List with names and addresses of suppliers and recipients of sustainable products.
Contracts with relevant subcontractors/service providers, suppliers and recipients of sustainable products.
Sustainability Declarations, weighbridge tickets, bills of lading or other documentation for all incoming and outgoing sustainable materials.
Quantity bookkeeping for sustainable and non-sustainable material and, if applicable, a mass balance calculation.
In the case of individual GHG calculations, the GHG calculation itself as well as the input data used for the calculation.