English to French Marketing Business/Commerce (general) fournisseurs

"XXX and YYY request suppliers to comply with all of the laws/regulations, including those which are included in the 4th clause of this guideline, “Compliance”, and promote such CSR activities to their supply chain and consignment suppliers."

Je ne vois pas bien ce que signifie "consignment suppliers" et quelle est la différence entre ces derniers et la chaîne d'approvisionnement.