This chart shows Phthalic Anhydride price assessments, in US Dollar per metric ton (USD/mt), across 4 key markets from November 2024 through November 2025:
- Phthalic Anhydride, US (United States): Phthalic Anhydride, export contract price (formula), fob, United States
- Phthalic Anhydride, CN (China): Phthalic Anhydride, domestic spot price, exw, China
- Phthalic Anhydride, SEA (Southeast Asia): Phthalic Anhydride, import transaction price, cif, India
- Phthalic Anhydride, EUR (Europe): Phthalic Anhydride, export contract price (formula), fob, Northwest Europe
About Phthalic Anhydride Prices
Phthalic Anhydride Price Outlook. The price of Phthalic Anhydride (United States) was flat during November 2025. On a year-over-year basis, the prices of Phthalic Anhydride (United States) increased modestly by 2%. Meanwhile, the average price of Phthalic Anhydride (China) amounted to 830 USD per metric ton, from 964 USD per metric ton one year earlier. On a month-over-month basis, the price of Phthalic Anhydride (China) is 4% lower than the price one month before.
The price of Phthalic Anhydride (Southeast Asia) declined throughout November 2025, reaching 795 USD per metric ton. The price is 4% lower than the average price in the previous month and 18% lower than the average price one year before. In contrast, the prices of Phthalic Anhydride (Europe) increased modestly during November 2025, reaching 1,070 USD per metric ton, which means a rise of 0.9% from the previous month’s price and a decline of 10% from the previous year’s price.
About Phthalic Anhydride Pricing Data. Phthalic Anhydride prices are provided as an annual subscription where subscribers have access to reliable pricing data of 225 commodities worldwide.
Intratec's methodology employs a structured big data strategy that utilizes advanced technologies to extract publicly available data from primary sources such as governmental trade records, statistics bureaus, and international agencies.
This data is then processed through mathematical models to generate reliable assessments, published at the very beginning of each month. To better understand the data provided check Intratec Primary Commodity Prices Methodology.
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About Phthalic Anhydride
About Phthalic Anhydride. Phthalic Anhydride (a.k.a. PHTAN) is the anhydride of phthalic acid. It was the first anhydride to be used commercially. It appears as a colorless or white solid in the form of needles or platelets and it has a characteristic odor, being toxic if inhaled. When mixed with water, it forms a corrosive solution. It is mainly used to produce plasticizers.
Phthalic Anhydride Handling. Phthalic Anhydride must be stored separated from combustible substances, strong oxidants, reducing substances, strong acids, and bases. It should be stored in a cool and ventilated area out of direct sunlight and away from ignition sources and heat. Shipment of Phthalic Anhydride is made preferably in the molten form of the product. Insulated and heated tanks are used, as are insulated rail tank cars and tank trucks. Rail tank cars can hold about 84 t, and trucks about 20 t. The molten form can be handled and pumped in bulk form, and as a result, is priced lower than the solid. Solid Phthalic Anhydride is available as a flake in 1 t and 0.5 t super sacks, and 22.7 kg multiwall bags.
Phthalic Anhydride Production. Raw materials and the respective production processes employed in the manufacturing of Phthalic Anhydride are listed below.
- o-Xylene (gas-phase air oxidation),
- Naphthalene fraction (gas-phase air oxidation)
Phthalic Anhydride Uses. The uses and applications of Phthalic Anhydride may vary according to its specification. The main forms of Phthalic Anhydride are technical grade (5 to 8% moisture) and pure (99.8% minimum purity).