This standard provides a harmonised methodology for calculating GHG emissions from the ferro-alloys industry based on the mass balance approach . It also provides key performance indicators over time of ferro-alloys plants. It addresses the following direct and indirect sources of GHG: ¾ð - Scope 1 Direct GHG emissions from sources that are owned or controlled by the company, such as emissions result from the following sources: ¾ð - Smelting (reduction) process: ¾ð - Decomposition of carbonates inside the furnace ¾ð - auxiliaries operation related to the smelting operation (i.e. aggregates, drying processes, heating of ladles, etc.). ¾ð - Scope 2 Indirect GHG emissions from: ¾ð - the generation of purchased electricity consumed in the company s owned or controlled equipment