The impact of CBAM on cost bases depends on several factors including material cost, product emissions, and the cost of the CBAM certificates (varying with market price of EUAs and country of production). As in the illustrative (non-exact) example opposite, the overall cost phased in. In the example - in this case looking at steel - CBAM Exact impact is difficult to quantify, as it depends on assumptions of product, cost of EUAs). The assessment also assumes that current To illustrate the sensitivity to assumptions, if steel cost is lower (e.g. E400/t) and the CBAM certificate price higher (e.g. E110/t), the CBAM associated share of cost would be +54% by 2034.