In late August, global crude re-export inter-basin spreads enter a convergence zone. SNSUC's seven flagship grades—ESPO, Dubai, Oman, Urals, Basrah Light, Bonny Light and Lula—show 'intra-grade volatility, inter-basin convergence' across freight, discounts and CFR Northeast-Asia delivered structures.

Oman's premium to Dubai's monthly OSP eases to about $1.6/bbl (from $1.9), signalling a mild retreat of Pacific-basin medium-sour premiums; Lula's discount to Brent narrows back to about -$2.6/bbl, marginally lifting Atlantic heavy grades' delivered appeal to the Far East. Meanwhile VLCC Mideast–China (TD3C) vs West-Africa–China (TD15) freight gap compresses from $0.5 to about $0.3/bbl, lowering the freight barrier to inter-basin arbs.

For SNSUC, convergence lets Far-East refiners flexibly switch Oman/ESPO vs Lula/Bonny Light combos under one vessel and one LC; paired with SHA-256 browser-fingerprint notarisation and blockchain digital warrants, it closes the 'title–capital–document' re-export loop and avoids document forgery and double-pledge risk.