's alloy composition, form, and processing against the order scope before entry. A scope ruling request to the Department of Commerce is advisable when the product's coverage is ambiguous.

Importers should obtain mill test reports specifying the alloy designation (e.g., AZ31, AZ61), temper condition, chemical composition, and mechanical properties in accordance with ASTM or equivalent standards. This documentation supports both customs classification and downstream customer quality requirements, and is essential evidence if a scope or origin inquiry arises under an antidumping order.