American PE rides out the tariff storm

What began as a seemingly self-inflicted wound for the US polyethylene (PE) industry has evolved into a calculated demonstration of global resilience. As the world’s largest PE exporter—thanks in part to its abundant ethane feedstock—US producers found themselves in a precarious position when reciprocal tariff threats emerged from both China and the EU, two of its largest export markets.

Initial impact: A major blow to US PE

At the outset, the impact looked potentially devastating. In 2024, China accounted for 17% of US PE exports, followed by the EU at 15%, and Canada at 7%. With nearly half of US PE exports at risk, producers braced for a storm that could not only shrink margins but also trigger global price wars as surplus material flooded secondary markets such as Southeast Asia, India, Turkey, and other emerging regions.

China’s growing self-sufficiency would cushion possible disruption from US

Despite China’s ambitions to become more self-sufficient in polymers, the country continues to rely on PE imports. However, China has diversified its upstream feedstock sources and expanded its domestic PE capacity. By early 2025, the country had already added 1.8 million tons of new PE capacity, with another 4 million tons expected by year-end.

These developments came as US exports to China reached around 2.5 million tons in 2024—volumes that were more than three times of 2018, when the first trade war took place. In case of losing the US as a PE supplier, China, therefore, would have faced a lesser risk thanks to its growing domestic supplies and possible redirection or replacement, potentially by Middle Eastern or Russian cargoes.

EU market was at the risk of losing a key supplier

Europe presented a more complex picture. The US had become a cornerstone of the European PE import market, holding a 36% share in 2024—a 20% increase from the previous year. For mLLDPE, US suppliers commanded over 60% of imports. US-origin LLDPE and LDPE also saw significant gains, with 20% and 36% shares respectively. A sudden withdrawal of US cargoes would have left a supply gap, increased costs, and hurt downstream competitiveness for European manufacturers already burdened by high energy costs.

Early signs of exemption from both sides emerged during April

By mid-April, market chatter suggested the EU would exclude key US PE grades -LLDPE, mLLDPE- from its list of retaliatory tariffs. Meanwhile, in China, speculation emerged about a similar move. It was around the end of April, an unofficial list also started to circulate in Chinese markets referring possible exemptions for PE grades based on HS codes, including LDPE (39011000), HDPE (39012000), LLDPE (39014020), and other ethylene polymers (39019090).

May brings clarity: Not only LLDPE, but all major PE grades spared

By early May, the European Commission released a proposed list of US goods which could be subject to possible commercial policy measures. Notably, LLDPE, mLLDPE, LDPE, and HDPE were not on the list. This indicated that not only LLDPE, but all major US PE grades could remain exempt from EU retaliatory measures.

In China, similar discussions continued, and while not yet officially confirmed, the industry widely expected exemptions to extend from LLDPE to possibly other PE categories.

Outlook: US PE finds its footing again

While formal agreements remain pending under the 90-day truce framework, US PE exports appear to have effectively weathered the worst of the tariff threats. By staying competitive on cost and proving indispensable to downstream industries in both Europe and China, US producers have managed to maintain critical trade flows. Exemptions—whether officially confirmed or de facto implemented—have allowed markets to avoid major disruptions, price surges, or urgent shifts in sourcing strategies.

As a result, American PE appears to have ridden out the tariff storm—not because the storm passed, but because the global supply chain couldn’t afford to shut the door on it.