Petroleum Coke May Emerge as Another Key Supply Risk for the Aluminum Industry
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Petroleum Coke May Emerge as Another Key Supply Risk for the Aluminum Industry
Geopolitical conflict in the Strait of Hormuz has tightened petroleum coke supply, but aluminum producers have not yet faced shortages; carbon-related costs account for 15–20% of C1 cash costs, and long-term reliance on petroleum coke persists. J.P. Morgan maintains overweight ratings on major aluminum companies.
- Petroleum coke is a critical raw material for carbon anodes used in aluminum smelting; approximately 0.4–0.5 tons of carbon anode material are required per ton of aluminum produced.
- Conflict in the Strait of Hormuz has disrupted roughly 3% of global aluminum capacity; the Middle East accounts for ~40% of global crude oil supply.
- Petroleum coke prices have risen only ~21%, significantly less than crude oil (>50%) and jet fuel (>80%).
- Carbon-related costs represent 15–20% of C1 cash costs, yet major aluminum producers have not reported shortages.
- Alternative carbon anode technologies (e.g., inert anodes, HalZero) remain in early development stages and cannot replace petroleum coke in the near to medium term.
Report interpretation
Overview
J.P. Morgan has published a global aluminum industry research report focusing on petroleum coke—a relatively obscure raw material—that may emerge as another significant supply risk for aluminum smelting. The report notes that geopolitical conflict in the Strait of Hormuz has disrupted some aluminum smelting capacity in the Middle East and pushed up crude oil and related byproduct prices, yet the petroleum coke market has lagged in price appreciation. Although short-term petroleum coke supply is somewhat tight, major aluminum producers have not experienced material shortages. Carbon anode costs account for 15–20% of C1 cash costs. J.P. Morgan believes alternative carbon anode technologies (e.g., inert anodes, HalZero) remain in early development stages, and the aluminum industry will continue to rely on petroleum coke over the near to medium term. The report maintains overweight ratings on Norsk Hydro, Chalco, China Hongqiao, Press Metal, Vedanta, and Hindalco.
Core views
Petroleum coke is a critical raw material for carbon anodes used in aluminum smelting; approximately 0.4–0.5 tons of carbon anode material are required per ton of aluminum produced. Petroleum coke quality is essential: low sulfur content, low metal impurities, and stable crystal structure are prerequisites for efficient electrical conductivity and minimal product contamination. The Strait of Hormuz conflict has created multiple supply risks: the Middle East hosts ~7 million tonnes/year of smelting capacity (~9% of global capacity); attacks on two smelters have disrupted ~3% of global aluminum capacity. Due to alumina shortages in the region, ~8 million tonnes/year of alumina must be imported through the Strait. The Middle East supplies ~40% of global crude oil (the Persian Gulf alone accounts for ~20%); crude shortages have driven Brent crude prices up >50%, jet fuel >80%, and Southeast Asian gasoline and diesel up 40–100%+, while petroleum coke prices have risen only ~21%. The report highlights that the petroleum coke market is relatively small, opaque, and illiquid, with limited hedging tools available to consumers. Based on Q1 2026 earnings and industry channel checks, views on petroleum coke inventory levels among aluminum producers vary. No company reports facing shortages: Norsk Hydro secures most of its requirements via 1–2 year contracts, repriced quarterly, and currently faces no shortage; Chinese aluminum producers (e.g., China Hongqiao) typically procure prebaked anodes directly, holding ~1 month of inventory, with stable supply and only modest price increases; Alcoa holds 1–2 months of inventory, priced quarterly, estimating an annual cost sensitivity of ~$8 million per $10/ton change in petroleum coke price. Nonetheless, carbon-related costs represent 15–20% of C1 cash costs. Regarding alternative carbon anode technology pathways: ELYSIS—a joint venture between Rio Tinto and Alcoa—achieved the first commercial-scale electrolytic cell using inert anodes at the Arvida smelter in November 2025; Rusal announced stable production of P1020-grade aluminum using inert anodes in August 2025. Norsk Hydro takes a more cautious stance, viewing CCS (carbon capture and storage) as a mid-term decarbonization pathway for existing smelters, while its HalZero technology is better suited for greenfield projects but remains in early development. Overall, the report concludes that efforts to eliminate petroleum coke and carbon anodes will yield meaningful projects only in the long term, and the aluminum industry will remain dependent on petroleum coke in the near to medium term.
Analysis framework
The report adopts a raw-materials risk lens to analyze the supply vulnerability of petroleum coke—the core consumable in aluminum smelting. It first explains petroleum coke’s critical role in the Hall-Héroult electrolytic process, then assesses supply disruption risks arising from geopolitical events (i.e., the Strait of Hormuz conflict). By contrasting price movements of crude oil, refined products, and petroleum coke, it reveals the market’s opacity and low liquidity. Next, drawing on Q1 2026 earnings and industry channel feedback, the report systematically reviews inventory levels, procurement models, and cost sensitivities across key producers (Norsk Hydro, Alcoa, China Hongqiao, etc.). Finally, it evaluates the maturity of alternative technologies—including inert anodes and HalZero—to conclude that aluminum’s dependence on petroleum coke will persist over the near to medium term.
Methodology notes
Supply-Demand Framework
The report analyzes petroleum coke supply risks from both the supply side (Middle Eastern production halted by conflict) and demand side (ongoing consumption by aluminum smelting), assessing the likelihood and transmission path of supply shortages—an archetypal supply-demand analysis.
Volume-Price Decomposition
By quantifying carbon anode consumption per ton of aluminum (0.4–0.5 tons) and translating petroleum coke price changes into financial impact (e.g., $10/ton change → ~$8 million annual cost impact), the report converts macro-level risks into concrete financial sensitivities.
Cost Structure Analysis
Using cost disclosures from Norsk Hydro and Alcoa, the report quantifies the share of carbon anodes (including petroleum coke) in C1 cash costs (15–20%), enabling assessment of petroleum coke price shocks across different aluminum producers.
Geopolitical Risk Transmission
Starting from the Strait of Hormuz conflict, the report traces risk transmission along the value chain—crude oil → petroleum coke → carbon anodes → aluminum smelting—to reveal how upstream geopolitical events affect downstream manufacturing via intermediate goods.
Substitution Effect Analysis
The report surveys technological alternatives—including inert anodes, HalZero, and bio-based substitutes—and evaluates their feasibility and timelines for replacing petroleum coke as a carbon anode feedstock, concluding substitution is unattainable in the near to medium term.
Asset mapping & comparison
Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).
- Norsk Hydro (NHY.OL)Overweight rating; benefits from long-term contracts securing supply and cost stability; carbon-related costs account for ~18% of C1 cash costs.
- Strengths
- Most petroleum coke requirements secured under 1–2 year contracts, repriced quarterly; confirmed no shortage in Q1'26; actively developing CCS and HalZero alternatives.
- Comparison
- Better buffered against petroleum coke price volatility than firms relying on spot procurement.
- Chalco (2600 HK)Overweight rating; benefits from stable domestic anode supply chains in China.
- Strengths
- Chinese aluminum producers typically procure prebaked anodes directly, limiting direct visibility into upstream petroleum coke dynamics—but supply remains stable.
- Comparison
- Similar to China Hongqiao, primarily reliant on domestic markets and thus relatively insulated from Middle Eastern supply risks.
- China Hongqiao (1378 HK)Overweight rating; holds ~1 month of prebaked anode inventory sourced from multiple domestic suppliers.
- Strengths
- Adequate inventory levels, stable supply, only modest price increases, current aluminum margins comfortably absorb cost pressures; pricing based on monthly average prices, exhibiting moderate trends.
- Comparison
- Compared with Norsk Hydro, exhibits lower direct visibility into the upstream petroleum coke market, yet maintains a relatively stable supply chain.
- Press Metal (PMAH MK)Overweight rating; Malaysian aluminum producer, typically procures carbon anodes from manufacturers.
- Strengths
- Procurement model insulates it from direct exposure to the petroleum coke spot market.
- Comparison
- Like Norsk Hydro and Chinese aluminum producers, indirect procurement mitigates direct risk.
- Vedanta (VEDL IN)Overweight rating; Indian aluminum producer benefiting from relative regional advantages.
- Hindalco (HNDL IN)Overweight rating; Indian aluminum producer.
Key data
- Petroleum Coke Price Increase~21%Significantly lower than Brent crude (>50%), jet fuel (>80%), and Southeast Asian gasoline/diesel (40–100%+)
- Carbon Anode Consumption per Ton of Aluminum0.4–0.5 tonsOngoing consumption by aluminum smelting
- Carbon-Related Costs as % of C1 Cash Costs15%–20%Based on latest cost disclosures from Norsk Hydro and Alcoa
- Alcoa’s Petroleum Coke Price Sensitivity~$8 million/yearAnnualized cost impact per $10/ton change in petroleum coke price (2026)
- Middle Eastern Aluminum Smelting Capacity Share~9%Equivalent to ~7 million tonnes/year of smelting capacity
- Globally Disrupted Aluminum Capacity~3%Disruption caused by attacks on two smelters
- Middle Eastern Annual Alumina Imports~8 million tonnesImported via the Strait of Hormuz
Impact & implications
The report concludes that petroleum coke supply risks are manageable in the short term but warrant close attention. Major aluminum producers (e.g., Norsk Hydro, China Hongqiao) have thus far avoided disruption thanks to long-term contracts and diversified procurement—but the petroleum coke market’s opacity and illiquidity mean prolonged or escalated geopolitical conflict could push up carbon-related costs. Producers with strong supply chain management capabilities (e.g., Norsk Hydro, Chalco, China Hongqiao) face relatively muted impacts from petroleum coke price increases; however, smaller or spot-market-dependent aluminum producers may experience margin pressure. Longer term, although inert anode and other alternatives show progress, they cannot alter the aluminum industry’s dependence on petroleum coke over the near to medium term.
Risks
- Prolonged or expanded geopolitical conflict leading to further tightening of petroleum coke supply.
- Lagging petroleum coke price increases eventually feeding through to carbon anode costs.
- Slower-than-expected progress or commercialization hurdles for inert anode and other alternative technologies.
What to watch
- Geopolitical developments in the Strait of Hormuz and their implications for crude oil and petroleum coke supply.
- Subsequent quarterly petroleum coke inventory levels and cost changes at major aluminum producers (e.g., Norsk Hydro, Alcoa, China Hongqiao).
- Commercialization progress of inert anode technologies (ELYSIS, Rusal) and HalZero.
- Price trends and liquidity evolution in the petroleum coke market.