On June 8, the BR market in East China weakened sharply. With international crude oil prices fluctuating within a narrow range and downstream buyers making inquiries based only on immediate needs, offer prices for BR were lowered; spot market quotes from traders dropped by approximately 300–400 RMB/tonne. Currently, quotes for major brands such as Daqing, Yangzi, and Qilu range from 14,050 to 14,300 RMB/tonne, while some private brands are quoted around 13,750–14,000 RMB/tonne.

Regarding the spot market, the East China BR market saw a significant downturn on June 8. Upstream international crude oil prices remained range-bound, and downstream purchasing was limited to immediate needs, resulting in insufficient demand support. Traders generally lowered their quotes by 300–400 RMB/tonne—with state-owned brands at 14,050–14,300 RMB/tonne and private brands at 13,750–14,000 RMB/tonne—exerting downward pressure on spot prices. In the futures market, the closing price for the dominant butadiene rubber (BR) contract (2607) on the Shanghai Futures Exchange (SHFE) was 13,875 RMB/tonne on June 5, down 440 RMB/tonne from the previous trading day. Trading volume remained high and open interest increased slightly; the short-term trend appears weak, exerting downward pressure on futures prices.

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