China nears its 45Mt aluminium smelting cap as Rusal's EU quota falls to 50,000t; LME aluminium averages $2,680/t in H1 2026

Summary

China's self-imposed 45Mt annual primary Aluminium smelting capacity ceiling will be reached by late 2026 on current ramp rates in Yunnan and Xinjiang, according to S&P Global analysis: operating capacity reached approximately 43.8Mt/year at end-2025. The cap, introduced in 2017 as an environmental consolidation measure, has never been repealed, and Chinese industry debate over whether to lift it remained unresolved through mid-2026. Simultaneously the European Commission cut Rusal's preferential import quota from 275,000t to 50,000t for February-December 2026, removing approximately 225,000t of low-tariff Russian aluminium from the EU market. LME three-month aluminium averaged $2,680/t in H1 2026, up from $2,245/t in H1 2025, with a January peak of $2,987/t driven by tight scrap availability and Yunnan province energy disruptions. European duty-paid premiums rose $60-80/t in February in response to the Rusal quota cut.

The split

The LME rally and China cap narrative is bullish for non-Chinese producers: if the 45Mt ceiling holds, China's ability to flood global markets with incremental aluminium supply is constrained for the first time in the metal's modern history. Western aluminium producers (Rio Tinto Aluminium, Alcoa, Hydro) and analysts who have spent a decade watching Chinese overcapacity suppress prices see the cap as a genuine structural shift. The countervailing risk is policy reversal: China has repeatedly signalled that the cap may be revised upward, and Chinese smelters in Yunnan and Inner Mongolia have lobbied actively for a higher ceiling. The Rusal quota cut has less long-term significance: Russia's aluminium export options have already been substantially redirected to Asian markets since 2022, and the 50,000t residual quota confirms rather than deepens the EU-Russia energy and materials decoupling. The Guinea-EGA settlement resolved the most acute near-term bauxite supply risk; Guinea supplies 25% of global bauxite, and any renewed disruption would tighten the alumina-to-aluminium pipeline that the China cap constrains at the smelting stage.

By the numbers

• 45Mt, China's self-imposed annual primary aluminium smelting cap.
• 43.8Mt/year, estimated Chinese smelting capacity at end-2025 (S&P Global).
• Late 2026, projected timing for China to reach the 45Mt cap on current ramp rates.
• 275,000t, Rusal's previous annual preferential import quota to the EU.
• 50,000t, Rusal's reduced EU quota for February-December 2026 (an 82% cut).
• $2,680/t, LME aluminium H1 2026 average.
• $2,987/t, LME aluminium January 2026 peak.
• $60-80/t, increase in European duty-paid aluminium premiums after the Rusal quota cut.

Why it matters

Aluminium is a high-volume industrial metal used in EVs (structural lightweighting), renewable energy (solar panel frames, power-line conductors), aerospace and packaging. China's 45Mt cap matters because it is the first structural constraint on Chinese aluminium capacity in two decades; if maintained, it implies that global primary aluminium growth from 2027 onward must come from non-Chinese smelters, most of which require hydropower or firm renewable electricity to be cost-competitive. The Rusal quota cut accelerates the EU's aluminium sourcing shift toward the Middle East (Emirates Global Aluminium) and domestic recycling, consistent with CRMA goals. The Guinea bauxite concentration risk, as documented in the EGA-Guinea dispute, sits upstream: bauxite supply from a single politically fragile country feeds a refining and smelting chain that Western industry cannot easily replace.

What to watch

• Whether China formally revises the 45Mt cap upward; any policy announcement would immediately suppress LME prices.
• Energy availability in Yunnan: hydro output determines whether the province's aluminium capacity can continue ramping within the cap.
• Rusal's market response to the EU quota cut: volume redirected to Asian buyers (India, China) and pricing implications for the European spot market.
• Guinea bauxite policy: whether Doumbouya government renegotiations affect CBG supply to Middle Eastern and European alumina refineries beyond the EGA settlement.
• LME aluminium price trajectory in H2 2026: whether the $2,550-$2,700/t Q2 range holds or corrects toward prior-year levels as supply normalises.