Americas top stories: weekly summary

HOUSTON (ICIS)–Here are the top stories from ICIS News from the week ended 30 May.

Brazil’s PE market assumes ADDs on US, Canada material to be imposed from June
Brazil’s polyethylene (PE) sellers this week are encouraging customers to bring forward purchases on the assumption that the government is to impose antidumping duties (ADDs) on US and Canadian material from June.

US ethylene market braces for supply ramp-up as demand stays unsettled
After a heavy turnaround season that began in January, the US ethylene market is preparing for a wave of fresh output that threatens to tip the sector back into oversupply as demand continues to face economic and trade policy headwinds.

Brazil postpones decision on US-Canada PE antidumping duties
Brazil’s foreign trade committee Gecex has postponed a meeting where it was expected to decide on imposing antidumping duties (ADDs) polyethylene (PE) imports from the US and Canada.

UPDATE: US trade court rules against Trump’s emergency tariffs on global goods
A US court ruled on Wednesday that the president cannot impose global tariffs under an emergency act, voiding all but the sectoral ones that the nation imposed against nearly every country in the world.

INSIGHT: Court ruling to remove nearly all US chem tariffs imposed in 2025
A court ruling will leave the US some room to impose tariffs on imports of plastics and chemicals, but if it remains in place, it will eliminate virtually all the duties that the country imposed on those materials – opening the way for other countries to lift their retaliatory tariffs imposed on the nation’s substantial exports of petrochemicals.

Appeals court allows US to maintain chem tariffs
The US can maintain nearly all the plastic and chemical tariffs it imposed this year after an appeals court granted on Thursday the government’s request to stay the judgment of a lower court.

Tricon Energy emphasizes ability to pivot quickly in face of tariff volatility – CEO
In an increasingly volatile and uncertain world with a constantly changing US tariff regime throwing fuel on the fire, agility to adjust and pivot is more important than ever for a global chemical distributor, said the CEO of US-based Tricon Energy.