Continental and Security Matters (SMX) have come together to develop and test a marker technology for natural rubber to bring greater transparency and traceability along the entire value chain of tyre and technical rubber products of the German tyre giant in the future.

Security Matters (SMX) focuses on the digitisation of physical objects in the blockchain

The marker substances enable the invisible labelling of natural rubber with information on its exact geographical origin. With the aid of special reading devices and specially developed software, the information on the natural rubber can be read out and its origin can be precisely assigned at any time. As part of the industrialisation of this technology, it would also be conceivable for the marker technology to be linked to blockchain technology, which is known to be particularly forgery-proof, said Continental.

"We are testing this marker technology to ensure in the future that the natural rubber we use in our tyres has been verifiably grown and sourced in a fully sustainable manner," says Claus Petschick, Head of Sustainability at Continental's Tires business area. He adds, "We aim to procure all our materials from responsible sources. Innovative technologies and digitalisation make an important contribution to this." Thus, by 2050 at the latest, all materials used by Continental in its worldwide tyre production are to be sourced responsibly.

Extensive laboratory tests by the two project partners have been successful. For example, different marker substances currently being tested have been detected both in the natural rubber latex ("Rubber tree to rubber bale test section") and in the processed and vulcanised natural rubber of the tire ("Rubber bale to tire test section"), and thus along the entire manufacturing process, without altering the appearance and performance of the end product.

Continental and Security Matters are now working on utilising the new marker technology to be used on a larger scale during the process of rubber extraction. "Our collaboration shows that physical and digital tracking can be ensured through unique and immutable chemical-based barcodes in rubber products as well," says Haggai Alon, founder, and CEO of Security Matters. He adds, "Together with Continental, we now want to use our marker technology to further improve the transparency of the natural rubber supply chain."

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Members of the Global Platform for Sustainable Natural Rubber gathered for the organisation’s seventh General Assembly, marking what it described as a pivotal year for accountability and member-led sustainability across the natural rubber value chain.

A key development in 2025 was the launch of GPSNR’s risk-based Assurance System, which sets sustainability expectations, introduces independent verification and aims to drive continuous improvement beyond regulatory compliance. The system was developed collaboratively over several years and is intended to provide a globally applicable framework for sustainability in the sector.

At the assembly, end-user companies reaffirmed their support for the Assurance System and agreed on a structured pathway towards full implementation within their category.

“This year marks a turning point for GPSNR,” said Stefano Savi, chief executive of GPSNR. “The Assurance System gives our members a shared and trusted foundation for demonstrating progress across the value chain.”

Members also reflected on the first year of the Shared Investment Mechanism, a model that allows manufacturers to share the costs of large-scale capacity-building projects. The initiative is intended to deliver long-term benefits for upstream participants, particularly smallholder producers.

“Sustainability cannot be achieved by one part of the value chain alone,” Savi said. “By investing together, our members are enabling more inclusive and impactful outcomes worldwide.”

Looking ahead to 2026, GPSNR said it would focus on supporting the implementation of the Assurance System through data collection, member learning programmes, and stakeholder dialogue, to ensure the framework reflects operational realities and different business models.

The assembly concluded with members reiterating their commitment to building more equitable, resilient and sustainable natural rubber supply chains.

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The Tire Recycling Foundation has opened nominations for its first Circle of Change Awards, aimed at recognising organisations, teams and individuals advancing innovation and sustainability across the tyre recycling sector.

Nominations opened on 15 December and will be accepted until 8 February  2026. The awards will honour contributions spanning tyre recycling technologies, end-use market development and leadership in circular economy practices.

“The Circle of Change Awards will serve as a powerful way to recognise national visionaries and changemakers who have shaped the trajectory of the full tyre recycling value chain over the past two decades,” said Anne Forristall Luke, president of the Tire Recycling Foundation board. “We are thrilled to recognise trailblazers making a lasting impact on end-of-life tyre (ELT) recycling and the circular economy.”

Four award categories will be presented at the 10th Tire Recycling Conference, scheduled to take place in Denver, Colorado.

“By spotlighting the collective progress being made in tyre recycling, the Foundation hopes these inaugural awards will inspire and fuel accelerating momentum in exciting new markets for recycled tyres,” said Stephanie Mull, executive director of the Tire Recycling Foundation.

The Innovation in End-Use Technology Award will recognise technologies, products or processes that use recycled tyre rubber in new ways, with a focus on technological advancement, commercialisation and sustainability impact.

The Circular Economy Trailblazer Recognition, State Leadership in Tire Market Innovation category will honour state agencies or statewide programmes that demonstrate leadership and measurable impact in advancing tyre recycling within a circular economy framework.

The Market Development Excellence Award will recognise efforts to expand end-use markets for tyre-derived materials through education, policy, marketing or advocacy, with an emphasis on measurable market growth and long-term strategy.

The Value Chain Collaboration Award will acknowledge partnerships across the tyre recycling value chain that deliver measurable improvements in efficiency, economics or environmental performance.

The foundation said organisations and individuals that have made significant contributions to tyre recycling or developed innovative solutions for tyre-derived materials are encouraged to apply. Award recipients will be allowed to showcase their achievements and inspire further progress across the sector.

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The German Rubber Industry Association (wdk) has called for enhanced policies to unlock the full potential of tyre recycling in Germany. While acknowledging the existing successes of the circular economy in this sector, Stephan Rau, Technical Director of wdk, emphasised that significant untapped opportunities remain. Last year alone, Germany generated 533,000 tonnes of used tyres, with nearly 70 percent kept in circulation through reuse, retreading and recycling. The wdk advocates for a stronger framework to improve these material flows and boost the market for recycled materials.

A central pillar of the wdk’s position is the demand for a modern, science-based evaluation of recycled rubber products. Over 200,000 tonnes of used tyres are processed annually into granules and rubber flour, vital secondary raw materials for sustainable manufacturing. However, Rau argues that their broader market success is hindered by outdated assessment methods. The association urgently recommends a risk-based approach that evaluates chemical ingredients based on their actual bioavailability and migration, rather than their mere presence. This perspective, now supported by the German Federal Institute for Risk Assessment (BfR), necessitates establishing binding limit values determined through migration analysis to ensure both safety and commercial viability.

Furthermore, the wdk highlights a critical gap in the complete monitoring of tyre material flows. A notable proportion of used tyres exit Germany and Europe for processing, depriving domestic recyclers of valuable secondary raw materials. To address this leakage and strengthen the circular economy, Rau stresses the need for comprehensive tracking of all end-of-life tyres. The association’s commitment is reflected in its patronage of the Alliance for Future Tyres (AZuR), a European network of nearly 100 partners from industry, trade and science dedicated to advancing a sustainable tyre circular economy across all segments.

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Hi-Green Carbon Limited has achieved a significant milestone in its sustainability operations by securing the prestigious ISCC EU Certification. This globally recognised endorsement highlights the company's adherence to rigorous international standards for environmental responsibility and supply chain integrity.

The certification verifies full compliance across the entire production process, from sourcing to delivery, emphasising traceability and operational transparency. It specifically validates the sustainable production of the company's key outputs, including recovered carbon black (rCB) and tyre pyrolysis oil (TPO). This accomplishment underscores Hi-Green Carbon’s commitment to circular economy principles and positions it as a leader in the production of sustainable industrial materials.

The company statement read: “This milestone not only strengthens our sustainability commitment but also deepens our collaboration with you, our valued clients and partners. With ISCC-certified products, you can have greater confidence in the environmental integrity and long-term sustainability of your supply chain, supporting your own green initiatives and carbon-reduction goals. We extend our sincere gratitude to our clients, partners, and team members for their consistent support and trust. Together, we are driving positive change and contributing to a cleaner, greener, and more circular future.”

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