Alcoa Corporation expects alumina shipments from its Pinjarra refinery in Western Australia to decline by approximately 120,000 tonnes in the second quarter compared with the first quarter after Cyclone Narelle disrupted LNG supplies in March. The refinery, which has an annual alumina production capacity of 4.7 million tonnes, is expected to incur an additional USD30 million in production costs during the quarter. Alcoa also expects around USD15 million in extra fuel costs at its São Luís alumina refinery in Brazil due to ongoing Middle East tensions. The company noted that its alumina business is facing pressure from weak alumina prices and lower-quality bauxite supplies in Western Australia. Following the update, Alcoa shares fell 9.5%.

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 .

Overall market trading activity was sluggish. At month-end, the market maintained a steady posture, watching for the outcome of the new round of aluminum fluoride tender prices. However, as the raw material side showed signs of easing, prices are expected to be slightly under pressure next month. Going forward, close attention should continue to be paid to dynamic changes on the raw material cost side, as well as marginal adjustments in the procurement pace of downstream aluminum enterprises.

According to Hydro's official website, Hydro's adjusted EBITDA for the first quarter of 2026 was NOK 8.668 billion, lower than NOK 9.516 billion in the same period last year. This was mainly due to lower raw material costs, higher metal prices, and increased sales of alumina and metals, but this was partially offset by lower alumina prices, a stronger NOK, and lower electricity generation. Hydro's profitability was strong this quarter, with adjusted earnings per share increasing to NOK 2.07 in the first quarter of 2026, compared to NOK 1.63 in the first quarter of 2025. The upstream business segment continued to operate strongly in the first quarter.

Overall, cost support remains strong, supply is tightening while demand is stable, and prices are expected to rise further next month. Close attention should be paid to dynamic changes in raw material costs and adjustments in downstream procurement pace going forward.

[SMM Aluminum Express News] Norsk Hydro reported strong Q1 2026 performance, with adjusted EBITDA at NOK 8.67 billion, slightly down year-on-year due to currency and power impacts. Higher aluminum prices and increased alumina and metal sales supported earnings, while weaker alumina prices, a stronger NOK, and lower power production weighed on results. Adjusted EPS rose to NOK 2.07 (from NOK 1.63), though free cash flow was negative NOK 4 billion due to higher working capital tied to elevated metal prices and volumes. Return on capital employed (RoaCE) stood at 10.1%.