China, SE Asia PE outlook for 2026: Relentlessly weak demand and non-stop new capacity waves curb recovery hopes

As 2026 approaches, major PE markets across Asia remain firmly under the grip of structural oversupply, fading demand, and persistent macroeconomic headwinds. The second half of 2025 brought little relief, with aggressive US-origin cargoes flooding China once bilateral tensions eased, amplifying downward pressure that was already entrenched due to China’s ongoing capacity surge.

Despite prices falling to multi-year lows and margins staying tight for many producers, the market shows few signs of establishing a sustainable floor. Entering 2026, players widely agree that any upward attempts will be short-lived, capped by abundant supply and fragile downstream consumption.

2025 key price movements: HD, LLDPE hit pandemic lows, LDPE at 2-year lows

China’s and Southeast Asia’s import HDPE, LLDPE, and LDPE film markets peaked in March 2025 before slipping into a prolonged downtrend for the remainder of the year. Periodic attempts at recovery were swiftly extinguished by persistent oversupply and weak buying appetite. By December, HDPE and LLDPE had fallen to their lowest levels in more than five years, while LDPE hit a two-year low despite maintaining a premium over other grades.

Once the US and China reached partial agreements that eased trade tensions, aggressive US-origin PE returned in large volumes—particularly in late Q3 and Q4—reinforcing the downtrend and intensifying competition among suppliers.

Why 2025 was dominated by bears

One of the most decisive factors behind the market weakness was the return of aggressively priced US cargoes to China. After months of heightened geopolitical friction, a thaw in US-China tensions opened the door for a renewed influx of American PE. From late Q3 through nearly all of Q4, competitively priced US material flowed into China at a pace that caught many market players off-guard, reinforcing the downtrend and intensifying competition for Middle Eastern and Asian suppliers alike. For many producers, the surge in US cargoes became the final blow in a year already marked by margin erosion and operational strain.

Yet, despite multi-year lows—especially for HDPE and LLDPE film—few players believe the market is near a sustainable bottom. Comparisons to the pandemic-era troughs surfaced as prices dipped to 2020’s levels, but some players quickly dismissed the parallel.

The post-pandemic boom was fueled by financial stimulus, supply chain paralysis, and months-long pent-up demand—none of which describe today’s environment. Instead, the current landscape is defined by a structural surplus, subdued consumption, tightening financial policies, and a wave of new capacity across Asia, especially in China. In other words, the conditions that once propelled a sharp V-shaped rebound simply do not exist today.

2026 outlook: New capacity waves keep pressure intact

Looking ahead to 2026, a challenging landscape continues to take shape. According to ChemOrbis Supply Wizard, China added around 6 million tons/year of new PE capacity in 2025—an exceptional surge whose impact the market is still absorbing. The country plans to bring another 3.2 million tons/year online in 2026 and an even more dramatic 8 million tons/year in 2027. Even though China has introduced a policy to retire petrochemical plants at the age of 20 instead of 30, the effectiveness of this initiative remains uncertain. Even in the most optimistic implementation scenario, the volumes retired would remain marginal relative to the enormous new capacities entering the system.

US-origin flows still a critical wildcard

This looming supply wave is not the only pressure point. The flow of US-origin PE remains a critical variable for 2026. Should the current calm in US-China relations continue, China is likely to remain a comfortable landing ground for American cargoes next year. This would offer mild relief to Southeast Asian markets by tempering the intensity of US competition there. Yet, several developments could counteract this potential relief—most notably the upcoming elimination of import duties on US PE in Malaysia. Once in effect, this agreement may open Southeast Asia’s doors more widely to American resin, especially if similar arrangements are extended to other countries in the region. Such moves could tighten the competitive squeeze on Middle Eastern suppliers and reinforce US presence across Asia.

Seasonal dynamics in early 2026: Short-lived strength, then lull

Entering early 2026, seasonal dynamics may create temporary room for a mild rebound. The approach of the Lunar New Year typically supports short-term stocking, and suppliers often attempt price hikes in January as they defend margins after a long year of cuts. A modest upward adjustment is plausible, supported by holiday-driven demand and producers’ attempts to lift offers. However, the sustainability of any early-year firming will be capped by the same structural forces that dominated 2025: high inventories, ongoing global oversupply, and fragile downstream demand.

February is expected to bring a familiar Lunar New Year slowdown. Reduced operating rates, short purchasing cycles, and thin spot trading—particularly in China and Vietnam—will likely keep the market quiet and range-bound. Post-holiday sentiment in March may improve as converters resume operations, but any recovery is likely to be modest due to persistent oversupply, swollen inventories, and increasingly competitive global trade dynamics.

Energy markets: Cost support remains fragile

Energy markets also offer mixed signals for 2026. While some agencies have lifted their oil and gas forecasts slightly, overall expectations remain subdued, with several major institutions predicting lower crude prices due to continued supply growth. This implies cost support for PE producers will remain fragile, limiting any cost-driven price recovery in the resin markets.

A long road back to balance

As 2026 begins, the question is not whether the market will improve—but how much improvement is realistically possible within the constraints of a structurally oversupplied global system. The consensus across China and Southeast Asia points to the same conclusion: short-lived rebounds are possible, particularly around seasonal demand cycles, but a sustained uptrend remains unlikely. The combination of massive new capacities, shifting trade flows, cautious buyers and a still-tepid global economy suggests that the path to balance will remain long and uneven.