Polystyrene Market in US Eases in August with Gradual Decline Expected Late 2025

Polystyrene Market in US Eases in August with Gradual Decline Expected Late 2025

Meyer Berger 06-Sep-2025

In August 2025, Polystyrene prices for both General Purpose Polystyrene (GPPS) and High Impact Polystyrene (HIPS) averaged about 3.2% lower than in July 2025. This decline was the result of an adjustment that took place at the end of July. Throughout August, weekly Polystyrene prices remained unchanged, indicating a period of stability after the earlier drop.

Key Highlights

  • The US Polystyrene market for GPPS and HIPS grades recorded a month on month decrease of around x.xx in August?xxxx compared with July xxxx.
  • Packaging demand for Polystyrene stayed steady, supported by consistent orders from food service industry, while demand from the construction sector was lower.
  • Demand from the automotive and consumer goods sectors showed mixed results in line with broader manufacturing activity.
  • Weekly data confirmed that Polystyrene prices did not change during August. The month on month decline reflected a lower average price compared with July, rather than any week to week movement.

Diving Deep into ChemAnalyst’s Quantitative Analysis

ChemAnalyst’s quantitative review confirms that both GPPS and HIPS grades of Polystyrene fell by about x.xx in August?xxxx compared with July xxxx. As shown in the accompanying weekly Polystyrene price graph, prices for both grades stayed the same in all four weeks of August, following the late July...

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Polystyrene

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