The tax amount is relative and varies dependent on the carbon content of the imported product (such as where it is from, the production methods, and the carbon taxes paid by the foreign producer). As such, the most important piece of information that companies need to understand is how it compares with other firms both domestically and internationally in terms of emissions intensity. This is important because the tax is applied on a relative scale, comparing emissions from different countries and producers.
Products with carbon intensive manufacturing processes will require importers to pay a higher CBAM tax, resulting in higher prices for companies. For example, the E.U. imports 24% of its steel (2019), making it the world’s largest steel importer, and is primarily reliant on imports from China, Russia, and Turkey. However, China and Russia, along with Ukraine, South Korea, India, and Canada, tend to use blast furnace and oxygen furnaces, which have a much greater carbon intensity than steel from U.S. and Turkey, which use electric arc furnaces. The U.S. produces more than 70% of steel in electric-arc furnaces (see Figure 3) and accounts for around 5% of imports to the E.U.14
After CBAM is implemented, European manufacturers will encounter a higher cost for steel produced in blast furnaces than the same type of steel produced via electric arc furnaces. The same could be said for crude oil—some places, such as Russia, use extraction methods that are much more carbon intensive than the U.S. or Saudi Arabia.
In November 2021, U.S. steel executives came out in favor of a CBAM because it raises the costs of steel with high carbon emissions and as the U.S. has relatively lower carbon emissions in their steel manufacturing, the U.S. steel industry is aided by the CBAM tax.15
While some countries will benefit from CBAM, others will face negative impacts. E.U. producers will benefit from the CBAM tax. The U.S. will largely remain unscathed in terms of total exports, though chemicals exports would fall by 0.4%. The most negatively impacted countries would be in the Middle East and North Africa (MENA), China, and Ukraine. Chemicals was the most impacted sector with exports reduced at levels ranging between 1% and 4%. Iron and steel were also heavily impacted in India with reductions of almost 6%.16