Petcoke shortage threatens global aluminum supply, JP Morgan warns
By Cygnus | 12 May 2026
Summary
- Hormuz exposure: JP Morgan says around 20% of global petroleum coke supply is exposed to disruptions linked to the Strait of Hormuz crisis.
- Deficit forecast: The bank expects the global aluminum market to face a deficit of nearly 2 million tonnes in 2026 as raw material shortages pressure smelters.
- Slow recovery risk: Analysts warn that while refineries can restart relatively quickly, aluminum smelters may take 12–18 months to fully recover after shutdowns.
NEW DELHI, May 12, 2026 — A growing shortage of petroleum coke (petcoke), a critical raw material used in aluminum production, could disrupt smelting operations far beyond the Middle East, according to a new JP Morgan commodities research note.
The report highlights how the ongoing disruption around the Strait of Hormuz is tightening supplies of both green petroleum coke (GPC) and calcined petroleum coke (CPC), key inputs required for producing carbon anodes used in aluminum smelting. JP Morgan estimates that roughly 20% of global petcoke supply is directly exposed to the shipping and refining disruptions tied to the regional conflict.
The “anode” bottleneck
Petroleum coke is produced during the oil refining process and is essential for manufacturing the carbon anodes consumed during electrolytic aluminum production. Industry estimates suggest that producing one tonne of aluminum requires roughly 0.4–0.5 tonnes of calcined petroleum coke.
JP Morgan warned that if shortages worsen, aluminum producers outside the Gulf region could also face operational challenges or be forced to cut output.
The bank noted that petcoke prices in the US Gulf region have already risen by roughly 20% since the conflict escalated, although the increase remains below the surge in crude oil prices. Analysts believe this indicates that markets may still be underestimating the broader supply-chain risk to industrial metals.
Recovery timelines add pressure
The report also highlighted a major structural risk: restarting aluminum smelters is significantly more difficult than restarting refineries.
According to JP Morgan, while petroleum coke production may recover relatively quickly once refinery operations normalize, damaged or idled aluminum smelters could require 12 to 18 months to fully restore production.
As a result, the bank expects the global aluminum market to remain under sustained pressure through 2026, forecasting a supply deficit close to 2 million tonnes.
Why this matters
- Industrial vulnerability: Aluminum production depends heavily on petroleum coke, creating a secondary supply-chain risk tied directly to oil refining activity.
- Limited substitutes: Alternative technologies such as inert anodes remain in development, leaving the industry largely dependent on petcoke in the near term.
- Price implications: Extended shortages could drive higher aluminum prices, affecting industries including automotive, aerospace, packaging, and construction.
FAQs
Q1. What is petroleum coke used for in aluminum production?
Petroleum coke is processed into calcined petroleum coke and used to make carbon anodes, which are consumed during aluminum smelting.
Q2. Why does the Strait of Hormuz matter for petcoke?
A significant share of global refining and shipping activity linked to petcoke passes through or depends on the Gulf region, making supplies vulnerable to disruptions.
Q3. Why are smelter shutdowns difficult to reverse?
Aluminum smelters operate continuously at extremely high temperatures. Restarting idle “potlines” can take months and requires major capital and technical work.
Q4. What is JP Morgan’s aluminum outlook for 2026?
The bank expects the global aluminum market to face a deficit of around 2 million tonnes in 2026 due to ongoing supply disruptions.