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Cost Support from the Naphthalene Route Collapses; Phthalic Anhydride Market Plunges

Published on 2026-09-23
  1. Daily Summary

① The decline in feedstock industrial naphtha prices has widened, causing the cost-side support for phthalic anhydride (PA) produced via the naphtha process to collapse.

② Today, the domestic capacity utilization rate for PA dropped to 56%.

  1. Spot Market Overview

Table 1: Summary of Domestic Phthalic Anhydride Prices (Unit: RMB/ton)

Market Process Previous Trading Day Current Trading Day Change % Change
Jiangsu Ortho-xylene process 10,000 9,900 -100 -1%
Jiangsu Naphtha process 9,200 8,800 -400 -4.4%
Guangdong Ortho-xylene process 9,650 9,600 -50 -0.5%
Guangdong Naphtha process 9,350 9,100 -250 -2.7%
Hebei Ortho-xylene process 9,800 9,800 0 0
Hebei Naphtha process 9,000 8,600 -400 -4.4%
Key Downstream Product
Jiangsu DOP 10,300 10,200 -100 -1%
Data Source: Chempricehub Information

Taking the Jiangsu region as a benchmark, today's closing price for ortho-xylene process PA was 9,900 RMB/ton, down 100 RMB/ton from the previous trading day, consistent with morning expectations. Domestic PA market prices fell rapidly today. Tender prices for feedstock industrial naphtha plunged significantly, leading to a collapse in cost-side support for naphtha-process PA. Consequently, market prices for naphtha-process PA dropped sharply, exacerbating wait-and-see sentiment in the market.

  1. Production Dynamics

Today, the domestic capacity utilization rate for PA declined to 56%, driven by maintenance shutdowns at units operated by Zhongshan Liancheng, Shandong Hongxin, and Henan Qirui, which reduced overall industry operating rates. Regarding profitability, feedstock ortho-xylene prices fell, and East China market prices for ortho-xylene process PA declined, resulting in theoretical profits of 238 RMB/ton for the ortho-xylene process sector. Meanwhile, Hebei naphtha-process PA prices fell alongside declining tender prices for feedstock industrial naphtha, leading to theoretical losses of 210 RMB/ton for the naphtha-process sector.

  1. Price Forecast

Currently, cost-side support for naphtha-process PA has collapsed due to falling feedstock prices. Additionally, terminal demand is weakening, compounded by early inventory clearance by PA producers ahead of holidays, further intensifying wait-and-see sentiment. Short-term domestic PA market prices are expected to continue trending downward.

  1. Related Products

Ortho-Xylene Market: In East China, ortho-xylene prices fell, with self-pickup quotes around 9,750 RMB/ton. Increasing pressure from downstream demand weighed on the market, causing the price center to drift slightly lower.

DOP (Dioctyl Phthalate) Market: Raw material costs declined, and DOP market prices followed suit. Suppliers faced pressure to reduce inventory, while buyers remained cautious, leading to sluggish transaction activity.

Comments

0
  • Marcus Hayes 2026-09-23 20:11
    With naphtha feedstock costs collapsing, PA margins for that route are deeply negative. The 56% capacity utilization signals weak downstream demand and maintenance pressures. I expect continued price volatility as produc..
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