These sectors are currently affected by CBAM: Cement, Iron and Steel, Aluminium, Fertilisers, Hydrogen, Electricity.
Affected products are classified by its CN Codes (Combined Nomenclature). All goods that fall under CBAM are specified by the European Union in the Annex I of CBAM Implementation Regulation. To identify if your products fall under CBAM, you can compare the CN-codes of your products against the list of goods given in this Annex I (page 39).