Phthalic anhydride (PA) ranks among the most important chemical intermediates globally. It serves as the primary raw material for plasticizers, unsaturated polyester resins (UPR), and alkyd resins——cornerstone inputs for the construction, automotive, coatings, and composites industries.
At Snowhite Chemical Co., Ltd. , we focus on delivering high-quality PA with stable supply and transparent pricing. As the global PA market continues to evolve in 2026, we have compiled a fact-based analysis to help buyers navigate current conditions and make informed sourcing decisions.
What Is Phthalic Anhydride?
Phthalic anhydride (CAS No. 85-44-9) is a white crystalline solid, commonly supplied in flake or molten form. It is produced primarily through two pathways:
Ortho-xylene (OX) oxidation route: The dominant global process, relying on petroleum-derived OX. This method offers higher purity and yields.
Naphthalene oxidation route: Widely adopted in China, utilizing coal-tar naphthalene from the steel industry as a cost-competitive alternative.
Why Two Production Routes Matter
The coexistence of these two pathways creates distinct cost structures and supply dynamics. OX-based PA is more sensitive to crude oil prices, while naphthalene-based PA benefits from China’s abundant coal chemical feedstock. Buyers can leverage this bifurcation——if OX prices spike, naphthalene-based supply can offer a lower-cost alternative. Understanding the difference between these two sources is key to building a resilient procurement strategy.
Market Size: What the Data Shows
Multiple research sources report varying figures depending on scope. According to Research and Markets, 2026 global PA volume is estimated at approximately 4.61 million tons, up from 4.5 million tons in 2025. In value terms, 360iResearch placed the 2025 market at USD 1.71 billion, while Fortune Business Insights reported USD 5.38 billion. The same source projects the market to reach USD 7.31 billion by 2034, representing a compound annual growth rate of roughly 3.5%. Global production capacity stands at about 5.5 million tons, according to Prof Research.
The discrepancy across value estimates reflects differences in scope——some reports cover PA as a pure commodity chemical, while others include derivative products. Volume-based estimates (4.5–4.6 million tons) provide a more reliable benchmark for capacity planning and procurement forecasting.
China accounted for an estimated 50%+ of global PA production in 2024, with total domestic capacity exceeding 3.3 million tons. Chinese producers operate both OX and naphthalene routes, with OX capacity at approximately 1.63 million tons and naphthalene capacity at roughly 770,000 tons (as of 2025). Additional capacity continues to come online.
Regional Dynamics: Asia Pacific Dominates
The Asia-Pacific region held approximately 53.53% of the global phthalic anhydride market in 2025, reflecting rising PVC consumption for construction and infrastructure across China, Indonesia, and Vietnam.
China: The Production Hub
China exported roughly 131,000 tons of PA in 2024. Bilateral trade remains strong across Asia, with the top export markets including the UAE, Turkey, Vietnam, and Malaysia. Total exports for 2024 reached 137,000 tons, confirming China as the critical supply base for regional PA demand.
Feedstock and Price Dynamics
PA prices are heavily influenced by feedstock costs——primarily for OX-based product. In January 2025, prices started around 6,600 RMB/ton. By December 2025, they had declined to approximately 5,967 RMB/ton due to weak downstream demand and falling OX costs. Late April 2026 saw a significant rebound to 8,850–9,400 RMB/ton, driven by a supply-demand imbalance. By early May 2026, prices stabilized at roughly 8,875–8,950 RMB/ton.
It should be noted that OX-based PA commanded higher quotes (9,100–9,400 RMB/ton) versus naphthalene-based PA (8,100–8,400 RMB/ton) as of mid-April due to purity and process differences.
Key Downstream Drivers
Plasticizers remain the primary demand driver for PA, accounting for over 60% of consumption. The following sections outline other major downstream sectors.
Wind Energy and UPR Demand
Wind-energy installations increased sharply in 2024–2025, boosting demand for unsaturated polyester resins (UPR) used in glass-fiber blades. Offshore projects continue to favor PA-based resin systems due to proven fatigue resistance.
Industrial Coatings
Expanding industrial activity across automotive, machinery, marine, and infrastructure sectors has increased demand for alkyd resin-based coatings, where PA is a core raw material. Industrial-grade coating consumption is rising across emerging economies.
What Buyers Should Look For in a PA Supplier
Feedstock flexibility. Suppliers offering both OX-based and naphthalene-based PA provide greater supply security when one feedstock is constrained.
Supply stability. Check actual production capacity, inventory management capabilities, and track record of fulfilling large-volume orders.
Pricing transparency. Reputable suppliers openly discuss current price benchmarks and the market factors behind their quotes, enabling better procurement budgeting.
Logistics capability. Confirm packaging options (molten vs. flake), shipping routes, export documentation experience, and typical lead times.
At Snowhite Chemical Co., Ltd. , we offer these capabilities across all major export markets:
• Quality assurance consistent with international specifications
• Competitive pricing from China‘s integrated production ecosystem
• Reliable supply backed by robust inventory management
• Responsive support with tailored logistics
Why Snowhite Chemical Co., Ltd.?
Based in China’s chemical industry hub, we maintain real-time visibility into domestic and global PA market dynamics. Our team provides timely market intelligence and pricing insights to help buyers navigate price fluctuations.
Our PA products meet high purity standards suitable for demanding downstream applications, from plasticizers to polyester resins. With established logistics networks and export experience, we ensure timely delivery regardless of shipping method——whether molten product by truck or flake product by container.
We view sourcing as a partnership. Stable, reliable raw material supply is essential to your manufacturing success, and we are committed to being a partner you can trust.
Secure Your PA Supply
If you are sourcing phthalic anhydride for plasticizers, unsaturated polyester resins, coatings, or other applications, Snowhite Chemical Co., Ltd. is ready to support your procurement needs. Contact us for:
• A current price quote based on real-time market conditions
• Product specifications and quality certifications
• Volume-based pricing and flexible payment terms
• Sample arrangement for quality testing
Contact Us
Contact SNOWHITE CHEMICAL CO., LTD now to get COA, free samples and the latest quotation.
Email: shirley@snowhitechem.com
Phone: +86-25-56215758
WhatsApp：+86-13776524331
