PTA
ZCE (China)
Purified terephthalic acid, the feedstock for polyester, and one of the most actively traded commodity futures on earth, all of it in China.
Purified terephthalic acid, the feedstock for polyester, and one of the most actively traded commodity futures on earth, all of it in China.
Top Producers
approximate share of world PTA capacity (indicative)
Main Uses
indicative split of PTA demand by end use
Can it be a contract?
8 of 8 tests passed
- Written grade spec: passes. A published specification a buyer will accept sight-unseen.Published grade specification
- Fungible: passes. Any lot of the grade substitutes for any other.Any lot substitutes for another
- Dispatchable: passes. Available at the cadence the buyer needs. Storage is only one route to that; generation and continuous flow are others, which is why power trades without being storable.Available on demand from stock or flow
- Delivery point: passes. A point the trade already uses can stand for the market. A contract cannot invent a delivery location; it has to adopt one the physical flows already run through. The clearest proof that a point qualifies is a liquid basis market against it: every other US gas hub quotes as a spread to Henry Hub, every ISO node settles against its hub, and grades quote as differentials to Brent. Where a point has no basis market quoting off it, it is not really the delivery point.A delivery point the trade already uses
- Observable spot price: passes. Somebody publishes or assesses a price the trade recognises.Continuously quoted
- Many on both sides: passes. Enough independent buyers and sellers that no one party sets the price.Many independent buyers and sellers
- Volatility worth hedging: passes. Prices move enough that someone needs to transfer the risk.Moves enough to need hedging
- Enforceable venue: passes. Contracts can be written and enforced where both sides trust the courts. This is separate from the delivery point and often decides it: Russia and Saudi Arabia sit on enormous, long-established physical flows and no forward settles in either, because the flow test passes and the law test does not.Enforceable in a trusted jurisdiction
Forward market: Yes
A clean pass and one of the most actively traded futures in the world by volume.
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Chain
crude to paraxylene to PTA to polyester
structural
Dominant producer
China
as of 2025
Futures venue
Zhengzhou (ZCE), 5 t/lot, yuan/tonne
as of 2026
Price
roughly 4,500 to 6,000 yuan/tonne
2024-2025
PTA, purified terephthalic acid, is a white powder that almost no consumer has heard of and yet underpins half the world's clothing. It is the key feedstock for polyester: combined with MEG it makes PET, the plastic of drink bottles and the fiber of polyester textiles. PTA itself is made by oxidizing paraxylene (PX), which is refined from oil, so the chain runs crude oil to PX to PTA to polyester, one of the longest and most-watched value chains in petrochemicals.
China overwhelmingly dominates both PTA production and consumption, because China is where the world's polyester is spun. Capacity is concentrated along the Chinese coast in enormous integrated complexes, and the dominant end use is polyester staple fiber for textiles, with PET bottle resin second. The market has lived through chronic overcapacity, which has kept PTA processing margins thin and made the spread over paraxylene a closely watched number.
The futures market is entirely Chinese: the Zhengzhou Commodity Exchange PTA contract (ticker TA), 5 tonnes a lot, quoted in yuan per tonne and physically settled, is the only PTA futures market in the world and one of the most actively traded commodity contracts anywhere by volume. Chinese PTA ran roughly 4,500 to 6,000 yuan a tonne (about 600 to 850 dollars) through 2024 and 2025.
How It Trades
| Venue | Zhengzhou Commodity Exchange (ZCE), the only PTA futures market |
| Benchmark contract | ZCE PTA future (ticker TA), launched 2006 |
| Contract size | 5 metric tonnes per lot |
| Price terms | Chinese yuan per tonne |
| Settlement | Physical delivery in China |
| Typical curve | Driven by the paraxylene cost and the chronically oversupplied polyester chain |
| Liquidity | Extremely high; one of the most actively traded commodity futures in the world by contract volume |
Supply and Demand
Top producers
- China: the overwhelming majority of world PTA capacity
- India, South Korea, and Taiwan: the next tier
- Rest of Asia and the Middle East: smaller volumes
PTA capacity tracks polyester manufacturing, which is concentrated in China.
Top consumers
- China: the dominant consumer (the world's polyester factory)
- India and Southeast Asia: growing polyester production
- Global PET bottle and packaging manufacturers
Major uses
- Polyester staple fiber and filament (textiles, the largest use)
- PET resin for bottles and packaging
- Polyester film
What Moves the Price
- Paraxylene (PX) price, the main feedstock
- Crude oil and naphtha, upstream of PX
- Chinese polyester operating rates and textile demand
- Chronic PTA overcapacity and thin processing margins
- PET bottle and packaging demand
Moments That Made the Market
2006
ZCE launches PTA futures, the first PTA contract in the world.
2010s
China builds dominant PTA and polyester capacity; the contract becomes a volume giant.
2020s
Waves of new integrated PX-PTA capacity keep margins thin and the chain oversupplied.
What Changed Since the 2010 Era
- China built the world's polyester chain and the futures market to hedge it.
- PTA became one of the highest-volume commodity futures on earth.
- Integrated PX-PTA-polyester megacomplexes compressed processing margins.