几内亚矿石扰动加剧，氧化铝期价反弹

1. Report Industry Investment Rating - The investment rating for the alumina industry is "oscillation" [1] 2. Core View of the Report - Guinea's ore disturbances have intensified, leading to a rebound in alumina futures prices. The supply of domestic ore remains tight, and the issue of Guinea's government revoking some mining licenses has further escalated, increasing concerns about long - term ore supply. The spot price of alumina has risen, with increased market trading volume. The static supply - demand imbalance has improved, and the inventory has started to decline. The cost side has shown obvious loosening, and the subsequent focus is on the progress of Guinea's ore disturbances [1][12][14] 3. Summary by Relevant Catalogs 3.1 Alumina Industry Chain Weekly Overview - Raw Materials: Domestic ore prices were temporarily stable last week. Due to safety, environmental protection, resource integration, and grade decline, the overall supply of domestic ore was tight. The import market was in a stalemate, and the problem of Guinea revoking mining licenses escalated, involving an annual production capacity of about 40 million tons. The newly arrived ore was 4.099 million tons, including 3.242 million tons from Guinea and 0.805 million tons from Australia. The shipping freight from Guinea to China decreased slightly to $19 per ton [11] - Alumina: The spot price of alumina rose last week. The trading atmosphere in the market continued to heat up, and the demand from traders and some downstream increased. The export window of Chinese alumina remained closed. The national alumina operating capacity fluctuated slightly, with a construction capacity of 110.82 million tons, an operating capacity of 86.85 million tons, and an operating rate of 78.4% [12] - Demand: There was no change in domestic and overseas demand. The domestic electrolytic aluminum operating capacity was 43.923 million tons, and the overseas electrolytic aluminum operating capacity was 29.408 million tons, both remaining unchanged week - on - week [13] - Inventory: As of May 15th, the national alumina inventory was 3.246 million tons, a decrease of 42,000 tons from last week. The alumina inventory of some electrolytic aluminum enterprises continued to decline, while the inventory of alumina enterprises fluctuated slightly. The in - transit and shipped alumina increased, and the port export volume increased [13] - Warehouse Receipts: The registered warehouse receipts of alumina on the Shanghai Futures Exchange were 204,735 tons, a decrease of 45,028 tons from last week. The previous large surplus had been significantly alleviated, and the supply shortage in the short - term led to inventory reduction [14] 3.2 Weekly Key Event News Summary in the Industry Chain - In Shanxi, 0.3 million tons of alumina were traded at an ex - factory price of 3,000 yuan per ton on May 14th [15] - In Guangxi, 0.2 million tons of alumina were traded at a price of 3,050 yuan per ton [15] - In Henan, 0.2 million tons of alumina were traded at an ex - factory price of 3,100 yuan per ton on May 15th [15] 3.3 Key Data Monitoring of the Upstream and Downstream of the Industry Chain - Raw Materials and Cost Side: The data includes domestic and imported bauxite prices, domestic bauxite port inventory, shipping volume from major bauxite - importing countries, sea - floating inventory, domestic caustic soda and thermal coal price trends, and alumina production costs in various provinces [16][19][22][25][27][29] - Alumina Price and Supply - Demand Balance: It covers domestic and imported alumina prices, domestic electrolytic aluminum spot prices, the futures price ratio of electrolytic aluminum to alumina on the Shanghai Futures Exchange, and the weekly supply - demand balance of domestic alumina [34] - Alumina Inventory and Warehouse Receipts: The data involves the alumina inventory of electrolytic aluminum plants and alumina plants, domestic alumina yard/station/in - transit inventory, port inventory, total social inventory, and the warehouse receipt volume and holding volume of alumina on the Shanghai Futures Exchange [41][44][46][48]