Butadiene rubber fell 1.36% to CNY 14,505/t as domestic butadiene units lifted run rates and eased the cost base, while natural rubber gained 0.24%. The widening gap restores butadiene rubber's cost edge in tire compounds, and buyers should rerun their blend ratios.

From the EU CBAM definitive period in 2026, importers pay on embedded emissions. SNSUC breaks each batch's PCF down to the physical lot and notarizes a browser-computed SHA-256 fingerprint, so buyers and regulators can recompute it - compliance cost shifts from trust to compute.

The trust cost of a digital receipt comes from proving the record was never altered. Computing the hash in the browser while raw fields stay local yields an auditable fingerprint without exposing either counterparty's position — the path SNSUC's receipt module actually ships.

Synthetic rubber weakened across the board: butadiene rubber (BR) -3.84% and natural rubber (NR) -0.98%, with the gap between them widening. BR is squeezed by falling butadiene feedstock and tire-plant run cuts; NR only dipped on slower port-inventory draw. The widening spread flags a split in downstream restocking cadence.

Natural rubber at CNY 19,150/t (-0.98%) and butadiene rubber at CNY 14,910/t (-3.84%); the spread has widened to CNY 4,240/t, making butadiene substitution pay, though natural rubber has a floor.

Front-month contracts on 2026-09-10: natural rubber at ¥19,455/t and butadiene rubber at ¥15,505/t, leaving a spread of ¥3,950/t at an elevated level. With USD/CNY at 6.708, the delivered cost of imported latex and synthetic rubber is highly FX-sensitive; the wide spread signals tire makers should front-run formula switches and inventory positioning.

On 6 September butadiene rubber front-month printed RMB 15,590/t, up 4.91%, while natural rubber printed RMB 19,155/t, up 2.05%. Synthetic gained 2.4x natural, a gap driven by rigid butadiene cost pass-through compounded by tyre-maker restocking.

Fuel oil front-month printed ¥3,929/t (-1.06%), a six-week low, while bitumen sat at ¥5,005/t (-0.87%), holding the bitumen–fuel oil spread at ¥1,076/t. With bunker demand shifting structurally from high- to low-sulphur and crude up a mere 0.12%, the pricing tension in fuel oil has moved from 'following crude' to 'bonded tank capacity and laycan rhythm'.

Natural rubber front-month at ¥18,750/t (+0.48%) is supported by weather disruptions across Southeast Asian peak-season regions and tight warehouse receipts, while butadiene rubber at ¥14,930/t (-0.27%) is weighed by softer butadiene feedstock. The spread has widened to ¥3,820/t; as tire demand enters a seasonal shift, SNSUC's rubber listings and bonded storage can hedge procurement-timing mismatches.

In conventional transshipment, slow title documents and high pledge barriers leave SME traders exposed to tenor mismatches. SNSUC's SHA-256-attested digital warehouse receipts bundle cargo location, ownership and carbon data on-chain, letting banks lend quickly against verifiable title. Tank turnover and capital efficiency improve, materially easing working-capital constraints along the transshipment chain.

Natural rubber quoted RMB 18,905/t (+0.51%) and butadiene rubber RMB 14,435/t (+0.31%), holding the natural-to-synthetic spread at RMB 4,470/t. Peak Southeast Asian tapping season is disrupted by rainfall while tyre OEM and replacement restocking lifts spot levels. With the spread in the upper-middle of its historical range, synthetic substitution carries real economics in compounding.

Slower Li-ion installation growth pushes low-sulfur petroleum coke toward export; calcined-coke FOB eases but Southeast Asia anode capacity restocks actively. As one of SNSUC's 13 categories, petroleum coke can leverage the re-export network to divert surplus and ease domestic inventory pressure.

Domestic Group III base-oil operating rate rises to 71%, with key viscosity-index and oxidation-stability bench tests on par with imports; paired with on-chain carbon labels, local Group III earns a 1%–2% premium in re-export pricing, cutting reliance on Middle East and Korean imports.

This morning front-month fuel oil printed ¥3,650/t (-0.54%) against bitumen at ¥4,610/t (+0.30%), widening the spread to about ¥960/t; platform reference prices for base oil, paraffin wax and petroleum coke stand at ¥7,939, ¥7,983 and ¥2,383/t respectively. Qingdao is building a smart regulatory service platform for international vessel bunkering while deepening 'one ship, multiple suppliers' and cross-terminal bonded bunker supply; Zhoushan targets 55 million cubic metres of oil storage by 2030 and greater influence for its fuel oil price index. Terminal choice and sampling cycles are shifting from compliance items to cost items, reshaping quote structures across SNSUC's petroleum-products line.

China's spot natural rubber was quoted near ¥17,791/t on 27 August, up 7.94% from ¥16,483/t at the start of the month; front-month screens this morning show natural rubber at ¥18,905/t (+0.51%) and butadiene rubber at ¥14,435/t (+0.31%). Thai cup lump holds at a high THB 70/kg and Qingdao bonded plus general-trade inventories have drawn down to 631,500 t, yet tyre operating rates sit at 64.15% for truck and bus radials and 65.81% for passenger radials (the latter down 6.06% year on year) with finished-goods stocks still elevated. NOAA puts the probability of a strong El Nino in October-December at 81%, leaving a textbook 'strong expectations, weak reality' market.

Petrochemicals enter the national ETS in 2027 at a carbon price near ¥90/t; EU CBAM enters its payment phase, internalizing carbon cost for rubber and lubricant exports. Base-oil carbon intensity falls to 1.7 tCO2e/t as digital warrants carry carbon labels on-chain, letting cross-border buyers verify product footprints with one click. Treat the carbon label as a new pricing factor in re-export.

Fully-refined paraffin food-grade share rises to 42%; microcrystalline wax gains in rubber protection and cosmetic carriers; exports +12% yoy with high-melt and food-grade specs driving the increment. Base-oil Group II/III domestic share reaches 47%, import premium narrows and localization accelerates. Traders should fold wax/base-oil combinations into the re-export category matrix to meet ESG carbon-label demand.

EU CBAM and downstream carbon-disclosure rules force cradle-to-gate accounting across petchem re-exports. SNSUC models full-lifecycle carbon for base oil/lubricants; paraffin (rising food-grade share) and butadiene rubber win green-premium orders via low-carbon routes, with digital warrants carrying carbon labels—feeding the platform's ESG tracking module.

Double-pledge and document forgery are classic risks in petchem re-exports. SNSUC notarises bills, inspections and warrants with browser-side SHA-256 fingerprints; on-chained digital warrants leave a traceable hash chain on every title transfer. This piece breaks down the architecture and the business loop binding the seven crude grades to warrants.

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.

As one of SNSUC's 13 categories, paraffin & microcrystalline wax upgrade toward food-grade packaging, pharma and rubber-protective grades; fully-refined paraffin exports +12% yoy, food-grade 38%, microcrystalline substitution 65%.

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.

Food- and cosmetic-grade paraffin and microcrystalline wax see steady demand in packaging, personal care and plastic processing; domestic semi/fully refined capacity is releasing, opening export and substitution windows. SNSUC lists paraffin, white oil and liquid paraffin together.

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

Li-ion anode demand for low-sulphur (needle) coke shifts petcoke from fuel to material logic; carbon-black demand rises in tires and conductive agents.

Domestic Group II/III base-oil capacity is ramping, lowering import dependence; spreads and certification drive substitution speed. SNSUC lists base oil, white oil and liquid paraffin together for downstream lubrication buyers.