Driven by persistent macroeconomic uncertainty and volatile global energy markets, spot prices fluctuated significantly during the week, largely following movements in upstream feedstock costs.
The average operating rate of domestic PET bottle grade plants was estimated at approximately 80.9% of total designed capacity. Producer inventories remained generally stable at around 8 days on average, although inventory levels varied slightly across different regions and manufacturers.
In East China, a 750,000-ton/year PET bottle grade unit has remained offline since early January, with no confirmed restart schedule at present. Meanwhile, a newly added 200,000-ton/year capacity is expected to commence operations between late May and mid-June.
In South China, several plants reduced operating rates due to insufficient feedstock supply, while a 350,000-ton/year unit successfully restarted in early April following an extended shutdown period.
In Northwest China, a 120,000-ton/year unit that suspended operations in late December 2025 is preparing for restart in May and has already entered the heating-up phase.
Upstream feedstocks including PX, PTA, and MEG are expected to maintain a destocking trend throughout May, with the possibility of extending into June, reflecting a comparatively balanced supply-demand structure.
Recent market volatility was mainly driven by fluctuations in crude oil prices, influenced by changing expectations surrounding U.S.-Iran negotiations and broader geopolitical developments in the Middle East.
PX prices weakened rapidly alongside declining crude oil costs, while destocking momentum slowed as additional PTA facilities entered maintenance. PTA prices also corrected in line with feedstock cost fluctuations. Although low-price replenishment demand from downstream polyester producers remained limited, ongoing maintenance turnarounds and occasional unplanned shutdowns provided some supply-side support. However, regional supply differences restricted the upside of spot processing spreads.
For MEG, downstream demand remained relatively weak as polyester polymerization and weaving operating rates continued at subdued levels. At the same time, the absence of scheduled import cargo arrivals this week may further support the continued reduction of visible port inventories in the near term.
In the short term, the PET bottle grade market is expected to remain range-bound, with pricing trends continuing to closely track fluctuations in upstream feedstock costs. Market participants are likely to maintain a cautious wait-and-see approach.
This report is compiled and summarized based on publicly available market information and industry sources for reference purposes only. Certain market information was referenced from China Chemical Fiber Information Network (CCF): CCF Market Report https://www.ccf.com.cn/newscenter/detail-130000-2026050900083.shtml