When the certificates are being created, the farmer has to pay commission to the 3rd ISO cerfification party . This price is not fixed yet. If the farmer wishes to sell the certificates through Commoditrader, the farmer has to pay a commission for this service.

The farmer can also choose to sell the certificates himself. However, it is recommended that the farmer sells through Commodicarbon, because in this way the farmer is sure that all his CO2 certificates will be sold at the same time .