Butadiene rubber front-month contract fell 3.24% to ¥14,490/ton—the lowest since Aug 22—as downstream tire makers delay restocking, pushing inventory pressure upstream.

Bitumen front-month rose 1.53% to CNY 5294/t on infrastructure demand; natural rubber fell 1.73% to CNY 18,720/t, while butadiene rubber plunged 3.24%, signaling intensified synthetic substitution pressure.

Natural rubber fell 2.40% to CNY 18,875/t; butadiene rubber plunged 3.81% to CNY 14,915/t—the steepest single-day drop this year. Tire factory operating rates remain below 65%, with weak restocking appetite.

Butadiene rubber futures closed at ¥14,910/t, down 3.84%—the largest daily decline this month; falling natural rubber prices widen substitution opportunities for buyers.

Butadiene rubber front-month hit CNY 14,910/t (-3.84%), lowest in 3 weeks. Falling butadiene feedstock prices and autumn maintenance at tire plants have dampened downstream buying and squeezed midstream margins.

Butadiene rubber front-month contract closed at CNY 14,910/t, down 3.84%—its steepest one-day drop in three months. Natural rubber fell 0.98% to CNY 19,150/t amid weak tire demand and cautious procurement.

Butadiene rubber front-month contract rose 4.00% to ¥15,455/ton — the strongest daily gain in three weeks — amid tightening butadiene supply and restocking by tire makers.

Butadiene rubber front month contract surged to 15590 CNY/t, up 4.91% from the previous session. Strong demand for synthetic rubber in the market.

Synthetic rubber front month contract reached 13613 CNY/t, driven by sustained market demand.

Among SNSUC's 13 categories, synthetic rubber (BR / SBR / NR) stays balanced: BR operating rate 64%, NR/BR ratio 1.29x, tire exports +7% yoy; SHA-256 fingerprints and digital warrants lift title credit.

Butadiene Rubber (BR) and Styrene-Butadiene Rubber (SBR) are driven by butadiene cost and the NR price ratio; the synthetic/natural blend in tyre recipes swings with the spread. SNSUC lists NR and SR together for price comparison.

Lubricant competition is shifting from base-oil resources to additive formulations; grease and synthetic-rubber demand upgrades push local formulation capability.