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Recycled content in plastic packaging

Verifying Recycled Content in Plastic Packaging Sourced from China

The EU PPWR requires verifiable proof for post-consumer recycled plastic content. Learn how to verify raw materials, chain of custody, and factory dosing in China.

Verifying Recycled Content in Plastic Packaging Sourced from China

Regulation (EU) 2025/40 (PPWR) establishes binding minimum quotas for post-consumer recycled (PCR) content in plastic packaging starting in 2030. European importers must ensure that packaging imported from Chinese suppliers complies with these legal minimums.

Post-consumer recycled (PCR) plastics originate from household or commercial end-user waste streams. Post-industrial recycled (PIR) materials consist of factory production scrap and do not qualify as PCR under PPWR rules. Standard EN 15343 specifies the requirements for recycling traceability and conformity assessment in plastic processing. ISO 22095 defines standardized chain of custody models, including mass balance control.

Which documents are required to prove recycled content for EU customs?

EU customs authorities require verified chain-of-custody documentation rather than simple supplier self-declarations. Importers must present documentation covering every stage of raw material processing.

The required compliance documentation includes:

  1. Transaction Certificates (TC) issued under recognized standards such as the Global Recycled Standard (GRS), detailing specific batch volumes.
  2. Certificates of Conformity based on EN 15343 or RecyClass auditing, verifying the processor's supply chain management.
  3. Technical data sheets and weighing records for input regranulate from raw material suppliers.
Document TypeIssuing BodyFunction in Import Process
Self-DeclarationChinese ManufacturerInsufficient for customs clearance
Transaction Certificate (TC)Certification Body (e.g., GRS)Verifies volume for a specific shipment batch
Certificate of ConformityAudit Organization (EN 15343 / RecyClass)Confirms supply chain compliance at processing plant

Can laboratory analysis determine the exact PCR percentage?

Laboratory testing cannot measure the exact numerical percentage of PCR material in a finished polymer product. Chemical and thermal analytical methods provide physical indicators of recycled content and thermal degradation.

Fourier-Transform Infrared Spectroscopy (FTIR) identifies foreign polymer contaminants and additives typical of recycled streams. Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) reveal melt behavior anomalies caused by mixed resin streams. Melt Flow Index (MFI) measurements indicate molecular weight variations caused by prior processing cycles. These analytical parameters are evaluated during a sample check for €149.

How is compliance verified during a factory inspection in Guangzhou?

An on-site factory inspection verifies that physical production processes match the supplier's written documentation. Physical inspection confirms whether declared PCR quantities are actively dosed into production lines.

During a supplier visit in Guangzhou for €299, the following areas are inspected:

  • Raw Material Storage: Cross-checking batch numbers and labels on resin bags against supplier delivery notes.
  • Storage Management: Visual inspection confirming strict physical separation between virgin resin and PCR granulate.
  • Dosing Equipment: Inspection of gravimetric or volumetric mixing equipment on active injection molding or extrusion lines.
  • Production Logs: Verification of internal weighing records against active manufacturing orders.
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Decision frame for your import

The existing recycled-content article already had a useful inspection outline, but it was shorter and did not present the evidence chain as a complete working process. For PCR sourced from China, the claim must be traceable from feedstock to finished packaging. Post-consumer and post-industrial material must not disappear into one undifferentiated percentage.

Data and document pack per item

Assign every regrind, compound or film batch a supplier, quantity, material type and document. The file should contain at least BOM, delivery note, weighing record, transaction or certificate number, test report, production lot and approved sample. For mass-balance models, record the allocation method and make clear where physical segregation is not claimed.

  • Show PCR, PIR and virgin material separately in the BOM.
  • Trace batch and transaction number from resin to packaging lot.
  • Reconcile weighing and dosing records with the production order.
  • Use laboratory indicators as plausibility checks, not as an exact percentage measurement.

A verification workflow from supplier to import

  1. Before ordering, define material, target share and permitted chain in writing.
  2. Tie recycler and processor documents to the same batch.
  3. At sample check, record thickness, weight, colour and material combination.
  4. At factory review, reconcile storage, dosing equipment and production log to the batch.
  5. Before shipment, sample the series lot and hold deviations.

A worked decision example

A plant declares 30% PCR but supplies only a certificate excerpt from the recycler. The delivered quantity is not enough for the order. Reconciling delivery note, weighing book, dosing log and BOM exposes the gap. The importer requests a corrected allocation or holds the packaging instead of carrying an unchecked percentage into the file.

Common failure modes and countermeasures

  • Counting PIR as PCR — document waste origin and material definition separately.
  • Accepting a certificate with no batch reference — link transaction and production lot.
  • Presenting FTIR/DSC/TGA as an exact percentage measurement — use them as indicators.
  • Checking the sample but not the production blend — add dosing and lot checks before shipment.

Message to send to the Chinese supplier

Make the request batch-specific for the packaging and regranulate supplier:

For each production lot, please state PCR/PIR/virgin material, quantity, type, upstream supplier and document number. Please send weighing, dosing and production records tied to the same batch as our approved sample. Please notify us before production of any formula, recycler or mass-balance change.

Release criteria for the file

A release is defensible only when four questions can be answered from the same record: What exactly was checked? Which SKU, batch, route or period does the statement cover? Which primary source or supplier document supports it? Who assessed the deviation and when is it reviewed again? Put those answers in the inspection report instead of marking a line only “passed”. Link the file to the order, sample and receipt. If evidence is missing, give the line an “open” status with an owner and due date. This keeps later corrections traceable and lets procurement distinguish evidence from assumptions.

Follow-up and recheck

Approval is not the end of the check. Set a trigger for the next review: a new batch, material or process change, an authority notice, a price or lead-time deviation, or the scheduled review date. A short monthly reconciliation of orders, supplier data and received goods catches drift earlier than an annual catch-up. When a deviation appears, hold the affected batch, obtain a written supplier response and reopen approval only after a documented corrective record.

What fixed-price verification services support EU importers in China?

Direct physical verification bridges the gap between supplier claims and European regulatory requirements. Inspection services are provided at fixed prices without percentage-based commissions.

The following inspection options are available:

  • Remote Check (€79): Distance verification of business licenses, corporate records, and supplier certificates.
  • Sample Check (€149): Physical examination and test report evaluation of pre-production samples.
  • Pre-Shipment Inspection (€249): Quality and specification checks on finished goods prior to container loading.
  • Supplier Visit (€299): On-site inspection of manufacturing facilities, material storage, and dosing processes in the Guangzhou region.

These inspection services provide objective documentation and physical verification. Services do not include legal advice, operate as a certified QC institute, or act as a sourcing agency.

Sources

FAQ

Does post-industrial recycled (PIR) plastic count toward EU PPWR quotas?

PIR material from factory scrap does not count toward post-consumer recycled (PCR) quotas under Regulation (EU) 2025/40. PPWR targets strictly require plastic derived from post-consumer waste streams.

Can a laboratory test determine the exact percentage of PCR in a finished plastic product?

A single laboratory test cannot determine the exact numerical percentage of PCR content. Analytical methods such as FTIR, DSC, TGA, and MFI detect structural irregularities and thermal degradation, but cannot calculate exact mixing ratios.

Is a general GRS certificate from a Chinese factory sufficient for EU customs?

A general factory-level GRS certificate is insufficient for customs compliance. Customs authorities require shipment-specific Transaction Certificates (TC) that account for the exact volume of recycled material used in that production batch.

How much does an on-site factory visit cost in the Guangzhou area?

An on-site factory visit in the Guangzhou region costs a fixed price of €299.

Can a laboratory test prove the exact PCR percentage?

A single test normally cannot prove the exact PCR percentage in finished packaging. Chemical and thermal methods provide indicators; the quantity chain remains central.

What should I retain for mass balance?

Keep the model, allocation method, input and output quantities, certificate or transaction numbers and approved packaging version.

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