关注几内亚政策变动，氧化铝延续偏强

Group 1: Report Industry Investment Rating - No relevant content provided Group 2: Core Views of the Report - The news about Guinea's mines still has uncertainties, and the unstable raw material supply is expected to support the alumina price to remain strong. However, after the significant increase in the alumina price, the profit margin has recovered, and the production willingness of enterprises has increased. There may be复产 in the future, so the production changes of alumina enterprises need to be closely monitored. The short - term supply - demand situation of alumina is tight, and the price remains favorable, but the increase may be limited [2][6] Group 3: Summary by Related Catalogs Transaction Data - From May 16th to May 23rd, the alumina futures (active) rose from 2890 yuan/ton to 3169 yuan/ton, an increase of 279 yuan/ton; the domestic alumina spot rose from 2991 yuan/ton to 3220 yuan/ton, an increase of 229 yuan/ton; the spot premium decreased from 46 yuan/ton to - 6 yuan/ton, a decrease of 52 yuan/ton; the Australian alumina FOB remained at 370 US dollars/ton; the import profit and loss increased from - 338.93 yuan/ton to - 91.44 yuan/ton, an increase of 247.5 yuan/ton; the exchange warehouse inventory decreased from 197,535 tons to 156,999 tons, a decrease of 40,536 tons; the exchange factory warehouse inventory remained at 7200 tons; the prices of domestic bauxite in Shanxi, Henan, Guangxi, and Guizhou remained stable, while the Guinea CIF increased from 70 US dollars/ton to 72 US dollars/ton [3] Market Review - The main alumina futures contract rose 9.96% last week, closing at 3169 yuan/ton. The national weighted average of the spot market was reported at 3220 yuan/ton on Friday, up 229 yuan/ton from last week. The spot circulation volume of domestic bauxite is limited, and the alumina enterprises have no plan to adjust the ore purchase price this week. The price continues to run stably. For imported bauxite, the future development of the affected mining areas in Guinea is still unclear, and it is necessary to further monitor whether the subsequent development of this event will worsen the bauxite supply situation. In the short term, the price of imported bauxite is clearly supported by positive factors, and the price center may rise. On the supply side, alumina enterprises are both reducing and increasing production. Some alumina enterprises in Shanxi are reducing production, while some previously overhauled enterprises have ended their overhauls, and new northern production capacities are releasing output. The operating production capacity of alumina has slightly increased, the supply change is limited, and the spot is still in a short - term tight situation. As of May 22nd, China's alumina production capacity was 112.2 million tons, the operating production capacity was 86.35 million tons, and the operating rate was 76.96%. On the consumption side, the electrolytic aluminum production capacity in Shandong is continuing to transfer to Yunnan. In addition, the production capacity in Guangxi and Sichuan is being restored. Overall, the operating production capacity of the electrolytic aluminum industry has continued to increase this week, and the demand for alumina has slightly increased. In terms of inventory, the alumina futures warehouse receipt inventory decreased by 130,658 tons to 157,000 tons last Friday, and the factory warehouse inventory remained at 7200 tons [4] Market Outlook - Last week, the mining end in Guinea experienced a process of escalating and then easing disturbances. At the beginning of the week, the Guinea government designated multiple mining licenses as strategic reserve areas, making the resumption of production in the suspended mining areas in Guinea more uncertain. Near the weekend, there was news that the mine owners whose bauxite mining licenses were revoked in Guinea could resume production by paying the local development contribution or participating in the re - bidding. On the supply side, alumina enterprises both reduced and increased production last week. Some alumina plants in Shanxi reduced production, while some previously overhauled enterprises released output after resuming production. The theoretical operating production capacity increased slightly compared with the previous week. On the consumption side, the electrolytic aluminum production capacity was basically stable, and there was still a slight gap in the theoretical production capacity matching last week. The exchange warehouse receipt inventory continued to decrease by 130,658 tons to 157,000 tons last week, and the factory warehouse inventory remained at 7200 tons. Overall, the news about Guinea's mines still has uncertainties, and the unstable raw material supply is expected to support the alumina price to remain strong. However, after the significant increase in the alumina price, the profit margin has recovered, and the production willingness of enterprises has increased. There may be复产 in the future, so the production changes of alumina enterprises need to be closely monitored. The short - term supply - demand situation of alumina is tight, and the price remains favorable, but the increase may be limited [6] Industry News - The issue of the Guinea government revoking the mining licenses of some mines has further escalated. On the evening of Tuesday, May 20, 2025, the transitional authorities read out a decree on national television, deciding to classify multiple mining rights as strategic reserve areas, including concessions, industrial and semi - industrial mining licenses, and exploration licenses for bauxite, iron, gold, diamonds, and graphite. In the first quarter of this year, the characteristic industries in Bozhou District, Zunyi City showed new vitality. The electrolytic aluminum output exceeded 100,000 tons, and the output value of the bauxite industrial chain increased. According to the data of the National Bureau of Statistics, in April 2025, China's alumina output was 7.323 million tons, a year - on - year increase of 6.7%; the cumulative output from January to April was 29.919 million tons, a year - on - year increase of 10.7%. In April, the electrolytic aluminum output was 3.754 million tons, a year - on - year increase of 4.2%; the cumulative output from January to April was 14.793 million tons, a year - on - year increase of 3.4%. In April, the aluminum product output was 5.764 million tons, a year - on - year increase of 0.3%; the cumulative output from January to April was 21.117 million tons, a year - on - year increase of 0.9%. In April, the aluminum alloy output was 1.528 million tons, a year - on - year increase of 10.3%; the cumulative output from January to April was 5.76 million tons, a year - on - year increase of 13.7% [7] Related Charts - The report provides charts on alumina futures price trends, alumina spot prices, alumina spot premiums, alumina current - continuous one inter - period spreads, domestic bauxite prices, imported bauxite CIF, caustic soda prices, thermal coal prices, alumina cost - profit, and alumina exchange inventory [9][10][11][12]