PET Polyester Bottle Flake Market Intelligence, Analysis, and Forecast

I. Market Intelligence
Price Trends
- Recent Price Volatility: In May 2026, bottle-grade polyester chip prices exhibited broad-range volatility. At the beginning of May (May 1–8), prices declined in tandem with falling raw material costs; on May 8, the mainstream prices for water-bottle-grade and oil-bottle-grade polyester bottle chips in the South China market stood at RMB 9,200/ton, down RMB 100/ton from prior levels. The East China market also remained in a weak adjustment phase. During mid-month (May 9–14), price divergence emerged: domestic producers’ quotations were generally reduced by RMB 50–150/ton; on May 13, most orders for May–June delivery were transacted at ex-factory prices ranging from RMB 8,800 to 9,100/ton, with localized transactions as low as RMB 8,690–8,750/ton and as high as RMB 9,130–9,150/ton. On May 14, the spot closing price for polyester bottle chips in East China was RMB 8,850/ton, down RMB 150/ton day-on-day. Export quotations continued declining: the mainstream FOB Shanghai port negotiation range from major East China producers was USD 1,190–1,235/ton, while that from key South China ports was USD 1,185–1,225/ton.
- Average Prices by Period: In Q1 2026, the quarterly average price in the East China market settled at RMB 6,964.66/ton, up 20.65% quarter-on-quarter and 11.80% year-on-year. Prices remained elevated in April; however, from May to June, amid progress in ceasefire agreements, geopolitical risk premiums receded, and supply gradually recovered—leading to downward pressure on price benchmarks. The anticipated Q2 price range is RMB 7,500–9,300/ton, with monthly average price estimates for April, May, and June at RMB 8,300/ton, RMB 8,000/ton, and RMB 7,800/ton, respectively.

Supply-Demand Dynamics
- Supply: Domestic polyester bottle chip production in May 2026 reached 330,800 tons, with an industry capacity utilization rate of 71.44%. However, constrained raw material supply—exacerbated by the closure of the Strait of Hormuz—limited output growth. The tight raw material supply situation persisted through April, and unplanned maintenance at certain facilities further restricted spot availability, providing price support. From May to June, as ceasefire progress continues and raw material supply gradually normalizes, previously idled units are expected to restart, lifting operating rates and easing supply pressure—though potential geopolitical flare-ups could still disrupt supply continuity.
- Demand: May marks the start of the peak consumption season for bottle chips. Downstream buyers may engage in urgent restocking at elevated prices or conduct concentrated purchases during dips. Export demand remains robust: China’s polyester bottle chip exports totaled 582,500 tons in March 2026—up 152,500 tons (35.45%) month-on-month. New export order volume has surpassed domestic sales, accounting for over 60% of total orders. Nevertheless, overall downstream procurement remains cautious, with sparse spot transaction inquiries and generally muted trading activity.

Cost Factors
- Raw Material Price Volatility: Since May, international crude oil prices have fluctuated sharply due to geopolitical developments, causing upstream polyester raw material prices to rise then fall—resulting in unstable cost support for bottle-grade polyester chips. As of May 13, the spot processing margin for bottle chips stood near RMB 1,634/ton, while the PR2607 futures contract-based processing margin was approximately RMB 1,063/ton.

II. Analysis and Assessment
Causes of Price Volatility
- Cost-Driven Dynamics: Geopolitical tensions have triggered wide swings in crude oil prices, subsequently affecting upstream feedstock prices (e.g., PX and PTA). This cost pass-through mechanism constitutes a primary driver behind recent PET bottle chip price fluctuations. For example, the March closure of the Strait of Hormuz disrupted maritime oil transport, spurring a sharp surge in global oil prices, which in turn lifted PX and PTA prices—and ultimately pushed bottle chip prices significantly higher.
- Supply-Demand Impact: On the supply side, constrained raw material availability limited output expansion; intermittent unplanned plant maintenance tightened spot liquidity, supporting prices. On the demand side, seasonal consumption strength and robust export demand provided supportive underpinnings—but downstream caution restrained upward price momentum.

Key Market Contradictions
- Cost vs. Demand Mismatch: While cost inputs remain highly volatile due to geopolitical uncertainty, end-user price tolerance is relatively limited. Consequently, when cost-driven rallies occur, demand response tends to lag, capping upside price potential.
- Timing Misalignment Between Supply Recovery and Demand Release: From May to June, supply-side normalization—including raw material restoration and unit restarts—is expected to alleviate pressure. However, the pace and magnitude of demand recovery remain uncertain. Should prices sustain elevated levels, downstream purchasing willingness may weaken further—hindering the rebalancing process between supply and demand.

III. Forecast
Price Trend Outlook
- Short-Term (Late May–June): With easing geopolitical tensions and gradual raw material supply restoration, PET polyester bottle chip prices are likely to continue moderating. Nonetheless, seasonal domestic demand and resilient export demand will provide underlying support, potentially narrowing price volatility.
- Medium-Term (Q3): Assuming stable geopolitical conditions, crude oil prices reverting to rational ranges, normalized supply operations, and modest demand growth, prices are expected to stabilize within a reasonable band—projected at RMB 7,500–8,500/ton.

Supply-Demand Trend Outlook
- Supply: Gradual commissioning of new capacities and completion of maintenance activities will incrementally raise output volumes, easing supply pressure. Yet, industry-wide capacity utilization may still fluctuate in response to cost dynamics and demand responsiveness.
- Demand: Continued seasonal strength and export momentum will sustain demand growth. However, downstream sectors remain highly price-sensitive; excessively rapid price increases may dampen demand. Over the longer term, expanding downstream applications and consumer upgrading trends suggest sustained growth in PET polyester bottle chip demand.