Transparency in the Supply Chain
Chain of Custody
More and more companies are turning to renewable raw materials and recycled materials to make their products more sustainable. But customers, investors, and regulatory authorities expect transparent answers:
- Where do the materials come from?
- How are they processed?
- What proportion of sustainable raw materials is actually in the product?
Chain-of-custody (CoC) systems create this transparency. They provide credible proof of the use of sustainable materials and make supply chains verifiable. DFGE supports you in implementing all common models – from physical separation to controlled blending and mass balancing to certifications according to international standards such as ISCC PLUS, REDcert², and ISO 22095.
- Blogpost: Mass Balance & ISCC Plus
- Blogpost: New ISCC EU Mass Balance Guidance
- Blogpost: What is Book & Claim?
- Case Study: Klüber Lubrication
- YouTube: Mass balance accounting using the example of ISO 22095 and REDcert2
Chain of Custody – Overview of Models
- Physical Separation (Segregation): Sustainable raw materials are strictly separated.
- Controlled Blending: Sustainable and non-sustainable raw materials are combined in defined mixtures.
- Mass Balance: Sustainable raw materials are allocated to products on a mathematical basis.
- Book & Claim: Sustainability certificates are traded independently of the product.
How can DFGE help?
Together with our customers, we take one step at a time:
In Focus
Relevant Standards
ISCC Plus
- Internationally recognized system for organic and circular economy.
- Enables the use of sustainable, bio-based, and recycled raw materials.
- Supports mass balance, controlled blending, and physical separation.
REDcert²
- Specially developed for the chemical industry and plastics processing.
- Certification of sustainable products based on bio-based or recycled raw materials.
- Flexible application for mass balancing, controlled blending, or physical separation.
ISO 22095
- Framework standard for chain of custody that establishes uniform terms and requirements.
- Can be used regardless of industry
- Increases comparability and credibility between different systems.
- Ideal for companies that want to use multiple CoC models in parallel or harmonize them globally.
Your Advantages
Why DFGE on the Topic of Chain of Custody?
- All chain-of-custody models from a single source: Whether physical separation, controlled blending, or mass balancing—we provide comprehensive advice and find the right solution for your supply chain.
- Cross-standard expertise: Our experience with international standards such as ISCC PLUS, REDcert², and ISO 22095 ensures that you can always rely on standard-compliant and audit-proof processes.
- Practical implementation: We support you not only with the concept, but also with the operational implementation—from documentation to training your teams.
- Seamless integration into sustainability reporting: We link your chain of custody system to common reporting frameworks such as CSRD, GRI, or CDP, enabling you to create transparency and credibility for all stakeholders.
- Many years of sustainability expertise: As one of the leading sustainability consultants in the German-speaking world, DFGE combines expertise in climate accounting, supply chain management, and ESG strategy.
- Individual support: Instead of standard solutions, you receive a tailor-made approach that fits the requirements and structures of your company exactly.
