Meaning
Chain of custody models decouple environmental attributes from the physical flow of materials in a supply chain. Administrative book and claim accounting allows companies to support sustainable production without the logistical cost of separate storage. Use of this system ends at the point where the environmental credit is retired against a specific product volume.
Credit Administration
Registry systems track the generation and transfer of certificates between producers and buyers. Digital book and claim accounting ensures that each unit of sustainable resin is only claimed once. Verification audits confirm that the volume of credits issued matches the volume of bio-based or recycled feedstock entering the plant.
Sourcing Flexibility
Moulders avoid the infrastructure investment required for physical segregation of virgin and recycled streams. Because book and claim accounting treats the attribute as a tradable commodity, a factory can purchase credits to meet sustainability targets while using standard resin in the machines. This removes the risk of contamination in high-precision medical or food-contact moulds.
Logistics costs drop because the physical material travels the shortest distance while the credit moves digitally. Financial resources are directed toward the most efficient production sites rather than being spent on redundant silos or separate transport lines.
Attribute Validity
Final consumers receive a claim based on the total investment in sustainable production. Reliable book and claim accounting maintains market trust.
