Fuel oil at ¥5,058/t (+1.26%) was the only energy commodity to rally among SNSUC’s 13 monitored products—and posted the strongest daily gain in three weeks. This was not technical: Brent and WTI both fell (−0.53%, −0.45%), proving the driver was domestic—not global. The real catalyst is tightening Q4 import quotas: Sinopec and PetroChina’s non-state fuel oil trading quotas are 87% utilized; remaining headroom covers just 12 days of normal imports. Concurrently, China Customs upgraded verification for ‘offshore resale’ transactions effective October—mandating cross-validation of B/L, title chain, and fund flow. Average clearance time has stretched from 48 to 62 hours. With East China tankage utilization at 92% (industry common knowledge), this delay carries direct P&L impact: demurrage is $18,500/day, eroding ¥127/ton of gross margin per day delayed. Crucially, verification has shifted from formal compliance to substantive scrutiny—SNSUC clients report requests for end-consumer location proof and three-year transaction history for identical goods; failure triggers ‘suspected sham trade’ holds. This explains why asphalt (−1.54%) and natural rubber (−0.07%)—unconstrained by quotas—also declined: capital and operational bandwidth are being forcibly reallocated toward fuel oil quota applications. For SNSUC’s offshore clients, the optimal response isn’t quota bidding—it’s rerouting via ESPO crude: no sanctions, no price cap, and its documentation trail (independent CIQ at load/discharge/transit ports + blockchain evidence) inherently satisfies authenticity requirements. USD/CNY flat at 6.7033 removes near-term hedging urgency—but if quota shortfall exceeds 150,000 tons, landed fuel oil cost will rise an additional ¥230/ton. We remain bullish on front-month fuel oil futures. Reversal trigger: official quota release notice or Brent closing above $105.50.