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Aluminium · Decarbonisation · Carbon MarketsSecondary Aluminium in India: The 95% Lower-Carbon Route, the Supply Challenge and Why the Recycling Sector Holds India’s Lowest CBAM Cost Position
India’s secondary aluminium sector — producing metal from recycled scrap rather than mined bauxite — already contributes approximately 40% of the country’s total aluminium supply from a recycling capacity of more than 2 million tonnes per year. The carbon case is extraordinary: recycling aluminium uses 95% less energy and emits over 90% less CO₂ than primary smelting. At CBAM carbon prices of €80/tCO₂e, an Indian secondary aluminium producer faces certificate costs of approximately €20 to €50 per tonne of metal — compared to €1,000 to €1,400 per tonne for a coal-based primary smelter. This enormous cost gap makes secondary aluminium India’s most structurally advantaged aluminium product for EU market participation from 2026 onward. But the sector faces a defining constraint: India’s domestic aluminium scrap base is thin and heavily dependent on imports, with approximately 85% of recycling feedstock sourced from abroad. As major scrap-generating regions tighten export controls and compete for the same recycled metal, India’s secondary sector must accelerate domestic scrap collection, formalise its recycling infrastructure, and navigate an evolving CBAM framework that now includes embedded emissions from pre-consumer scrap in the calculation.
Secondary aluminium (produced by remelting and recycling scrap) uses approximately 95% less energy than primary aluminium (produced by the Hall-Héroult electrolytic process). The GHG emission intensity of secondary aluminium is approximately 0.5 to 2.0 tCO₂e per tonne — compared to 13 to 21 tCO₂e/t for Indian coal-based primary smelters. This gives India’s secondary sector an extraordinary structural advantage under both CCTS (where GEI targets are set per tonne of product) and CBAM (where embedded emissions determine the EU certificate cost).
India’s secondary aluminium sector contributes nearly 40% of national aluminium supply from a recycling capacity exceeding 2 million tonnes per year. India’s total aluminium demand is projected to grow from approximately 5.3 million tonnes today to 8.3 million tonnes by 2030, with both primary and secondary producers required to scale to meet this growth. Secondary aluminium aligns with the NITI Aayog Circular Economy Roadmap, Make in India 2.0, and India’s Net Zero 2070 pathway.
India’s secondary sector depends on approximately 80% imported scrap and 20% domestic scrap — making it significantly exposed to global scrap availability and price dynamics. Aluminium scrap imports grew from approximately 0.88 million tonnes in 2015 to a projected 2 million tonnes in 2025 — an increase of approximately 285% over 14 years. Europe now supplies approximately 30% of India’s aluminium scrap imports. The EU is reviewing whether to restrict scrap exports, and China’s secondary aluminium sector is simultaneously growing rapidly, competing for the same global scrap pool.
The CBAM Omnibus simplification introduced a pre-consumer scrap anti-circumvention rule from 2026: embedded emissions from pre-consumer scrap (industrial off-cuts and process waste from high-carbon manufacturing) must now be included in CBAM embedded emission calculations. This prevents secondary producers from purchasing pre-consumer scrap from coal-based primary smelters and claiming zero embedded emissions. Post-consumer scrap (end-of-life vehicles, appliances, construction materials) retains favourable CBAM treatment — its upstream embedded emissions have already been attributed to the original product lifecycle.
Secondary aluminium was added to the CCTS under the January 13, 2026 notification, alongside petroleum refineries, petrochemicals, and textiles. The GEI baseline for secondary aluminium (approximately 0.5 to 2.0 tCO₂e/t) is so much lower than primary that even modest absolute reductions generate proportionally significant CCC yields per tonne of production. The key compliance lever for secondary producers is electricity source — since remelting is electricity-intensive even at much lower total consumption per tonne, switching to renewable electricity directly reduces GEI.
The physics of recycling — why secondary aluminium is the most structurally advantaged product
The carbon advantage of secondary over primary aluminium is not a marginal efficiency improvement — it is a structural consequence of eliminating the most energy-intensive step in the entire aluminium production chain. Primary aluminium production begins with bauxite mining, moves through alumina refining (the Bayer process), and culminates in the Hall-Héroult electrolytic smelting process — where aluminium oxide is dissolved in molten cryolite and reduced to metal at extremely high temperatures using continuous electrical current. This reduction step consumes approximately 14,000 to 15,000 kWh of electricity per tonne of aluminium produced and generates the large Scope 1 and Scope 2 emissions that define the carbon challenge facing India’s primary sector.
Secondary aluminium production bypasses the reduction step entirely. Scrap aluminium — whether automotive castings, packaging foil, construction extrusions, or electrical cable — is already in metallic form. It needs only to be sorted, cleaned, and remelted. Remelting consumes approximately 700 to 900 kWh of electricity per tonne — approximately 5 to 6% of the energy required for primary production. The carbon consequence is equally dramatic: where a coal-powered primary smelter generates 13 to 21 tCO₂e per tonne of aluminium, a secondary producer remelting scrap generates approximately 0.5 to 2.0 tCO₂e per tonne.
This comparison makes the strategic importance of secondary aluminium unmistakable. At EU ETS carbon prices of €80/tCO₂e, the CBAM cost gap between coal-based primary aluminium (~€1,000–1,400/t) and secondary aluminium (~€20–50/t for post-consumer scrap) is approximately €950 to €1,350 per tonne — on a product whose LME price is approximately €2,000 to €2,300 per tonne. For EU buyers, the carbon cost of sourcing from India’s primary smelters adds approximately 45 to 60% of the product’s market value in CBAM certificates alone. Secondary aluminium from India, by contrast, carries a CBAM burden of less than 2.5% of market value. The commercial implication is stark: India’s secondary sector can participate in EU markets on cost-competitive terms that India’s primary sector fundamentally cannot, at least until primary smelters complete a substantial renewable energy transition.
India’s secondary sector — scale, structure, and scrap dependence
India’s secondary aluminium sector has grown substantially over the past two decades, tracking the rise of India’s automotive, construction, and electrical manufacturing industries that generate both the demand for aluminium products and the end-of-life scrap that feeds secondary production. The sector today contributes approximately 40% of India’s total aluminium supply — a meaningful share that reflects both genuine recycling activity and the structural reality that India cannot yet meet total demand from primary production alone.
The sector’s 2+ million tonne recycling capacity is dispersed across a large number of operators — many of them MSMEs concentrated in auto manufacturing hubs (Pune, Chennai, Ahmedabad, NCR), industrial corridors, and ports. The dominant product is casting alloy — specifically ADC12 type alloys used in automotive die casting for engine components, transmission housings, and structural parts. India’s automotive industry’s rapid growth has driven consistent demand expansion for casting alloys from secondary producers. Wrought aluminium alloys from secondary scrap (for rolled sheet, extrusions, and wires) are less commonly produced in India, reflecting the quality and contamination challenges of mixed post-consumer scrap streams.
The import dependency — approximately 85% of feedstock from abroad — is the sector’s defining vulnerability. India’s domestic aluminium scrap base is thin because most of India’s aluminium stock was produced in the 1990s and 2000s and has not yet reached end-of-life. Power sector aluminium (cables, conductors — approximately 48% of consumption) has a lifespan of 30 to 50 years. Transport aluminium has a 15 to 20 year cycle. Construction aluminium has a 40 to 60 year cycle. The domestic scrap pool will grow substantially through the 2030s and 2040s as these first waves of post-independence industrialisation-era aluminium reach end-of-life — but the near-term supply gap is real and deepening.
The CBAM pre-consumer scrap rule — an important nuance
The CBAM Omnibus simplification package (Regulation EU 2025/2083) introduced an anti-circumvention rule for pre-consumer scrap that has direct implications for India’s secondary aluminium sector. Under the original CBAM framework, scrap-based production was treated as having zero embedded emissions from the scrap input — because the upstream emissions of scrap production had already been attributed to the original product’s lifecycle. This treatment created a theoretical loophole: a secondary producer could purchase pre-consumer scrap (industrial off-cuts and process waste generated during primary aluminium production) from a coal-based smelter and declare zero embedded emissions, even though the scrap carried the carbon footprint of its high-emission origin.
The pre-consumer scrap rule closes this loophole. From 2026, embedded emissions from pre-consumer scrap must be included in the CBAM embedded emissions calculation. This means secondary producers using pre-consumer scrap from high-emission primary smelters must attribute a portion of those upstream emissions to their product. The rule specifically targets pre-consumer scrap — defined as process waste generated before a product reaches the consumer (off-cuts from rolling mills, casting shot, machining turnings from manufacturing operations).
Post-consumer scrap — metal recovered from products after they have reached the end of their useful consumer life (end-of-life vehicles, electrical cable, packaging, construction demolition material) — retains its favourable CBAM treatment. Its upstream embedded emissions were attributed to the original product when that product was manufactured and reported; the secondary producer’s calculation starts with the remelting energy only. India’s secondary sector should therefore actively differentiate its scrap sourcing — maximising post-consumer content (end-of-life vehicles, cable, demolition scrap) and minimising pre-consumer content from high-emission primary producers — to optimise its CBAM embedded emission profile.
| Scrap type | Definition | CBAM embedded emissions rule | CBAM cost implication |
|---|---|---|---|
| Pre-consumer scrap | Industrial process waste generated before consumer use: rolling mill trimmings, casting shot, machining turnings | Embedded emissions from scrap source MUST be included in SEE calculation from 2026 | If sourced from coal-based primary smelter, carries partial upstream emissions — higher SEE than post-consumer |
| Post-consumer scrap | End-of-life product material: automotive castings, wiring and cable, packaging, construction demolition | Upstream embedded emissions attributed to original product lifecycle; secondary producer’s SEE covers remelting energy only | Lowest possible CBAM embedded emissions — approximately 0.5–1.5 tCO₂e/t depending on electricity source used in remelting |
| Internal company scrap (same installation) | Scrap generated and consumed within the same manufacturing installation boundary | Already within the installation boundary; no separate attribution required | Effectively zero marginal CBAM cost within the installation |
CCTS for secondary aluminium — what the January 2026 notification means
The January 13, 2026 notification that added secondary aluminium to the CCTS marked the formalisation of India’s recycling sector into the compliance carbon market. Secondary aluminium producers now have legally binding GEI targets for FY 2025-26 and FY 2026-27 based on their FY 2023-24 baseline emission intensities.
The GEI baselines for secondary aluminium producers — typically 0.5 to 2.0 tCO₂e per tonne of aluminium produced — are dramatically lower than primary smelter baselines (13 to 21 tCO₂e/t). The absolute reduction required per tonne of output is correspondingly smaller: a 5% reduction from a 1.5 tCO₂e/t baseline requires achieving 1.425 tCO₂e/t — a reduction of 0.075 tCO₂e/t. For a secondary producer making 50,000 tonnes per year, this is 3,750 tCO₂e of required reduction — far smaller in absolute terms than a primary smelter’s obligation, but proportionally similar in effort.
The key compliance lever for secondary producers is electricity source. Remelting furnaces consume approximately 700 to 900 kWh per tonne — much less than primary smelting but still significant at scale. At India’s grid emission factor of 0.710 tCO₂/MWh, the electricity-related Scope 2 contribution for a secondary producer is approximately 0.50 to 0.64 tCO₂e/t. Switching to renewable electricity can eliminate this Scope 2 component entirely, bringing the producer well below its target and generating CCC surplus. Auxiliary fuel consumption in the remelting furnace (natural gas or LPG for heating) constitutes the remaining Scope 1 emission — typically 0.10 to 0.30 tCO₂e/t — which can be reduced through waste heat recovery and furnace efficiency improvement.
The Material Recycling Association of India (MRAI) has articulated a clear set of policy priorities for enabling the secondary aluminium sector to scale effectively: reduce import duty on aluminium scrap from 2.5% to 0% to ensure steady feedstock availability and competitive pricing; reduce GST on aluminium scrap from 18% to 5% or preferably 0% to ease liquidity pressure on MSMEs and encourage formalisation; and simplify TDS provisions on GST to support small recyclers. These asks reflect a fundamental structural tension: the secondary sector is policy-identified as a key decarbonisation pathway but is taxed in a way that makes its primary input more expensive than competing coal-based primary production. Removing the 2.5% import duty and the 18% GST on scrap would represent a direct state subsidy to circularity — the kind of policy alignment between fiscal incentive and decarbonisation that advanced economies have increasingly adopted.
Beyond policy advocacy, the sector’s growth is also supported by India’s accelerating auto sector transition. As India’s passenger vehicle fleet electrifies, the aluminium content per vehicle is increasing significantly — EVs use substantially more aluminium than internal combustion engine vehicles for battery housings, thermal management systems, and structural lightweighting. This growing aluminium intensity per vehicle will accelerate the volume of aluminium returning to the scrap stream in the 2030s and 2040s as EV fleets begin to reach end-of-life. Indian secondary aluminium producers who invest in the collection infrastructure, sorting technology, and quality systems needed to process this material today will be positioned to capture the higher-value aluminium scrap stream of the next decade.
India’s path to scaling secondary aluminium — the three imperatives
Formalising the collection and processing ecosystem
India’s aluminium scrap collection sector remains heavily informal. Itinerant scrap buyers (kabadiwalas), unregistered aggregators, and small smelters without proper radiation screening or material sorting capabilities dominate the domestic scrap chain. The informal sector creates challenges both for quality (mixed alloys, contamination, low purity) and for CBAM and CCTS compliance documentation (no verified emission data, no chain-of-custody records). Formalisation — through GST registration, radiation compliance certification, BIS quality standards, and integration with organised secondary producers — is the foundational prerequisite for India’s secondary sector to access premium EU markets at verified low CBAM costs. This is a medium-term structural investment, not an overnight regulatory fix.
Diversifying scrap sourcing away from EU dependence
With Europe supplying approximately 30% of India’s aluminium scrap imports and the EU actively reviewing whether to restrict scrap exports to protect its own recycling industry, India’s secondary sector faces a genuine supply security risk. The response is diversification: exploring alternative scrap sources in the Middle East (growing construction demolition), Southeast Asia (expanding manufacturing base), the US (large automotive scrap pool), Japan and South Korea (high aluminium stock density), and Australia. Bilateral agreements — including the India-Australia Economic Cooperation and Trade Agreement (ECTA) and the framework of the India-UK FTA — can facilitate scrap flows. The India-EU FTA concluded in January 2026 is directly relevant: securing explicit scrap exemptions from any future EU export control regime should be an Indian negotiating priority in the ECTA follow-on and bilateral trade discussions.
Moving up the value chain toward wrought alloys
India’s secondary sector is currently concentrated in casting alloys (ADC12 type), which can tolerate higher levels of mixed alloying elements in the scrap feedstock. Wrought aluminium alloys — used in sheet, extrusions, and high-strength structural applications — require tighter compositional control and correspondingly higher-quality scrap feedstock. Moving up to wrought alloy production from secondary sources requires investment in advanced sorting technology (sensor-based sorting, X-ray fluorescence alloy identification), alloy dilution capability, and certified quality management systems. Hindalco’s rolling operations at Hirakud and other facilities have begun integrating more secondary input — demonstrating that this transition is technically possible in the Indian context. Runaya Metsource’s 2025 launch of gas-atomised aluminium powder production in Jharsuguda — moving even further up the value chain into aerospace and advanced materials — points to the direction that India’s secondary sector can travel if investment and quality discipline are combined.
Frequently Asked Questions
Why does secondary aluminium use so much less energy than primary?
Secondary aluminium (scrap remelting) skips the Hall-Héroult electrolytic reduction step — the most energy-intensive stage of primary aluminium production, consuming approximately 14,000 to 15,000 kWh per tonne of metal. Scrap aluminium is already in metallic form and needs only to be melted (at approximately 660°C), which requires approximately 700 to 900 kWh per tonne — roughly 5 to 6% of primary’s energy requirement. This is why MRAI describes secondary aluminium production as equivalent to “importing free electricity into the country.”
How does the CBAM pre-consumer scrap rule affect Indian secondary aluminium producers?
From 2026, embedded emissions from pre-consumer scrap (industrial process waste) must be included in CBAM embedded emission calculations. A secondary producer using pre-consumer scrap from a coal-based primary smelter can no longer claim zero embedded emissions from that input — it must attribute a portion of the primary smelter’s upstream carbon. Post-consumer scrap (end-of-life vehicles, packaging, construction demolition) retains favourable treatment. Indian secondary producers should track their scrap sourcing by type and maximise post-consumer content to optimise their CBAM profile. This also makes domestic post-consumer scrap collection infrastructure an EU competitiveness investment.
When was secondary aluminium included in the CCTS?
Secondary aluminium was included in the CCTS GHG Emission Intensity Target Rules via the second notification issued on January 13, 2026, which covered 208 industrial units across petroleum refineries, petrochemicals, textiles, and secondary aluminium. The baseline year is FY 2023-24, with targets for FY 2025-26 and FY 2026-27. This notification brought a further 208 entities under mandatory CCTS compliance, bringing the total across all notified sectors to 490 entities.
Is secondary aluminium from India competitive in the EU market under CBAM?
Yes — dramatically more competitive than primary aluminium from India under CBAM. Secondary aluminium from post-consumer scrap carries embedded emissions of approximately 0.5 to 2.0 tCO₂e/t, compared to 13 to 21 tCO₂e/t for coal-based primary. At €80/tCO₂e EU ETS prices, secondary aluminium’s CBAM cost is approximately €20 to €50/t, versus €1,000 to €1,400/t for coal-primary. This makes secondary aluminium India’s most viable high-volume EU aluminium export product under the CBAM regime, provided the sector can verify its emission data and document its scrap sourcing to EU standards.