What specific antidumping duty rate did Braskem challenge, and what rate does it demand instead for US polyethylene?

Braskem challenged Brazil’s definitive antidumping duty of $199.04/tonne on US polyethylene, which was set by Gecex in March and matched the earlier provisional duty level; it demands instead a revised duty of $456.10/tonne — the rate recommended by the MDIC’s technical body (DECOM) — arguing that the lower imposed rate contradicts the investigation’s findings and violates Brazilian trade law.

Why does Braskem argue that the current fixed-dollar antidumping duty is ineffective, and what alternative does it propose?

Braskem argues that the fixed-dollar duty of $199.04/tonne becomes increasingly ineffective as US PE import prices rise sharply, since the duty represents a shrinking share of the total import cost; to maintain protective effect, its lawyers propose switching from a fixed amount per tonne to an ad valorem (percentage-based) duty.

Braskem Challenges Brazil’s Antidumping Duty on US Polyethylene, Seeks Nearly Double Rate

Apr 30, 2026

Braskem filed a legal petition to raise antidumping duties on US polyethylene to $456.10/tonne, claiming current rates fail to protect domestic industry amidst shifting feedstock costs and confirmed dumping margins.

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