Styrene Butadiene Rubber in China Up 5.4% at USD 2,311/tonne

Styrene butadiene rubber prices in China reached USD 2,311/tonne as of 2026-09-04, up 5.4% from USD 2,193/tonne on 2026-08-28. The monthly change stands at +16.4% from USD 1,985/tonne on 2026-08-05, the quarter change at +8.3% from USD 2,133/tonne on 2026-06-05, and the year change at +32.0% from USD 1,751/tonne on 2025-09-04. Over the past 52 weeks the price peaked at USD 2,647/tonne on 2026-04-07 and touched a low of USD 1,489/tonne on 2025-11-06.

Claight market monitoring shows that Middle East conflict risks drove up international crude oil and upstream butadiene costs, supporting higher SBR prices. Sinopec cumulatively increased SBR ex-factory prices by 1,200 RMB/ton in July, followed by an 800 RMB/ton increase by August 18.

Supply tightened in late August and early September. According to Claight market monitoring, Shenhua Chemical cut its SBR facility operating rate to 60% on August 24, with a full maintenance shutdown scheduled for September 2, while Zhejiang Weitai Rubber shut down its 100,000-ton/year SBR unit due to a typhoon on August 27 and resumed feedstock input on August 31.

Claight market monitoring shows traders in the Jiangsu-Zhejiang region increased SBR offers by 200-300 RMB/tonne on September 1, citing cost support from crude oil trends.