Import quota enforcement has entered substantive verification phase. JODI data shows China’s August crude imports at 8,956 kb/d versus refinery throughput of 13,247 kb/d — imports cover only 67.6% of processing needs, with the gap persistently filled by bonded inventory and transshipment volumes. Yet fuel oil futures surged +1.56% to ¥4,350/t while asphalt fell −0.97% to ¥4,511/t — signaling a structural shift: low-sulfur fuel oil under quota is being routed into bonded warehouse receipts rather than cleared through customs, a behavioral response to rising authenticity verification pressure. Singapore’s August crude imports stand at 715 kb/d (JODI), and China’s three-document compliance requirement for ESPO, Urals and five other transshipped crudes remains unchanged — requiring simultaneous on-chain registration of bill of lading, warehouse receipt, and commercial invoice. Blockchain traceability service usage rose +12% day-on-day (SNSUC platform internal monitoring). USD/CNY inshore rose to 6.6726 (+0.04%), superficially lowering import costs, but this benefit is offset by rigid documentation compliance cost: average Urals transshipment deal now incurs +1.8 working days of review time, adding ~¥23/t in capital occupancy cost. Brent−WTI spread narrowed to $7.15/bbl (97.96−90.81), down another $0.40 from prior day — compressing arbitrage incentive and dampening non-quota resource inflow. Japan’s August fuel oil inventory is just 6,327 kb; Korea’s is 7,852 kb — fuel oil accounts for <7% of total refined product stocks in both countries, confirming real regional restocking demand. But quota allocation timing constrains flow, pushing traders to move title transfer from ‘arrival’ to ‘post-loading on-chain registration’. For SNSUC clients, optimal action is not quota-hunting — it’s locking in offshore fuel oil price + bundled blockchain attestation, fixing verification cost upfront. If Brent−WTI spread falls below $6.80/bbl or USD/CNY breaks 6.65, quota-based premium vanishes entirely — leaving verification cost as sole pricing anchor.