Independent reports, certifications, and audit references for procurement, sustainability, and ESG teams. Everything in one place. Most assets are summarised here; the full reports are available under NDA.
Rambøll completed an independent cradle-to-grave LCA of our 600 ml PLA cup using a 1-cup functional unit and conformed to ISO 14040 / 14044. The headline number is 36 g CO₂e per cup. The methodology, the hot-spot analysis, and the sensitivity work are all in the full report, which we share under NDA with serious prospects.
Industrial composting (the end-of-life step that closes the loop) is roughly 0.6 g per cup. Compared with a fossil cup ending up in incineration, the end-of-life difference is the smaller part of the story. The cup's carbon footprint is dominated upstream, which is also where the next reductions come from: factory energy mix (rooftop solar at our factory in Taiwan is online and contributing), and lower-carbon polymerisation inputs.
For ESG and CSRD reporting, the defensible per-cup figure is 36 g CO₂e, attributable to Rambøll's name. Full report on request.
Our materials are certified industrial-compostable to EN 13432 by TÜV Austria under the OK Compost INDUSTRIAL programme. EN 13432 is the EU standard that defines what "compostable" means in a regulatory and contractual sense: complete biodegradation, no toxic residue, and a defined disintegration window under industrial composting conditions.
What it doesn't say: home-compostability. EN 13432 covers industrial composting conditions (50–60 °C, controlled humidity, active management). It is not a home-compost claim. We're explicit about this everywhere.
Certification has to be earned by the product, not borrowed from the material. A certificate that covers a compostable resin does not automatically cover a cup, bag, or bottle made from it. Colourants, additives, wall thickness, and the conversion process all change how a finished item behaves in a composting cycle, so each has to be tested and certified on its own. That is why our EN 13432 certification is held at the finished-product level, as the item actually ships, not at the raw-material level. Where a product line is still completing its own certification, we say so plainly rather than leaning on the material certificate.
Certificate numbers, material datasheets, and the migration test reports are available on request.
In late 2025 the European Commission's Joint Research Centre published the most thorough LCA work to date on plastics, biopolymers, and end-of-life pathways. Read carefully, the report supports several of the assumptions behind our model.
For our take on the report and what it means for procurement decisions, see the blog post: What the EU's plastic LCA report tells us, and why it matters.
Our partnership with Parken is the closed loop proven at full stadium scale. PARKEN Sport & Entertainment's 2025 Annual Report names GRØNBLÅ A/S as its partner in Europe's first stadium-wide replacement of single-use plastic, with the first-year result audited and reported under CSRD.
As the first stadium in Europe, F.C. København & Parken has in 2025 implemented measures that contribute to converting all single-use plastic (beer cups, serviceware, etc.) at Parken to bio-compostable plastic, which decomposes into soil that is subsequently used for soil improvement by an external supplier. This is done in partnership with GrønBlå A/S.PARKEN Sport & Entertainment, Annual Report 2025, p. 76
For procurement teams: this is the kind of disclosure auditors recognise. The methodology (total event-related waste in tonnes divided by registered guests in the period) is in the report. So is the audit sign-off.
Read the full case at parken.html, or the blog write-up on what the partnership proves: Parken and GRØNBLÅ: the closed loop at stadium scale.
For companies in scope of the EU's Corporate Sustainability Reporting Directive (CSRD), the GRØNBLÅ closed-loop system maps to specific disclosure points:
We can provide the underlying methodology notes, supplier data, and contract excerpts your assurance provider will ask for. The standard pre-deployment package includes everything required for an external auditor to sign off the relevant disclosures.
Rambøll's full LCA, the EN 13432 certificate numbers and migration tests, the methodology notes for the Parken audit reference, and our standard supplier-data pack for CSRD reporting are all available under NDA.
Request the documentation pack →
We respond within two business days. Once an NDA is in place, the full pack is delivered by email.