Core Viewpoint - The Shanghai Futures Exchange announced adjustments to the trading rules for fuel oil, asphalt, and crude oil futures contracts, effective from December 9, 2025, which includes changes to price fluctuation limits and margin requirements [1] Group 1: Trading Rules Adjustments - The price fluctuation limit for fuel oil and asphalt futures contracts will be adjusted to 7% [1] - The margin requirement for hedging positions will be set at 8% [1] - The margin requirement for general positions will be set at 9% [1] Group 2: Related Contracts - The price fluctuation limit for crude oil and low-sulfur fuel oil futures contracts will also be adjusted to 7% [1] - The margin requirement for hedging positions in these contracts will be 8% [1] - The margin requirement for general positions in these contracts will be 9% [1]