Overview
China’s national carbon emissions trading scheme (ETS) has extended coverage beyond the power-generation sector to include cement, steel and aluminium smelting—three of the most emission-intensive industries in the economy. With these additions, the number of covered emission-intensive sub-sectors rises to ten, and the scheme now oversees a far larger share of national CO₂ output. The move converts a previously power-only market into a genuinely economy-wide pricing mechanism and sends a stronger, more credible signal to heavy industry.
Background & Interpretation
1. Industry Context & Policy Landscape
Launched in 2021, the national ETS initially covered only fossil-fuel-fired power plants, about 5.1 billion tonnes of annual emissions. Cement, steel and aluminium were long deferred because of measurement complexity and the risk of squeezing strategically important sectors. Their inclusion follows the maturation of benchmark-based allowance allocation and completes the first phase of the “1+N” carbon-peaking policy framework. Crucially, the expansion also aligns domestic pricing with the EU’s Carbon Border Adjustment Mechanism (CBAM), which from 2026 begins financially charging embedded emissions in imported steel and aluminium—giving exporters a direct incentive to decarbonise.
2. Core Drivers & Underlying Mechanisms
The three sectors are structurally different. In cement, roughly 60% of emissions are process CO₂ from limestone calcination and cannot be eliminated by fuel switching alone. In steel, the blast-furnace route dominates and is carbon-intensive versus electric-arc-furnace scrap-based production. In aluminium, electrolysis consumes about 13,500 kWh per tonne, so decarbonisation hinges on green-power sourcing. The market allocates allowances against industry benchmarks rather than historical output, rewarding the most efficient plants and pressuring laggards. As free allocation gradually gives way to paid auctions, the marginal cost of carbon will be internalised into product pricing.
3. Value Chain & Competitive Impact
A credible carbon price reshapes competitiveness along the entire materials value chain. Low-carbon routes—green-hydrogen-based direct reduction, scrap-electric-arc steel, renewable-powered aluminium (so-called “green aluminium”) and alternative clinkers—gain a structural cost advantage. Downstream, carbon accounting, MRV (monitoring, reporting and verification), and product carbon-footprint labelling become embedded procurement requirements. This favours integrated players that can secure low-carbon power and feedstock, while raising the cost of capital for obsolete capacity.
Implications & Outlook
Expect accelerated retirement of sub-scale, high-intensity capacity and a wave of green-material investment. The convergence of the ETS with CBAM and with green-procurement rules means carbon intensity will increasingly determine market access, not just compliance cost. Over the 15th Five-Year period, allowance scarcity is likely to rise, pushing the effective carbon price upward.
Takeaways for Industry Participants
- Heavy-industry producers should build in-house carbon-data and MRV systems now, before audit requirements tighten.
- Prioritise the lowest-cost abatement levers: electrification, green-power procurement, and scrap utilisation.
- Exporters to the EU must quantify embedded emissions and prepare CBAM declarations.
- Investors and lenders should price transition risk into high-intensity assets.
This column compiles industry information and shares technical perspectives; it does not constitute investment advice.