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China, South Korea, and the United States are the leading exporters of terephthalic acid, collectively accounting for over 60% of global exports in recent years; major importers include Vietnam, Mexico, and India, reflecting strong demand from regional PET resin and polyester fiber manufacturing hubs. Export volumes from China have moderated slightly since 2023 amid domestic capacity rationalization, while terephthalic acid prices have remained relatively stable despite modest upward pressure from upstream PTA feedstock costs.
Terephthalic acid (CAS 100-21-0) is a white, crystalline solid at room temperature, odorless and non-volatile, with a high melting point of approximately 300 °C (decomposes before boiling). It is an aromatic dicarboxylic acid and a key organic chemical intermediate. The vast majority of terephthalic acid is used in the production of polyethylene terephthalate (PET), a polyester resin employed in synthetic fibers, plastic bottles, and food packaging films. It is also utilized in the manufacture of other polyesters, liquid crystal polymers, and specialty resins for engineering plastics and coatings. Its primary application areas are polymer production, textile manufacturing, and beverage and food container industries.
Terephthalic acid (TPA) is a high-tonnage chemical, widely used in the production of synthetic materials, notably polyester fibers (poly-(ethylene terephthalate)).
Terephthalic acid is poorly soluble in water and alcohols, consequently up until around 1970 most crude terephthalic acid was converted to the dimethyl ester for purification. It sublimates when heated.
This chemical is included in Basic Chemicals - Acetic Acid Industry. See more about what is Terephthalic acid and Terephthalic acid SDS information.
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