The U.S. has imposed a 93.5% anti-dumping tariff on Chinese active anode materials.
The U.S. Department of Commerce has announced a preliminary imposition of a 93.5% anti-dumping (AD) duty on Chinese active anode material (AAM) products—a key component in lithium-ion batteries used in electric vehicles and energy storage systems. Taking into account the existing countervailing duty (CVD) of approximately 11.5%, Trump-era tariffs of 30%, and the Section 301 tariff of 25%, the total effective tariff rate now reaches around 160%.
Where did this come from?
The decision stems from petitions filed on December 18, 2024, by the American Active Anode Material Producers (AAAMP) consortium, which includes companies such as Anovion Technologies, Syrah Technologies LLC, Novonix Anode Materials, Epsilon Advanced Materials, and SKI US Inc. The petitions alleged both dumping (with AAAMP estimating dumping margins between 828–921%) and government subsidies for Chinese AAM exports.
Who is affected?
The AD duties apply to all Chinese exporters of AAM, regardless of their individual pricing. This includes synthetic graphite, natural graphite, and their blends with a carbon purity of at least 90%. The tariffs also cover AAM already incorporated into finished batteries — except for complete energy storage systems.
Energy storage systems (BESS) assembled and exported from China are not subject to the new AD tariff — meaning U.S. BESS integrators will be exempt, unless they import battery components containing AAM.
Impact of the Measures
Domestic AAM producers — such as Novonix’s new facility in Chattanooga, Tennessee — were highlighted as key beneficiaries of the regulatory action.
Stock prices of non-Chinese AAM producers like Syrah Resources (Australia), Nouveau Monde Graphite (Canada), Novonix (Australia/USA), and Posco Future M (South Korea) surged by 15–26% following the announcement.
The import cost of Chinese AAM rose from roughly $3,700/ton to $9,300/ton, while U.S.-produced AAM costs around $5,400/ton — making it over 40% cheaper than imported Chinese material under the new tariff regime.
What’s Next?
The decision is preliminary. Final determinations for both the AD and CVD duties are expected by December 5, 2025 — at which point the tariffs may be upheld, increased, or reduced.
This move marks a significant step toward rebuilding an independent U.S. battery production chain, reducing reliance on China, and strengthening supply chain security. However, skepticism remains regarding the ability of North American producers to scale up AAM production to meet the volume and purity standards required by the EV industry. Tesla and other battery manufacturers have expressed concern that domestic suppliers are not yet capable of delivering the necessary quality and capacity.