Global aluminium market: Aluminium inventories have tightened sharply, but rising supply is expected to cap the market's upside

Overview

This dashboard reviews the global aluminium market, from bauxite and alumina through smelting and listed producers. J.P. Morgan finds that inventory tightness is real but likely temporary: resilient Chinese consumption and reduced Middle East output have supported the market, while expected supply recovery and Indonesian expansion should limit a sustained price rally.

Core views

Global aluminium production and demand were each down 1% year to date through August. China was the offsetting source of resilience: Chinese aluminium consumption rose 2% to 31.5Mt, while demand in the rest of the world fell 5% to 18.4Mt. China production also increased 2% to 30.2Mt and was running just above its 45Mtpa capacity cap. Outside China, the most significant supply reduction came from the Middle East, where output has fallen at an annualised rate of almost 3Mtpa since April. J.P. Morgan also highlights drought conditions in Yunnan, a province producing about 6Mt of aluminium; it sees no immediate hydropower stress but identifies the situation as a factor to monitor. The demand-production balance has translated into a sharp inventory draw. Global visible aluminium inventories fell by roughly 900kt from a mid-May peak of about 1,840kt to 920kt in late September, below the comparable seasonal levels of the previous five years. SHFE stocks fell from about 1,400kt in May to roughly 700kt. This tightness has supported prices, which were up 8% year to date, and has kept the forward curve in backwardation. However, the bank argues that the curve already reflects expectations of future supply growth rather than a lasting shortage. Since early August, aluminium prices have remained range-bound at US$3,200–3,400/t. J.P. Morgan attributes this to the tension between current inventory tightness and expected oversupply from a recovery in Middle East production and growing Indonesian output. It expects the market to move toward balance by 4Q26, limiting scope for fundamentals-driven outperformance, and forecasts a balanced market in 2027 followed by a surplus in 2028. The report notes that prices are hovering around marginal costs, while its cost-curve analysis tracks smelter, refinery and bauxite economics. A reopening of China's semi-export arbitrage could support the front end of the curve, but J.P. Morgan expects any effect to be temporary backwardation rather than a sustained curve-wide rally. The principal upside risk identified is copper-led: a high copper-to-aluminium ratio could prompt investor rotation into relatively cheap aluminium and strengthen expectations for substitution demand. For equities, J.P. Morgan identifies Rio Tinto, Hindalco, Vedanta and Press Metal as key Overweight views. The aluminium sector trades at an average 7.0x 2027 EV/EBITDA and offers average dividend yields above 4%. The bank recently downgraded Norsk Hydro to Neutral because of concerns over energy costs at its Alunorte refinery in Brazil, including potential spot-LNG needs in 4Q; its 3Q and 4Q EBITDA estimates are about 10% and 12% below Bloomberg consensus, respectively, placing the company on negative catalyst watch into its 3Q results.

Analysis framework

J.P. Morgan combines regional production, consumption, trade and inventory data with forward supply-demand balances. It tests the market outlook against visible inventory trends, futures-curve positioning, marginal-cost and cost-curve analysis, then links the commodity outlook to producer valuation, earnings and target-price comparisons.

Methodology notes

• Industry AnalysisSupply-demand framework

  Regional aluminium supply-demand balance analysis

  The report compares production, consumption, inventories and projected regional supply additions to determine whether the aluminium market is tightening or moving toward balance.

• Industry AnalysisCost curve analysis

  Marginal-cost and producer cost-curve analysis

  J.P. Morgan compares aluminium and alumina prices with marginal costs and ranks smelters, refineries and bauxite mines by cash cost to assess price support and producer exposure.

• Valuation methodsEV/EBITDA valuation

  Enterprise-value-to-EBITDA comparison

  The report compares aluminium producers using forward EV/EBITDA multiples, together with earnings, dividend yields and leverage.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Rio Tinto Limited (RIO.AX)

  Key Overweight aluminium equity exposure

  Strengths

  J.P. Morgan lists Rio Tinto among its key Overweight views.

  Comparison

  2027 EV/EBITDA of 6.1x versus the coverage average of 7.0x.

• Hindalco (HALC.NS)

  Key Overweight aluminium equity exposure

  Strengths

  J.P. Morgan lists Hindalco among its key Overweight views.

  Comparison

  2027 EV/EBITDA of 6.4x and 2027 dividend yield of 0.6%.

• Vedanta Limited (VDAN.NS)

  Key Overweight aluminium equity exposure

  Strengths

  J.P. Morgan lists Vedanta among its key Overweight views and estimates 2027 NPAT 16% above consensus.

  Comparison

  2027 EV/EBITDA of 3.2x and 2027 dividend yield of 7.6%.

• Press Metal (PMET.KL)

  Key Overweight aluminium equity exposure

  Strengths

  J.P. Morgan lists Press Metal among its key Overweight views.

  Comparison

  2027 EV/EBITDA of 13.7x and 2027 dividend yield of 1.6%.

• Norsk Hydro (NHY.OL)

  Neutral-rated producer facing a negative catalyst watch

  Weaknesses

  Potentially higher energy costs at the Alunorte refinery and possible spot-LNG procurement in 4Q.

  Comparison

  J.P. Morgan's EBITDA estimates are about 10% below Bloomberg consensus for 3Q and 12% below for 4Q.

  Risks

  Energy-cost pressure into the 3Q results.

Key data

• Global aluminium demand48.7Mt YTD August 2026Down 1% year on year.
• China aluminium demand31.5Mt YTD August 2026Up 2% year on year.
• Rest-of-world aluminium demand18.4Mt YTD August 2026Down 5% year on year.
• Global visible aluminium inventories920kt in late SeptemberDown about 900kt from the mid-May peak of about 1,840kt.
• Aluminium priceUS$3,200–3,400/t since early AugustUp 8% year to date and range-bound.
• Sector valuation7.0x 2027 EV/EBITDA and 4.3% 2027 dividend yieldAverage across J.P. Morgan's aluminium coverage comp sheet.

Impact & implications

The report's central implication is that current inventory tightness supports aluminium prices but does not by itself establish a durable bull market. Expected Middle East recovery and Indonesian capacity growth should rebalance the market, while copper-led investor rotation or substitution demand remains the main upside scenario. For equities, J.P. Morgan favors selected Overweight-rated producers but is cautious on Norsk Hydro because of refinery energy-cost exposure.

Risks

• Yunnan drought conditions could become a hydropower risk for a province producing about 6Mt of aluminium.
• A high copper-to-aluminium ratio could trigger investor rotation into aluminium and raise substitution-demand expectations.
• Norsk Hydro may face additional spot-LNG costs in 4Q for its Alunorte refinery.

What to watch

• Hydropower conditions in Yunnan.
• The pace of Middle East production recovery and Indonesian aluminium supply growth.
• Whether the Chinese semi-export arbitrage reopens.
• Norsk Hydro's 3Q results and refinery energy-cost outlook.