Fuel oil fell 2.04% on 6 September while bitumen held; by the 8th fuel oil rose 4.97% to RMB 3,988/t and bitumen 4.38% to RMB 5,002/t, both at new highs. Across three sessions the two curves moved from divergence to resonance, indicating the 6th was a sentiment-driven pullback and heavy-product demand has repaired.