New ISCC EU Material List development strengthens market opportunities for certified ELT-derived TPO

Vienna, 6 May 2026 - Weibold welcomes the recent ISCC-EU development that recognizes the fossil fraction of end-of-life tires (ELTs) as a potential Recycled Carbon Fuel (RCF) feedstock.

For the tire pyrolysis industry, this is a highly positive and important step forward. It creates a clearer certification route for the fossil share of ELT-derived tire pyrolysis oil (TPO), complementing the established relevance of the biogenic share, which is linked mainly to natural rubber content.

The development offers new momentum for TPO suppliers, refiners, traders, and downstream offtakers seeking circular hydrocarbon streams with well-documented sustainability attributes.

Why this matters

ELT-derived TPO contains carbon from both biogenic and fossil sources. The ISCC-EU RCF development gives the industry a stronger basis to recognize the recycled-carbon value of the fossil fraction and to position certified TPO as a valuable feedstock for circular and lower-carbon fuel and chemical pathways.

This progress can support more transparent and commercially attractive discussions across the value chain. “ISCC EU’s progress on RCF certification is an encouraging milestone for the tire pyrolysis sector,” said Robert Weibold. “It supports a more mature market framework for TPO and creates a stronger basis for suppliers and refinery offtakers to recognize the recycled-carbon value of the fossil fraction of end-of-life tires.”

Positive implications for the market

For TPO suppliers, the update can improve the commercial positioning of certified TPO and support stronger engagement with refiners, fuel market participants, and circular carbon buyers.

For refiners and offtakers, it offers a clearer framework for evaluating ELT-derived TPO as a circular hydrocarbon feedstock with potential RCF characteristics.

For the wider industry, the development supports the transition toward professional, documented, and market-recognized certification structures. It also helps align product quality, certification evidence, greenhouse gas performance, and offtake requirements from the outset.

Weibold expects this development to contribute positively to the professionalization and growth of the tire pyrolysis sector.

About Weibold

Weibold is an independent international consulting company specializing in tire recycling and end-of-life tire pyrolysis. Since 1999, Weibold has supported clients worldwide in building, improving, and scaling commercially successful projects across the recycling and pyrolysis value chain.

The company combines technical expertise, global industry connections, and market intelligence to help clients navigate technology, product quality, regulatory requirements, and growth in the circular economy sector. Weibold supports clients from ELT feedstock to qualified end markets, including feedstock characterization, pyrolysis process modeling, rCB and TPO specification, laboratory support, process optimization, certification-ready documentation, life-cycle accounting, and market-access strategy.

Weibold advises clients on key certification systems and policy frameworks, including ISCC EU, ISCC+, REDcert-EU, REDcert², RED III, UK RTFO, ReFuelEU Aviation, FuelEU Maritime, RFS, and LCFS.

Weibold’s internal project base includes more than 800 ELT recycling and pyrolysis-related mandates, more than 350 market studies and strategic assessments, more than 50 due diligence assignments, and active client work in more than 30 countries.

Media contact

Robert Weibold GmbH
Kalvarienberggasse 13/59
1170 Vienna, Austria

Claus Lamer
claus@weibold.com
www.weibold.com