In Jiaxing, a manufacturing town on the outskirts of Shanghai, 400 steel industry executives and engineers gathered last November to tackle an enormous task: weaning the world’s biggest steel producer off coal-fired blast furnaces. The subject is of burning political urgency. The Chinese government is trying to decarbonise a sector that relies heavily on coal — and quickly — or risk losing its dominance as countries with ambitious climate goals look elsewhere.The source of China’s predicament can be traced to Europe where the EU — one of its key export markets — has imposed the world’s first ever tax on emissions of carbon-intensive imports starting with cement, iron, aluminium, fertilisers, electricity, hydrogen and, of course, steel. The levy will come into force in 2026, but the transition is already under way. But there is a deeper concern. The EU’s decision could set into motion a wave of countries enforcing similar measures, and on a wider variety of products, delivering a devastating collective blow to Chinese industry. In December, the UK announced the introduction of its own carbon import tax by 2027. “Companies are watching this keenly,” says Gao Liqun, partner in carbon tariffs research for Deloitte China. “They are concerned that there will be many other countries — [most importantly] the US and Japan — taking on similar measures.”One guest at the Jiaxing event, organised by the state-owned Zhejiang Society of Metals, was feeling optimistic, however. Tan Weihan, chief executive of Xi’an Xinda Electrical Furnace Works, sees the challenge facing Chinese steelmakers as an opportunity for companies like his that are helping to create cleaner steel. “The government is signalling the need for large-scale research and industrial co-operation,” says Tan. “We’re talking to the government and we hope to receive support.”For Europe, the introduction of the Carbon Border Adjustment Mechanism (CBAM), has been heralded as a much-needed leveller for European companies in an increasingly fractious landscape for global trade. But it is also a major step towards broader carbon pricing, a measure policymakers and environmentalists say is needed to cut emissions to 1.5C, the ideal goal of the Paris agreement.Western politicians are acutely concerned about an over-reliance on China for the raw materials necessary to support the green transition. Steel, among the world’s most commonly used metals, is one of the most politicised sectors in that debate.The EU, which is facing pressure from member states to regain its competitive edge, wants to ensure that the billions of euros being invested by steel heavyweights such as ArcelorMittal and Thyssenkrupp into their European plants to reduce emissions will not be undercut by low-cost competitors using dirtier energy sources.Yet unease over the first measures of its kind abounds from all sides. Some European producers themselves worry that CBAM could lead to higher costs that will erode the region’s appeal and their own. Further afield, officials and executives in countries including China, India Turkey and Brazil fear that CBAM will disrupt trade flows and create a two-tier system, with products made using clean energy sent to the EU and those produced with coal power being exported to poorer countries with less stringent climate laws.To that end, CBAM offers an early preview of what happens when the race to decarbonise is taken at different speeds by different countries.You are seeing a snapshot of an interactive graphic. This is most likely due to being offline or JavaScript being disabled in your browser.The EU defends its policy as a necessary measure to drive down emissions. But for Beijing, CBAM is an example of green protectionism, says Qin Yan, a carbon analyst at London Stock Exchange Group. “The overall trend is towards trade fragmentation because of concern about supply-chain risks: everyone is afraid of being dominated by China,” she adds. “The carbon pricing mechanism gives Europe an opportunity to reshore its manufacturing.”This shift could accelerate the deepening wedge between the Chinese economy and those in the west — and pave the way for retaliatory measures. The cost of pollutingPersuading its trade partners of the benefits of the carbon border tax has required some effort on the EU’s part. To win support, Brussels has been hosting a series of seminars and outreach sessions. At one such gathering of Chinese executives and officials in Beijing last November, the EU’s climate commissioner Wopke Hoekstra pressed his case: “You will see that CBAM, regardless of what people try to push for, is not a ‘penalty’ for importers to the EU, but an incentive for decarbonisation.”He urged any Chinese exporters present “to take mitigation action and get ready to report the carbon content of their products”.For EU officials, CBAM is the logical development of the bloc’s emissions trading system (ETS), through which European companies buy permits corresponding to the number of tonnes of Co2 they emit. But since its introduction in 2005, the carbon price — which fluctuates according to demand — has steadily increased. As the cost of polluting rises, EU-based manufacturers already facing high energy prices worry that their greener, more expensive production will be undercut by low-cost imports from countries using coal power for fuel. EU heavy industries currently receive some free ETS permits in help them stay competitive but these will be wound down in coming years.You are seeing a snapshot of an interactive graphic. This is most likely due to being offline or JavaScript being disabled in your browser.“The reality is that we pay for steel at a much higher price than some of our competitors,” says Luca de Meo, chief executive of French carmaker Renault. “We have seen a rise in the price of steel which is probably 8 to 10 per cent the cost of the car in Europe.”Assofermet, the Italian steel industry body, warned at a conference in September that CBAM could push up the price of steel by 15 per cent.But EU policymakers argue that the measure is essential to prevent “carbon leakage”, the risk that EU companies will outsource carbon intensive production elsewhere.As she sought to win over business, European Commission president Ursula von der Leyen said last year that “making sure that a price is paid for the embedded carbon emissions generated in the production of certain goods imported into the EU” would mean their carbon price matches that of domestic production “ensuring that the EU’s climate objectives are not undermined”. The seven sectors that policymakers have singled out as most at risk of carbon leakage will be subject to CBAM first, although the EU expects that the levy will ultimately cover a much larger number of industries.Importers will be charged for the carbon emissions related to the production of their goods according to the EU’s ETS price with first payments due to be made in 2026. During a trial period that started in October, companies must report their emissions to the customs authorities, but will not be taxed. The first reports must be made in January 2024 and those that do not report will face a small fine. Countries that have a carbon price similar to that of the EU will either be exempt or will be charged relatively less according to their domestic carbon price.A steel plant in Shanxi province, China. Beijing is trying to decarbonise the sector, which relies heavily on coal, or risk losing its dominance as countries with ambitious climate goals look elsewhere More