Following the 8-day Double Festival holiday, SMM monitored the changes in China's aluminum ingot and aluminum billet inventories before and after the National Day holiday. In 2025, the domestic aluminum ingot inventory increased by a total of 57,000 mt, a rise of 9.6%, while the aluminum billet inventory increased by 24,000 mt, up 20.9%. The combined inventory of aluminum ingots and billets accumulated by 81,000 mt, an increase of 11.5%. The inventory buildup was generally in line with pre-holiday expectations, with no significant surprises. In early October, the domestic primary aluminum industry chain inventory exhibited the core characteristics of "controllable total volume and regional divergence," with specific analysis as follows...