Higher copper prices are accelerating the adoption of aluminum wiring across the automotive industry. Ferrari, BMW, Stellantis, Tesla, XPeng, Xiaomi and AVATR have expanded the use of aluminum conductors in selected vehicle models to reduce costs and vehicle weight. Aluminum costs about one-quarter as much as copper and weighs only around one-third as much, making it increasingly attractive for EVs. JPMorgan expects aluminum to replace about 6% of global copper demand by 2030 as material substitution accelerates.

Ferrari and BMW are introducing aluminum wiring into new vehicle models, joining Tesla and several Chinese EV manufacturers in replacing part of their copper wiring with aluminum. Aluminum costs roughly one-quarter as much as copper and offers significant weight savings, helping improve vehicle efficiency and driving range. JPMorgan noted that aluminum substitution is accelerating across multiple sectors—including automotive, power cables and home appliances—and estimated that the broader substitution trend could affect around 2% of global copper demand in 2026. Under a scenario where copper supply remains tight and prices stay structurally elevated, the bank projects that as much as 6% of annual copper demand could be replaced by aluminum by 2030. However, due to copper's superior electrical conductivity and performance in high-specification applications, it is expected to remain the dominant conductor material in the near term.

SMM, June 1， According to SMM data , the average all-in cost (tax-inclusive) of the domestic electrolytic aluminum industry in May 2026 fell 1.9% month-on-month (MoM) and 2.2% year-on-year (YoY), primarily driven by declines in alumina prices and electricity prices during the period. Under the pressure of high inventory in May, domestic aluminum prices trended weak. The SMM A00 spot monthly average price (April 26 – May 25) edged down 0.8% MoM, while electrolytic aluminum profit margins expanded by RMB 110/mt to RMB 8,413/mt, with average profitability up 126.4% YoY. Based on monthly average price calculations, 100% of domestic electrolytic aluminum operating capacity was profitable in May. Breaking down the cost components: Alumina feedstock: According to SMM data, the SMM Alumina Index averaged RMB 2,674/mt in May (April 26 – May 25), down 2.3% MoM. Although average daily alumina output edged slightly lower within the month, alumina market fundamentals remained relatively loose amid the impact of overseas alumina import supply, compounded by the gradual ramp-up of new projects in Guangxi. Spot alumina prices lacked upside momentum. Entering June, as newly commissioned capacity continues to ramp up and maintenance outages are progressively completed, domestic alumina output is expected to increase, with spot prices likely to consolidate sideways for the most part. Auxiliary materials: In May, pre-baked anodes and fluoride salts saw price increases supported by cost-side factors, pushing up auxiliary material costs. Entering June, the pass-through of earlier cost-side weakness, combined with a relatively loose supply landscape, is expected to lead to a modest decline in pre-baked anode prices. On the fluoride salt front, downstream producers have limited capacity to absorb high prices, although elevated costs still provide a degree of price support; amid this tug-of-war, fluoride salt prices are expected to slip modestly MoM. Overall, electrolytic aluminum auxiliary material costs are projected to decline in June. Electricity prices: Power prices fell MoM in May, primarily because the flood season is approaching, with electricity prices in water-rich southern regions declining notably, significantly reducing electrolytic aluminum power costs. Entering June, coal price dynamics may push electricity prices slightly higher in some provinces; however, with the southern flood season underway, power prices are expected to continue declining overall. On balance, electrolytic aluminum power costs are expected to remain broadly stable. Overall , the SMM weighted-average all-in cost (tax-inclusive) of the domestic electrolytic aluminum industry edged lower in May 2026. Electrolytic aluminum costs in June are expected to remain relatively steady, with the average forecast at around RMB 15,800–16,200/mt .

Rising aluminum prices linked to Middle East supply disruptions are increasing installation costs for the US solar industry. Aluminum is widely used in solar mounting systems, rails and brackets, and industry participants said solar racking prices have already risen by around 20%. Since late February, LME aluminum prices have increased about 15%, while COMEX aluminum futures gained more than 30%. The US Energy Information Administration expects utility-scale solar additions to reach 43.4 GW in 2026, but higher aluminum costs could weaken project profitability. Industry estimates suggest rising aluminum frame costs may add around USD 5 billion in expenses across 500 GW of planned US solar projects.

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.

According to SMM data, the average tax-inclusive full cost of China's aluminum industry in April 2026 was up 1.5% MoM and down 0.6% YoY, mainly due to slight increases in both raw and auxiliary material prices during the period. Supported by cost factors, auxiliary material prices for prebaked anode and aluminum fluoride are both expected to rise in May, and aluminum cost is expected to continue to edge up.