Meaning
Accounting method that tracks recycled resin volumes through the supply chain to validate the certified recycled content of moulded products. Injection moulders and brand owners use this verification system when physical separation of recycled and virgin materials is impossible. This audit is required for certified sustainable products.
Chain Verification
The process works by ensuring that the volume of certified recycled material purchased by a compounder matches the volume of recycled-grade products they sell. Third-party auditors review purchase invoices, batch records, and inventory logs to verify compliance. This audit ensures that no double-counting of recycled materials occurs in the supply chain.
Run a mass balance audit regularly to maintain the integrity of recycled-content claims.
Sourcing Protocol
Procurement departments must source certified resins from suppliers that hold a valid mass balance certificate. Such certification allows companies to market their moulded components as containing a specific percentage of recycled content, even if the actual molecules in a specific part are a mix of virgin and recycled polymer. This approach allows factories to run existing tooling and machinery without modification.
Economic Penalty
Failing to pass this verification can result in the loss of environmental certifications and damage the brand’s market position. Customers are willing to pay a premium for certified sustainable parts, and losing this status can lead to lost contracts and financial penalties. Implementing rigorous internal tracking systems helps moulders avoid these costly audit failures and maintain compliance with international standards.
