Aluminum prices rose by 3.37% in December
| Gamma-PGA (gamma polyglutamic acid) |
Aluminum prices rose in December. According to the Commodity Market Analysis System of Shengyi Society, as of December 31, 2025, the average price of aluminum ingots in the East China market in China was 22473.33 yuan/ton, an increase of 3.37% from the market average price of 21740 yuan/ton on December 1.
In December 2025, aluminum prices continued their upward trend from the end of October and repeatedly hit new highs for the year, with raw material alumina prices fluctuating at a low level. Currently, the profit per ton of aluminum is in a relatively good position. At present, the average profit per ton of electrolytic aluminum is between 5500-6000 yuan/ton, and the average profit per ton of raw material alumina is negative, ranging from -50 to -100 yuan.
The unsustainability of rare ‘reverse divergence’ between aluminum price and alumina
The “reverse deviation” between aluminum prices and alumina prices is essentially the result of short-term supply-demand mismatch and pricing logic differentiation. Its unsustainability stems from four core forces: the inherent law of industry chain profit rebalancing, the hard constraint of supply clearance, the long-term effectiveness of cost transmission, and the re correction of inventory and game theory. Ultimately, it will push the two to return to the normal direction or convergence.
On December 26th, the Industrial Development Department of the National Development and Reform Commission released the “Vigorously Promoting the Optimization and Upgrading of Traditional Industries”, which focuses on “strengthening management, optimizing layout, curbing blind investment, and promoting mergers and acquisitions” for resource constrained industries such as alumina. In the short term, expectations will be driven by emotions, and in the medium term, production capacity clearance and structural optimization will be accelerated, reshaping the supply pattern in the long term. The trend of “anti involution” is expected to redistribute profits in the metal industry chain.
1、 Supply side: Loss forcing production capacity to clear and repair supply-demand imbalance
The loss of cash costs triggered passive production cuts: In December 2025, the price of alumina futures fell below the cash cost line of 2400-2500 yuan/ton, causing a loss of about 50 yuan per ton in the industry. Small production capacity with high mineral and energy consumption (accounting for about 15% -20%) was the first to shut down; In the first half of 2026, it is expected to reduce production by 8-12 million tons, and the supply growth rate will decrease from 8% to 3-4%, matching the growth rate of electrolytic aluminum demand and reversing the surplus pattern.
Slowing down of new production capacity and capacity replacement: Industry losses suppress the enthusiasm for new investment, and the planned new production capacity in 2026 may be reduced from 13 million tons to within 8 million tons; At the same time, environmental protection and energy consumption constraints are becoming stricter, and the high cost production capacity in inland areas is accelerating its withdrawal. The proportion of low-cost production capacity in coastal areas is increasing, and the supply structure is optimized to support price and profit recovery.
Inventory depletion strengthens price elasticity: The high level of alumina inventory (about 1.2 million tons by the end of 2025) will gradually decline with production reduction and demand recovery. When inventory drops below 800000 tons, the tight spot market will push prices to repair above marginal costs, creating conditions for profit return.
2、 Cost side: Strengthening bottom support makes it difficult for the cost curve to decline in the long term
The cost of bauxite has bottomed out and rebounded: bauxite accounts for about 60% of the cost of alumina, and the external dependence is about 70%; Guinea’s rainy season, geopolitical disturbances, or low port inventories (<80 million tons) will drive mineral prices to rebound from $68-70/ton to $75-80/ton, raising the cost floor of alumina and limiting the room for price decline.
Rigid increase in other costs: Fluctuations in prices of auxiliary materials such as electricity and caustic soda, as well as increased investment in environmental protection, are driving up the overall cost of alumina; If the price of alumina remains below the cost line for a long time, the enterprise will be forced to shut down due to cash flow disruption, forming a hard support of cost on price.
The long-term effectiveness of cost transmission: Alumina accounts for about 35% -40% of the cost of electrolytic aluminum. In the long run, changes in the cost end will eventually affect aluminum prices through the cost transfer of electrolytic aluminum. If the cost of alumina continues to rise, it will force aluminum prices to rise or compress electrolytic aluminum profits, repairing the distribution of industry chain profits.
3、 Demand side: Stable demand for electrolytic aluminum drives demand repair for alumina
Continued tight supply and demand of electrolytic aluminum: Domestic electrolytic aluminum production capacity is constrained by the 45 million ton red line, while overseas (Europe, the United States) continues to reduce production due to high energy costs. The high demand for new energy (photovoltaics, new energy vehicles) drives the growth rate of electrolytic aluminum consumption to maintain 3% -4%, indirectly driving the demand for oxidized aluminum and alleviating the supply-demand imbalance.
The release of new overseas electrolytic aluminum production capacity: The addition of electrolytic aluminum production capacity in the Middle East, Southeast Asia, and other regions will bring new demand for over 2.4 million tons of alumina by 2026, further digesting domestic excess supply.
Expansion of demand for high-end alumina: The localization of high-purity alumina (4N+) is accelerating, with an import dependency of about 48%. With domestic technological breakthroughs and demand growth, the premium of high-end products is increasing, improving the overall profit structure of the industry.
4、 Industry chain game: profit redistribution, bargaining power rebalancing
The high profit of electrolytic aluminum forces the price increase of raw materials: the profit per ton of electrolytic aluminum reaches 5500-6000 yuan. In order to lock in the supply of raw materials, aluminum plants may accept the price increase of alumina (such as from 2500 yuan/ton to 2700-2900 yuan/ton), give up the alumina link, and repair their profits.
Optimization of Long Order Pricing Mechanism: Alumina enterprises lock in sales and prices by signing quarterly/annual long orders, reducing the risk of spot fluctuations; The increase in industry concentration (with the market share of top enterprises rising from 30% to 40%) enhances bargaining power and drives profits back to a reasonable range.
Rebalance of macro and financial attributes: Aluminum prices have strong financial attributes and are greatly affected by Fed interest rate cuts, geopolitical disturbances, etc., but they still need to anchor fundamentals in the long run; If macro easing expectations recede or demand falls, aluminum prices may come under pressure, which in turn will force alumina to reduce production capacity and drive price and profit recovery
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