Perstorp Backs EU Mass Balance Rules for Traceable Chemical Feedstock Claims

The European Union has adopted the first harmonized definition and calculation rules for mass balance accounting under the Single-Use Plastics Directive, setting requirements for chemical and physical traceability. The rules cover chemical traceability, no overcompensation, site-level physical traceability, and a fuel-use exclusion. Perstorp says its Traceable Mass Balance approach, supported by ISCC PLUS-certified products, aligns with the framework, which it sees as a precedent for PPWR and other product groups.

Key facts

Market context

Mass balance accounting is a method for attributing renewable or recycled feedstock to chemical products when the physical material cannot be kept separate throughout production. Companies blend such inputs with conventional feedstock, then allocate the sustainable share to specific outputs on paper, which lets producers supply certified grades without dedicated process lines. Demand for these grades is driven mainly by packaging, consumer goods and automotive brand owners that want to meet recycled-content and carbon-reduction targets. Clear, harmonized calculation rules reduce disputes over what a claim means and make it easier for buyers to compare offers. For producers of specialty chemicals and polyols, tighter rules tend to favor suppliers that can document chain-of-custody through recognized certification schemes, while smaller suppliers may face higher compliance costs. Over time, such frameworks can shift pricing toward verified material and influence which product families receive premium positioning.

Source: official release on perstorp.com. Summary and context written by Market Krystal.