The 8× Carbon Price Gap: EU vs China as CBAM Enters Its Definitive Phase

In one line: EU ETS primary auction cleared at €86.05/tCO₂; the China national carbon market averaged CNY 83.86/t. That is roughly an 8× gap — and a rule now exists that turns the gap into real cost.

1. Two numbers, same week

EU side. On 24 September 2026, the EEX primary auction (EU CAP3, 2.79 Mt traded) cleared at €86.05/tCO₂, up €0.52 (+0.61%) from the previous auction, with bids ranging €80–88 and a 1.5× cover ratio. (Source: EEX Emission Spot Primary Market Auction Report — EEX is the EU's designated common auction platform, i.e. public market infrastructure)

China side. From January to August 2026, the China national carbon market closed within a CNY 72.5–99.69/t range, averaging CNY 83.86/t — up 14.41% year-on-year (from CNY 73.3), with traded volume up 46.53% over the same period. (Source: MEE Academy of Environmental Planning data, via China Economic Net)

Do the arithmetic. At roughly 1 EUR ≈ 7.8 CNY 【estimate — not an official FX rate】, €86.05/t is about CNY 671/t — approximately 8× the China national market average of CNY 83.86/t.

⚠️ These two figures are not the same price basis (an auction clearing price vs a secondary-market average). The division is used only to convey order-of-magnitude, not as an arbitrage calculation.

2. Why the gap matters this year

Because CBAM entered its definitive regime on 1 January 2026.

The pricing rule is the pivot: CBAM certificate prices are based on the auction price of EU ETS allowances — a quarterly average for 2026, switching to a weekly average from 2027.

In other words: every move in the EU carbon price translates directly into importers' compliance cost, and the pass-through becomes faster each year as the averaging window shortens.

Scope and threshold: CBAM currently covers cement, iron and steel, aluminium, fertilisers, electricity and hydrogen, plus certain precursors. Except for hydrogen and electricity, importers below a single 50-tonne mass threshold are exempt from the declarant requirement. (Note: the threshold applies to the EU importer — a non-EU supplier's own export volume below the threshold does not relieve it of cooperation obligations.)

The European Commission has stated that, once phased implementation completes, CBAM will cover more than 50% of emissions from sectors under the EU ETS.

3. The deduction clause: China's carbon price gains cross-border financial value

One provision deserves separate attention:

Where an importer can prove that a carbon price has already been paid during production, that amount may be deducted under CBAM.

The general form:

CBAM payable = (total embedded emissions − free allocation emissions) × certificate price − carbon price already paid in a third country

The significance of this clause tends to be underrated. It means China's carbon market compliance record — a carbon price voucher at CNY 83.86/t — is financially deductible in CBAM calculations.

Carbon price vouchers, verification data and emissions ledgers stop being merely "compliance paperwork" and become assets with cross-border financial value.

One distinction that must not be blurred: China's inclusion threshold is 26,000 tCO₂e of annual emissions (an emissions-scale criterion at the production end), while CBAM's is a 50-tonne import threshold (a mass criterion at the import end). They are not the same dimension and should never be conflated.

4. China's carbon market is expanding in parallel

The other side of the comparison is moving too.

On 20 March 2025, the Ministry of Ecology and Environment (MEE) issued its Work Plan for Extending the National Carbon Emissions Trading Market to the Steel, Cement and Aluminium Smelting Sectors (Huan Qihou [2025] No. 23). After the expansion:

• Covered key emitters rose from roughly 2,200 to about 3,500
• Covered emissions rose to about 8 billion tonnes, exceeding 60% of the national total
• The market now runs four sectors in parallel: power generation, steel, cement and aluminium smelting

On allocation: the 2024 vintage was allocated equal to verified actual emissions (no shortfall); 2025 and 2026 vintages are allocated on a carbon intensity basis tied to output; from 2027, sector-level allocation caps will be studied and progressively tightened.

On scale: as of 14 September 2026, cumulative traded volume on the national market exceeded 973 million tonnes, with cumulative turnover above CNY 66.8 billion. (Source: Shanghai Environment and Energy Exchange data)

5. What this means for exporters

Connect the three threads:

1. The carbon price gap is not merely a price difference — it is a cost-structure difference. An 8× order-of-magnitude gap does not automatically become an 8× cost, because CBAM prices only the portion above free allocation, and third-country carbon paid is deductible. But the direction is unambiguous: EU carbon cost is being institutionally attached to the import stage.

2. Deduction depends on data, not on intent. What reduces the bill is verifiable embedded-emissions data plus proof of carbon price paid. A company's data capability — its MRV system, verification reports, carbon price vouchers — maps directly onto money.

3. China's tightening allocation will raise the deductible amount — while raising domestic cost too. The progressive cap-tightening from the 2027 vintage implies an upward trend in China's carbon price. For exporters this cuts both ways: a larger deduction, but also a heavier domestic compliance cost.

6. What this means for recycled materials (inference flagged)

One boundary first: carbon black and rubber products are not currently among CBAM's six covered product categories.

But two things have spillover effects for the recovered carbon black (rCB) sector:

1. Carbon has been formally introduced as a cost item at the EU import stage — establishing the fact that, in the EU market, carbon carries a price.
2. Third-country carbon paid is deductible — giving producers' carbon pricing records cross-border financial value for the first time.

As to whether the Commission's stated expansion ("more than 50% of EU ETS sector emissions once phased implementation completes") will extend to carbon black and rubber products — there is no published timetable 【inference】.

For rCB the underlying logic does not change: in a regime that prices carbon cost, low-carbon attributes get priced. When that pricing reaches this specific category depends on the EU's expansion pace, not on our assessment.

Sources

Data floor: every figure in this article is drawn from public government / international organisation / regulated exchange / official standards body sources. No commercial data-vendor sources are used.

Level key: L1 = government / international organisation / customs; L2 = international standards body / regulated exchange / state think-tank; L3 = industry association / corporate self-disclosure / official-media citation (grey — usable with original source named); L4 = commercial data vendor / self-media (prohibited by project policy). ·cited = original source compliant, relayed by official media, with the originating body named.

Labels: 【estimate】 = derived from public data, not officially published; 【inference】 = directional judgement from public information, no confirmed timetable. Confidence A = primary official source; B = authoritative secondary citation.

Data current as of 2026-10-10. Each record is retrievable by record ID via the site's data index or the MCP endpoint.