Group 1: Report Industry Investment Rating - No relevant content Group 2: Core Viewpoints of the Report - No relevant content Group 3: Summaries Based on Related Catalogs 1. Basis and Spread - On December 3, the Shandong basis (+80) (Hongrun) was 78, down 36 from the previous day; the East China basis (Zhenjiang Warehouse) was 88, down 46; the South China basis (Foshan Warehouse) was 18, down 46 [3]. - The 12 - 01 spread was -25 with no change; the 12 - 03 spread was -52; the 01 - 02 spread was -9, down 4 [3]. 2. Futures Contracts - The BU main - contract (01) price on December 3 was 2952, up 36. The trading volume was 510923, up 67578 (13% increase), and the open interest was 442532, down 32101 [3]. - The contract size remained at 4690 [3]. 3. Spot Market - On December 3, Brent crude oil was at 62.5, down 0.7. The prices of Jingbo, Zhenjiang Warehouse, and Foshan Warehouse decreased by 10, while Hongrun's price remained unchanged [3]. 4. Profits - On December 3, the asphalt - Ma Rui profit was 163, up 25, and the Ma Rui - type refinery comprehensive profit was 776, up 21 [3].