SMM News, May 6: According to SMM data, the average all-in tax-included cost of the domestic primary aluminum industry in April 2026 rose by 1.5% month-on-month and fell by 0.6% year-on-year, mainly due to a mild increase in prices of raw and auxiliary materials during the period. In April, the supply gap of primary aluminum overseas pushed up LME aluminum prices. However, high domestic inventory put strong downward pressure on aluminum price upside. The monthly average price of SMM A00 spot aluminum (March 26 - April 25) edged up only 1.0% month-on-month. The profit margin of primary aluminum narrowed slightly by RMB 12 per ton to RMB 8,303 per ton, with the average profit surging 125.1% year-on-year. Calculated based on the monthly average price, 100% of the operational primary aluminum capacity in the domestic market remained profitable in April. Breakdown of Cost Components Alumina price dipped intra-month but monthly average climbed month-on-month SMM data showed that the monthly average SMM alumina index stood at RMB 2,736 per ton in the statistical period of March 26 to April 25, up 1.9% month-on-month. The overall operational alumina capacity stayed stable during the month, and prices bottomed out and rebounded. Driven by market rumors over the bauxite quota policy in Guinea, bullish market sentiment picked up moderately. Nevertheless, the relatively high price at the start of the month lifted the overall monthly average. Entering May, with newly commissioned capacity ramping up steadily, alumina output is expected to increase. Meanwhile, continuous inflows of imported alumina into the domestic market will further ease spot alumina supply. Given the pending clarification of Guinea’s bauxite policy, supply tightening may trigger a minor price rebound. Alumina raw material costs are expected to remain in a consolidating trend in April. Rising costs drive up prices of auxiliary materials Geopolitical conflicts in the Middle East pushed up international crude oil prices in April. Higher cost levels kept petroleum coke prices on an upward track, underpinning higher prebaked anode prices. Aluminum fluoride prices also moved higher in April amid rising raw material costs. Auxiliary material prices will maintain an upward trend in May, driving a further rise in the auxiliary material cost of primary aluminum and lifting the overall cost center slightly. Power prices stabilize, hydropower costs expected to drop entering wet season Power prices remained generally steady in April. As the market gradually transitions from the normal water period to the wet season starting in May, hydropower tariffs in some regions are projected to edge down, leading to a mild decline in the power cost of primary aluminum production. Overall, the weighted average all-in tax-included cost of the domestic primary aluminum industry edged higher in April 2026. The primary aluminum cost is expected to keep rising moderately month-on-month in May, with the average level projected at around RMB 16,200 - 16,600 per ton.

SMM News, April 27: On April 24, 2026, market rumors emerged that Guinea would cap its bauxite export volume at 150 million tons, with the relevant policy to be officially released on April 25. The news drove a sharp rise in alumina during the overnight session that day. The main alumina contract 2609 hit a high of 2,899 yuan per ton and closed at 2,894 yuan per ton, up 2.76% from the previous settlement price. As of April 25, 2026, no updated official policy documents had been released on relevant government websites in Guinea. Per market rumors, Guinea’s bauxite exports will be restricted to 150 million tons. Should the final policy be implemented as rumored, based on Guinea’s general bauxite trade flow ratios and historical shipment volumes, SMM estimates that domestic bauxite imports from Guinea will drop to approximately 132 million tons in 2026. Customs data for 2025 showed domestic imports of Guinea bauxite stood at around 149 million tons, Australian bauxite imports at roughly 37.42 million tons, and non-mainstream source bauxite imports at about 14.26 million tons. If Guinea bauxite imports fall to 132 million tons in 2026, Australian bauxite imports remain largely stable, and non-mainstream bauxite imports edge down to around 12.5 million tons, the total domestic bauxite import volume is projected to decline to roughly 182 million tons. SMM forecasts domestic bauxite output to reach 79 million tons in 2026 (including volumes supplied for non-metallurgical alumina production), putting the total domestic bauxite supply at approximately 261 million tons for the year. SMM estimates domestic metallurgical alumina output at 87.22 million tons in 2026, sufficient to support a annually aluminum production capacity of 45.3 million tons. The alumina market will shift to a net import status. Factoring in bauxite demand for non-metallurgical alumina segments, overall bauxite total demand is expected to hit around 262 million tons. On the whole, the bauxite market fundamentals are set to shift into a tight balance in 2026. Amid raw material inventory buildup demand from newly commissioned alumina capacity, the bauxite market is theoretically poised to face mild tight supply conditions. However, actual market performance is expected to be looser than modelled calculations, for the following key reasons: Electrolytic aluminum production cuts in the Middle East have exacerbated overseas alumina surplus, while global bauxite supply contraction has lifted price expectations. Rising domestic bauxite prices will push up local alumina production costs, further enhancing the cost competitiveness of overseas alumina. Higher alumina imports will replace part of bauxite imports, easing domestic bauxite supply tightness. Elevated inventory levels will ease market tightness. In 2025, high price incentives drove a substantial increase in bauxite supply, resulting in a notable supply surplus and sharp inventory accumulation.Data from SMM showed domestic port bauxite inventories stood at 21.32 million tons and bonded ore inventories at alumina refineries at about 57.06 million tons by early 2026, with combined inventories reaching 78.38 million tons. Ample inventory buffers will keep actual market conditions looser than theoretical projections. In summary, if Guinea finalizes its policy to cap total bauxite exports at 150 million tons with no major fluctuations in ocean freight rates, bauxite prices are expected to trend a little bit higher. Nevertheless, substantial overseas alumina surplus and increased substitutable alumina imports will cap upside potential for bauxite prices. Barring unforeseen black swan events, neither bauxite nor alumina prices are likely to replicate the strong rally seen from late 2024 to early 2025. In the short term, both buyers and sellers in the bauxite market are adopting a wait-and-see stance, pending official updates on Guinea’s new policy. Market sentiment remains cautious, and prices are projected to move in a volatile range ahead of clear policy guidance.

SMM Alumina Morning Comment 4.10 Futures: During the night session, the most-traded alumina futures contract AO2605 opened at 2,643 yuan/mt, reaching a high of 2,665 yuan/mt and a low of 2,622 yuan/mt, and closed at 2,641 yuan/mt, down 31 yuan/mt from the previous day. Open interest increased by 2,876 lots to 181,200 lots, as bulls and bears continued to wrestle in the market. From a technical perspective, the closing price was below MA5 (2,679.40), MA10 (2,762.00), and MA30 (2,684.90), indicating certain overhead resistance for upward movement. Meanwhile, the MACD indicator DEA (-19.09) crossed above DIF (-57.41), with the "death cross continuing" and the histogram at -76.03. Alumina futures are expected to be in the doldrums in the short term, and continued attention should be paid to geopolitical impacts, commissioning plans for new capacity, and inventory changes. Industry Updates: 1) Ex-China alumina transactions: On April 9, 2026, 30,000 mt of alumina was traded outside China at a transaction price of $306/mt FOB Western Australia, for May shipment. Ore: As of April 9, 2026, the SMM imported bauxite index was at $68.41/mt, flat from the previous trading day; the SMM Guinea FOB average price was at $38.5/mt, flat from the previous trading day; the SMM Guinea bauxite CIF average price was at $68.5/mt, flat from the previous trading day; the SMM Australian low-temperature bauxite CIF average price was at $61.5/mt, flat from the previous trading day; the SMM Australian high-temperature bauxite CIF average price was at $56.5/mt, flat from the previous trading day; the Malaysian bauxite CIF average price was at $52/mt, flat from the previous trading day; the Malaysian bauxite CIF (washed) average price was at $62.5/mt, flat from the previous trading day; the Ghanaian bauxite CIF price was at $76.5/mt, flat from the previous trading day; the bauxite CFR (Turkey) price was at $78/mt, flat from last Friday. Overall, domestic ore supply was relatively sufficient, and ore prices were basically stable. For imported ore, against the backdrop of ocean freight rate fluctuations, some mines controlled shipments, providing certain support for ore prices. However, alumina refinery inventories remained at high levels (approximately 92 days), and alumina refineries showed weak purchase willingness, with buyers and sellers continuing to negotiate on pricing. Ore prices are expected to fluctuate at highs in the short term, and the market should focus on the implementation of Guinea's "quota system" policy and ocean freight rate trends going forward. Spot Prices: As of April 9, 2025, the SMM alumina index was at 2,771.37 yuan/mt, down 9.86 yuan/mt MoM; the SMM Shandong alumina index was at 2,752.63 yuan/mt, down 13.9 yuan/mt MoM; the SMM Henan alumina index was at 2,802.74 yuan/mt, down 15.3 yuan/mt MoM; the SMM Shanxi alumina index was at 2,791.73 yuan/mt, down 11.89 yuan/mt MoM; the SMM Guizhou alumina index was at 2,809.29 yuan/mt, down 4.96 yuan/mt MoM; the SMM Guangxi alumina index was at 2,762.94 yuan/mt, down 5.17 yuan/mt MoM. Spot-Futures Price Spread Daily Report: According to SMM data, on April 9, the SMM alumina index was at a premium of 95.37 yuan/mt against the most-traded contract's latest transaction price at 11:30 AM. Warrant Daily Report: On April 9, total registered alumina warrants increased by 12,355 mt from the previous trading day to 464,500 mt. By region: Shandong increased by 6,035 mt to 58,035 mt; Henan remained flat at 17,710 mt; Guangxi increased by 301 mt to 29,753 mt; Gansu remained flat at 49,847 mt; Xinjiang increased by 6,019 mt to 309,200 mt. Markets Outside China: As of April 9, 2026, the FOB Western Australia alumina price was $320/mt, the ocean freight rate was $31.35/mt, and the USD/CNY selling rate was around 6.85. This translated to a selling price at major domestic ports of approximately 2,800.97 yuan/mt, which was 29.6 yuan/mt higher than the alumina index price. According to the SMM model, the import window was closed. Summary: Supply side, as of Thursday this week, the weekly industry operating rate edged up by 0.26 percentage points, mainly because newly commissioned projects in Guangxi were in a slow production ramp-up phase, driving a marginal weekly production increase of 6,000 mt, with overall industry supply continuing to increase. Inventory side, the spot market remained generally tight, with some enterprises still drawing down their own inventories, resulting in destocking of 9,000 mt at plants. Meanwhile, alumina refinery inventories edged up by 6,000 mt, mainly due to inventory buildup from new products as Guangxi ramped up production. Warrant side, the price spread between futures and spot cargo previously offered profit margins, prompting previously registered warrants to be shipped to delivery warehouses, which in turn pushed up alumina futures inventory. Port inventory saw destocking of 32,000 mt this week, mainly because alumina that had previously arrived at ports was transshipped to the Middle East, leading to a decline in port inventory. Overall, the national alumina market saw a slight inventory buildup, mainly driven by increased warrant registrations, which pushed overall inventory levels slightly higher. Looking ahead to next week, current warrant inventory is gradually approaching full capacity, and the inventory buildup trend is expected to continue to be driven by the sustained release of newly commissioned alumina refinery capacity. Alumina inventory is expected to continue showing a slight inventory buildup trend next week. [Data other than publicly available information is derived from public information, market communication, and SMM's internal database models, processed by SMM for reference only and does not constitute decision-making advice.]

[SMM Aluminum Express News] PT Bukit Asam (PTBA) is seeking partners to build a 1.25 GW coal-fired power plant in Mempawah to support Inalum’s 600,000 tpy aluminum smelter. The project, backed by an MoU between PTBA and Inalum, will require ~5.5 million tons of coal annually (180–200 million tons over 30 years). PTBA targets FID by end-2026, with potential project start in 2027. The smelter itself is part of a larger integrated bauxite–alumina–aluminum chain, with US$2.4 billion investment for the smelter and US$890 million for SGAR Phase 2. It will process 3 Mt bauxite into 1 Mt alumina, then into 600 kt aluminum, supplied by Antam mines. Overall, this strengthens Indonesia’s downstream strategy, boosting domestic alumina capacity to 2 Mt/year and bauxite absorption to 6 Mt/year.

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.