China Expands Its Carbon Market, but the Real Test Comes in 2027

China’s national carbon market just did something it had never done before. In a single regulatory step, its coverage jumped from around 40% of the country’s emissions to more than 65%, a shift with no precedent in the system’s four-year history.

For four years, the national ETS touched only power generators. Steel mills, cement kilns, and aluminium smelters sat outside formal carbon compliance entirely. The expansion that took effect through March 2025 ended that arrangement, and 3,680 entities now carry allowance obligations.

The timing is deliberate. Phase 2 benchmark tightening is scheduled for 2027, and the current 2024-2026 window is explicitly the data-collection and familiarisation runway before costs turn real. What matters now is what the China carbon market expansion actually means for the industries and supply chains wired into these sectors, and whether the 2027 pivot delivers the emissions pressure its architecture promises.

From single-sector experiment to economy-wide architecture

For its first four years, the national ETS was a power-sector instrument and nothing more. From launch in 2021 through 2024, it covered roughly 2,087 entities, all generators, accounting for approximately 40% of national emissions. Heavy industry watched from outside the fence.

Then the fence moved. The expansion added between 1,334 and 1,500 industrial entities across three sectors: 962 cement producers, 232 steel producers, and 97 aluminium smelting plants. That brought in roughly 3 billion tonnes of additional CO2e coverage in one motion.

The consolidated 2026 figures make the scale legible. According to Xinhua and MEE data published on 15 September 2026, the system now covers 3,680 key emitters and approximately 8.3 billion tonnes of CO2, more than 65% of China’s national emissions.

The jump from 40% to 65% in one regulatory step tells you China has stopped running a targeted pilot and started setting the carbon price signal for heavy industry at scale. Any company exposed to Chinese steel, cement, or aluminium, whether as customer, competitor, or raw-material supplier, now operates in a market where carbon obligations sit inside the cost structure of its counterparties. That is a material shift, not a theoretical one.

The regulatory instruments behind the expansion

Two instruments formalised the change. State Council Order No. 775, in force from May 2024, established the national legal basis for carbon trading. MEE Notice 2025-23, issued on 20 March 2025, brought steel, cement, and aluminium formally into the system, with the qualifying line set at 26,000 tonnes of annual direct CO2e emissions.

Two later documents completed the framework for the current phase. The allocation plan released on 17 November 2025 set allowance rules for the new sectors, and the cap-and-allocation document known as Guohuan Gui Qihou [2026] No. 1, issued on 2 September 2026, extended the framework into the first full compliance year for steel, cement, and aluminium. The architecture is now formally complete for the phase that runs to 2027.

China’s dual-control framework, which separately targets both energy consumption intensity and total energy volume, sits alongside the ETS as a parallel compliance obligation for heavy industry, and the interaction between the two mechanisms shapes which efficiency investments actually reduce a plant’s regulatory burden.

[Guohuan Gui Qihou [2026] No. 1](https://www.mee.gov.cn/xxgk2018/xxgk/xxgk03/202609/t20260902_1052631.html), the MEE’s official allocation document issued on 2 September 2026, sets the allowance totals and distribution methodology for steel, cement, and aluminium smelting through the first full compliance year for those sectors, completing the formal regulatory architecture for the current phase.

What the ETS actually costs these industries right now, and when the real bill arrives

The current cost picture reads in two acts. Act one is the present, where free allocation softens the immediate hit. Act two is 2027, where that softness hardens into genuine deficits. The gap between the two is the story that matters for capital planning.

Allocation follows an output-based, intensity-benchmark model. Firms receive free allowances proportional to production and benchmarked emissions intensity, so efficient producers can hold surplus allowances while laggards face shortfalls they must cover by buying more.

The phasing determines when that shortfall becomes a real cash problem.

• 2024: Free allowances equalled verified emissions. Net cost was effectively zero, by design.
• 2025-2026: Allocation shifted to benchmark-relative adjustment, rewarding efficiency and penalising deviation from sectoral intensity, alongside rising prices.
• 2027 onward: Benchmarks tighten, deficits emerge for less efficient operators, and partial paid allocation moves into official discussion.

Prices are already high enough to matter. According to MEE data reported on 16 September 2026, the average CEA price for January to August 2026 was 83.86 CNY/t, within a range of 72.5 to 99.69 CNY/t, with peak trades near 100 CNY/t in late August. Trading volume rose 46.53% year-on-year.

The CEA price trajectory through 2025 and into 2026 reflects markets front-running the post-2027 benchmark compression, with quarterly averages rising steadily as industrial compliance obligations became concrete rather than prospective.

The clearest single signal The Jan-Aug 2026 average of 83.86 CNY/t is up 14.41% on the 2025 average of 73.3 CNY/t. That price rise is the market already pricing in the post-2027 benchmark tightening, before it has formally arrived.

Here is what that tells you. At an average near 84 CNY/t and peaks touching 100, carbon is already large enough to shift the competitive position of any plant sitting well above its sectoral benchmark. And with the Phase 2 transition scheduled for 2027, companies that have not invested in efficiency now have less than 18 months before that pressure moves from gradual to structural.

The two-phase design is the critical variable for any capital decision connected to these industries. The current window is a compliance runway, not a cost plateau. Reading when the benchmark mechanism activates is the difference between treating carbon as a manageable overhead and treating it as a structural input cost that decides which assets stay viable.

How the ETS is reshaping competitive position across steel, aluminium, and cement

The mechanism is the same across all three sectors: intensity benchmarks reward efficient producers and punish laggards. What differs is which production route sits on which side of that line, and the direction of pressure varies sharply by sector.

In steel, intensity benchmarks are structurally easier to meet for electric-arc furnaces, which run on scrap, than for the blast-furnace and basic-oxygen-furnace complexes that depend on iron ore and coking coal. Post-2027 tightening is expected to widen that gap, and EU CBAM exposure amplifies it for export-oriented mills.

Aluminium carries a distinct feature. Its ETS obligations cover CO2, CF4, and C2F6, meaning smelters face pressure not only on energy use but on anode-effect reduction and pot technology. That coverage of process gases, not just fuel emissions, is the detail that tells you the system is built to reach deeper than fuel switching alone. It pushes demand toward high-quality alumina and specific process equipment rather than raw bauxite.

Cement is simpler in scope, covering CO2 only, but the benchmark logic still bites. Low-clinker cement products are advantaged, while high-clinker traditional routes carry a structural cost disadvantage as benchmarks compress.

For a mining or materials company supplying into these sectors, the ETS is now a forward signal about which production routes attract capital and which face stranded-asset pressure. The read for scrap, high-quality alumina, and low-clinker inputs is positive. The read for coking coal in integrated steel and for high-clinker cement routes is structurally cautious. One caveat holds across all three: indirect emissions from purchased electricity are excluded from industrial compliance accounts, so power-related decarbonisation is only partially incentivised by the ETS alone.

The EU CBAM interaction: double exposure for Chinese exporters

Chinese steel and aluminium exporters now sit under two carbon regimes at once. They face domestic ETS compliance at home and the EU’s Carbon Border Adjustment Mechanism (CBAM) on embedded carbon when selling into the European Union.

The two are linked. Tighter Chinese benchmarks and higher CEA prices narrow the gap between domestic and EU carbon costs, which in turn reduces the CBAM charge applied at the border. Domestic ETS stringency is therefore not just a compliance question; it is a direct trade-cost lever for export-exposed producers, which is what makes China’s design decisions a matter of international commercial consequence rather than domestic policy alone.

The 2027 full-sector target: petrochemicals, aviation, and the environmental effectiveness debate

The next expansion is already signalled. Chinese authorities intend to bring all major industrial sectors into the mandatory system by 2027, with several industries named in the pipeline.

• Petrochemicals and chemicals: heavy process and fuel emissions across production.
• Papermaking: energy-intensive processing.
• Civil aviation: wide emissions scope and international complexity.

Minister of Ecology and Environment Huang Runqiu set the tone at the China Carbon Market Conference in Wuhan in September 2026.

The clearest official signal of post-2027 ambition Minister Huang Runqiu indicated plans to strengthen the carbon market’s emissions reduction function, broaden the range of tradeable products and market participants, and deepen international collaboration.

The forward direction is clear. Whether it delivers on its environmental promise is genuinely contested.

The sceptical case is straightforward. Between 2024 and 2026, the three industrial sectors receive free allowances for all their emissions, with no absolute cap on the total. That design has not yet demonstrated it can guarantee aggregate reductions, and weak penalties plus live data-quality concerns mean firms can still treat the obligation as a soft constraint. This is the world’s largest carbon market operating without a fixed cap.

The China-Germany ETS comparative analysis published in July 2025 documents how China’s intensity-based system, operating without an absolute emissions cap, produced only moderate intensity reductions in the power sector during its first compliance cycle, providing the empirical baseline against which post-2027 benchmark tightening will need to be measured.

The cautious-optimist case runs the other way. Bringing more than 65% of national emissions under a unified measurement, reporting, and verification framework is the prerequisite for the tightening that will actually matter. And the 14.41% year-on-year price rise suggests the market is already embedding forward expectations of post-2027 benchmark compression. Early EU ETS phases used generous free allocation too, before benchmark tightening and auctioning delivered real cuts.

The EU ETS reform trajectory offers a useful precedent for reading China’s phasing logic: early EU phases used generous free allocation before benchmark tightening and auctioning drove real reductions, and the sequence of policy decisions that produced that shift is instructive for assessing whether China’s 2027 pivot follows a similar path.

The tension does not resolve neatly, and it should not be forced to. Whether 2027 delivers depends almost entirely on decisions not yet made: how aggressively benchmarks tighten, whether paid allocation arrives, and whether enforcement closes the data-quality gaps. All of this sits against China’s stated goals of a carbon peak before 2030 and neutrality before 2060. For any company making multi-year capital decisions in or adjacent to these sectors, 2027 is not a guaranteed cost event. It is a conditional trigger.

What the 2027 pivot means for capital decisions in connected sectors

Two variables determine whether this system becomes a structurally significant cost factor after 2027, and both are worth tracking rather than predicting.

The first is benchmark tightening. If Phase 2 benchmarks compress aggressively from 2027, deficits for high-intensity plants become real cash outflows, and the competitive landscape shifts. The second is enforcement credibility. Without strong verification and meaningful penalties, companies can continue treating ETS obligations as a soft constraint and defer decarbonisation investment.

The EU CBAM interaction sits underneath both as a secondary pressure, and it raises the stakes for export-exposed producers specifically. Under either scenario, companies with advanced low-carbon technology are structurally better positioned: they can operate within tighter benchmarks, potentially monetise surplus allowances, and carry lower CBAM exposure.

Industrial decarbonisation capital cycles in steel, cement, and aluminium typically run 8-15 years from investment decision to full operational impact, which is why the 2027 benchmark tightening, announced now, is already the relevant signal for asset allocation decisions being made in 2026.

For a reader connected to mining, materials, or energy, three near-term markers will answer the open question.

1. The 2027 allocation plan content. How aggressively benchmarks are set to compress is the single clearest signal of whether real emissions pressure is coming.
2. Any move toward partial paid allocation for industrial sectors, which would convert carbon from an opportunity cost into a direct cash outflow.
3. The timeline and design detail for petrochemical and aviation inclusion, testing whether the stated 2027 ambition holds.

The expansion is real and the coverage is historic in scale. But scale alone does not decide whether this market drives capital toward decarbonisation or simply maps the existing industrial structure. The 2027 allocation plan document, not the 2027 expansion announcement itself, is where that answer will land. The next 18 months of regulatory signalling will tell you which direction it is heading.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions.

Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors. Forward-looking statements regarding benchmark tightening and future policy are speculative and subject to change based on regulatory and market developments.