SMM News, March 31， In Q1 2026, amid macro tailwinds, expectations of a supply gap, and successive geopolitical conflicts in the Middle East, aluminum prices repeatedly hit new highs. The quarterly average SMM A00 aluminum price reached 24,028 yuan/mt, up 17.5% YoY; the quarterly average closing price of the LME aluminum 3M contract at 15:00 Beijing time reached $3,196/mt, up 21.8% YoY. High prices suppressed downstream consumption: At the end of 2025, SMM expected China’s primary aluminum consumption growth in 2026 to be 2.0%; as of February, that growth rate had fallen to 1.1%. As a result, the proportion of liquid aluminum in the aluminum industry declined significantly, and aluminum social inventory hit a nearly three-year high. As of March 31, the inflection point in China’s aluminum social inventory was still unclear, while the absolute inventory level had already entered the upper range of SMM’s previous forecast of 1.35-1.4 million mt. However, affected by geopolitical conflicts in the Middle East, aluminum supply and demand were both weak, fundamental risks increased, and prices saw wild swings. Under the impact of high prices, aluminum ingot inventory may continue to build further. According to SMM, as of the end of March, some aluminum ingots in certain regions were still backlogged at rail platforms and outside warehouses. High prices also accelerated supply growth: As of the end of Q1, average profits in China’s aluminum industry exceeded 8,000 yuan/mt. Stimulated by high profits, China’s aluminum supply growth is expected to exceed expectations. At the end of 2025, SMM expected China’s aluminum supply growth in 2026 to reach 1.7%; as of the end of Q1 2026, SMM expected that growth rate had risen to 1.9%. Outside China, supply growth was also boosted by high prices: 1) A smelter in Spain had originally planned to resume full production by 2026, and according to foreign media reports in March, it had already resumed to 90% of operating load; 2) In October 2025, an Icelandic smelter cut production on one line due to equipment failure. It had originally planned to resume production in September-October 2026, but has now moved the plan forward to start by the end of April; 3) At the end of 2025, expectations were that Indonesia’s operating aluminum capacity would reach 2 million mt by the end of 2026; that expectation has now been raised to 2.2-2.5 million mt. Q2 Outlook: At present, one of the decisive factors for global aluminum fundamentals and price trends is the geopolitical situation in the Middle East. SMM analysis showed that outside China, aluminum capacity that had already cut production or faced substantial production reduction risk exceeded 3 million mt. If subsequent production cuts from this portion of capacity are confirmed, outside China aluminum supply is expected to maintain negative YoY growth for an extended period, and global aluminum fundamentals are expected to face a large gap, with the gap outside China far exceeding that in China. In this case, aluminum prices in and outside China are expected to rise sharply again, with overseas prices expected to outperform domestic prices. China’s net aluminum imports are expected to decline, while exports from downstream aluminum plants are expected to increase. However, if actual production cuts come in below expectations, while consumption sees a marked reduction due to factors such as energy and inflation, the upward move in aluminum prices may face insufficient momentum. At present, geopolitical conflicts in the Middle East are disrupting the global aluminum supply-demand pattern, and SMM will continue to follow related developments.

PT Inalum, Indonesia's state-owned aluminum giant, called on the government to suspend the construction of new alumina and aluminum plants on Tuesday, citing concerns about oversupply and pressure on the country's bauxite reserves. Melati Sarnita, CEO of Inalum, pointed out that Inalum is concerned that the aluminum industry will face similar problems to the nickel industry after rapid growth, such as oversupply affecting global prices and environmental issues. Inalum cited market data to estimate that once all the alumina projects under construction start operating, Indonesia's alumina capacity will increase from the current about 9 million tons to 29.8 million tons. Melati said that once all projects are completed, the original aluminum capacity is expected to increase from the current

SMM News, March 31 According to SMM data, the average tax-inclusive full cost of domestic aluminum industry in March 2026 rose 0.5% MoM and fell 5.7% YoY, mainly due to a slight rebound in alumina raw material costs during the period. In March, Middle East production cuts pushed up aluminum prices in and outside China. The SMM A00 monthly average spot price (February 26-March 25) rose 2.9% MoM, and aluminum profit margins expanded to 8,316 yuan/mt. Based on monthly average price calculations, 100% of China’s operating aluminum capacity was profitable in March. From the cost breakdown side: Alumina raw materials : According to SMM data, the monthly average of the SMM alumina index in March was 2,685 yuan/mt (January 26-February 25), up 2.4% MoM. During the month, total operating alumina capacity was basically stable, but the Middle East geopolitical conflict raised ocean freight rates for alumina and bauxite, and domestic alumina costs are expected to move higher. Futures prices drove spot prices higher, lifting the monthly average alumina price. Entering April, the upward momentum in spot alumina prices at month-end March appeared slightly insufficient. Some new projects are expected to come online in April or ramp up operating capacity, but as the base price at the beginning of the month was already at a high level, alumina raw material costs in April are expected to post a slight increase. Auxiliary materials market : In March, both prebaked anode and fluoride salt prices pulled back, lowering aluminum auxiliary material costs. Entering April, the Middle East geopolitical conflict raised international oil prices, and higher costs continued to push up petroleum coke prices, which in turn supported higher prebaked anode prices. The April prebaked anode tender price at a large aluminum plant in Shandong rose 300 yuan/mt MoM; for aluminum fluoride, prices are also expected to rise significantly in April due to higher raw material costs. Overall, auxiliary material costs are expected to increase significantly in April. Electricity prices : Electricity prices were generally stable in March. Entering April, power prices are expected to remain broadly stable, and aluminum power costs are expected to hold steady. Overall, in March 2026, SMM expected the weighted average tax-inclusive full cost of dometstic aluminum industry to rise slightly; in April, it was expected to increase significantly MoM, with the average at around 16,150-16,550 yuan/mt.

[SMM Flash] SMM data showed that the PMI of the secondary aluminum industry in March rebounded sharply by 40.9 percentage points MoM to 68.8, returning above the 50 mark. In March, enterprises basically resumed normal production, and downstream demand gradually recovered. Both the production and new orders of secondary aluminum enterprises in March increased significantly from February. In April, orders for secondary aluminum are expected to weaken, and the industry PMI is expected to pull back below the 50 mark.

[SMM Cast Aluminum Alloy Morning Comment: In March, the Secondary Aluminum Industry PMI Rebounded Sharply Into Expansion Territory, and Downward Pressure Remained in April] Overnight, the aluminum alloy 2605 contract price first fell and then rose, showing an overall fluctuating upward trend. After the opening, the price quickly dipped to an intraday low of 23,320 yuan/mt, then gradually stabilized and rebounded, fluctuating upward to a high of 23,610 yuan/mt. It pulled back slightly late in the session and finally closed at 23,585 yuan/mt, down 45 yuan/mt from the previous trading day, a decline of 0.19%.

In March, China’s composite PMI for aluminum processing registered 65.6%, rebounding strongly above the 50 mark.