How CBAM works: Its definitive regime began on 1 January 2026. EU importers exceeding the 50-tonne threshold for covered goods must become authorised CBAM declarants and acquire certificates for embedded emissions. The initial scope covers cement, iron and steel, aluminium, fertilisers, electricity and hydrogen, plus certain precursors and downstream goods.
In effect, certificates are intended to equalise the carbon cost with the EU ETS, while accounting for a demonstrably paid carbon price in the country of origin. The Commission published certificate prices of €75.36 for Q1 2026 and €75.28 for Q2 2026.
Why the sectoral concern is acute: Steel and aluminium are directly covered and are emissions-intensive, so their exports face both an added carbon-cost exposure and compliance burdens—emissions measurement, verification, documentation and potentially reliance on EU default values. This is especially material for Indian, South African and Chinese producers that sell carbon-intensive products into the EU. A policy assessment cited by the World Bank estimates CBAM could affect $16 billion of developing-country exports annually, though that is not a country-specific estimate for those three states.
Revenue and climate-finance objection: There is no single reliable 2030 number. Published estimates vary substantially: one estimate puts annual revenue at €1.5 billion from 2028, another at roughly €2.1 billion annually, and a 2030 range under the current scope at €5–9 billion. What is clear is that CBAM receipts are designed to accrue to the EU budget.
BRICS’ political objection is that funds collected from developing-country exporters should support their mitigation and industrial transition rather than become general EU-budget revenue.
Revenue will ramp up over time: CBAM’s financial effect is phased in as EU ETS free allowances are withdrawn; the applicable CBAM factor is 2.5% in 2026, 5% in 2027, 10% in 2028, 22.5% in 2029 and 51.5% in 2030. That phasing makes precise 2030 revenue highly sensitive to carbon prices, import volumes, verified emissions and changes in coverage.
WTO dispute risk: Diplomatic condemnation does not itself create a WTO case. A formal challenge would require a member to request consultations and then, if unresolved, seek panel proceedings. The legal contest would likely focus on whether CBAM discriminates in fact against imports or foreign production methods, versus the EU’s anticipated defence that it mirrors a domestic carbon cost, allows credit for carbon prices already paid abroad, and pursues environmental objectives under GATT exceptions. The available material indicates that South Africa has signalled interest in a complaint and that India, China and Brazil have raised legal/equity concerns, but it does not substantiate that China has filed a CBAM-specific WTO dispute.
Trade diplomacy does not remove litigation risk: EU trade negotiations and agreements can create venues for consultation, technical cooperation and negotiated adjustment, but they do not prevent a WTO challenge. The most defensible assessment is therefore: escalation is plausible, particularly as certificate liabilities grow, but a coordinated BRICS WTO case is not established by the evidence cited here.
Scale of BRICS: The expanded group’s importance makes the conflict politically consequential because it combines major commodity, metals and manufacturing exporters. I do not have sufficiently verified evidence in the retrieved sources for a precise percentage of global trade, so no exact figure should be treated as established here.