As the UK navigates an intense period of regulatory transformation, the packaging recycling sector faces mounting questions regarding the efficacy and value of the Packaging Recovery Note (PRN) system.

To cut through the debate with empirical evidence, Alupro has released an in-depth econometric review of the UK PRN market, spanning 12 years of data from January 2013 to December 2025.

Designed to provide objective, quantitative insight, the report evaluates performance across seven material types and 156 monthly observations, offering a data-driven foundation to guide future policy decisions and upcoming regulatory consultations.

Unpacking the core industry questions

To understand whether the PRN system functions as intended, Alupro’s independent statistical analysis set out to answer three fundamental questions:

• Price incentives: do higher PRN prices actively drive higher recycling tonnages?
• Market rationality: do PRN prices respond logically to evidence surpluses and shortfalls?
• Domestic vs. export divergence: do domestic reprocessing and export markets react differently to price fluctuations?

Key findings

The data reveals critical insights into how the PRN mechanism performs in practice:

• Incentive mechanism working: six of the seven material types demonstrated a significant, positive association between higher PRN prices and long-run received tonnages, with plastic emerging as the most price-sensitive.
• Rational pricing: a clear inverse relationship exists between PRN prices and evidence availability, where surpluses exert downward pressure on prices and shortfalls drive them upward.
• The export “release valve”: export markets proved highly responsive to price changes, showing stronger increases in exported tonnage than domestic reprocessing during high-price periods. This indicates that exports act as a crucial safety valve when domestic facilities operate near capacity.

Spotlight on aluminium

Focusing specifically on aluminium, the report uncovers material characteristics that emphasise why the PRN system operates as a collection of separate material markets rather than a uniform system:

• Asymmetric model: aluminium exhibits an asymmetric response; price increases are significantly associated with higher recycled tonnages, whereas price decreases show no significant association, ensuring that recycling gains are kept over the long term.
• Diverging routes: aluminium stands alone as the only material where domestic tonnage decreases while export tonnage increases as PRN prices rise.

Informing future consultations

Amid ongoing debate across the sector, Stephen Devine, membership and business development manager at Alupro, stressed that the report is intended to serve as a neutral baseline of evidence rather than a blanket defense or dismissal of the scheme.

As future reforms approach, this quantitative clarity provides stakeholders with the empirical foundation needed to shape effective, evidence-based policy.