Soda ash: Trading

China's futures contract versus Western term deals

China's futures contract versus Western term deals What this tab covers How and where it is bought and sold: who buys and sells, exchanges and benchmarks, contract types, the big trading houses and how prices are discovered.

No futures contract trades in the West. China's Zhengzhou Commodity Exchange lists a soda ash futures contract, which gives a visible domestic price. Elsewhere, soda ash is sold under annual or multi-year contracts to glassmakers and chemical companies, with prices assessed by agencies such as ICIS and Argus. Freight is a large part of delivered cost, so producers compete on logistics as well as price. The industry is consolidating; in March 2025 a major producer acquired a leading Wyoming company with two trona mines.

Where it is bought (buyers)

Glassmakers in Asia, Latin America and Europe buy on annual contracts
Detergent and chemical makers in India and Southeast Asia
Lithium refiners in Chile and China
Top importers by value in 2024: Mexico (8.2%), Brazil (7.4%), Chile (6.3%), Malaysia, China and Indonesia (5% each)

Where it is sold (sellers)

US natural producers from Wyoming via West Coast and Gulf ports
Turkey (WE Soda, Sisecam) to Europe, Asia and Africa
China in surplus years
Bulgaria (7.6% of 2024 export value) and Bosnia and Herzegovina (2.9%) into Europe

Exchanges and benchmarks

Venue	Contract	Notes
Zhengzhou Commodity Exchange (ZCE)	Soda ash futures (dense soda ash), yuan per tonne	China's domestic benchmark; no MCX or NCDEX contract

Contract types

Annual or multi-year supply contracts with glassmakers
Spot and quarterly contracts in Asia linked to Chinese prices
Domestic Indian sales at list prices, affected by the MIP

Top trading houses

Producers' own export arms
Chemical distributors and traders in Asia

How prices are discovered

ZCE futures
Assessments by ICIS, Argus and Chinese agencies such as SunSirs
US unit values (USGS)
Indian market prices reported by industry portals