reTyre, a sustainable tyre manufacturer, will unveil the world’s first carbon-neutral tyre at Eurobike 2024. This innovative concept tyre is made entirely from reclaimed materials, showcasing reTyre’s commitment to reducing emissions and revolutionising sustainable tyre production.

Sustainable materials for a greener future

The carbon-neutral tyre incorporates several unique materials, each chosen for its minimal environmental impact. Algae, sourced through controlled harvesting of blooms, helps restore aquatic ecosystems by preventing eutrophication and methane release. Recycled para-aramid, obtained from used body armour, is broken down and repurposed for the tyre’s beads and puncture protection, promoting a closed-loop recycling system and incorporating renewable carbon. Locally sourced post-consumer recyclate (PCR) with a low carbon footprint further minimises environmental impact. Finally, recycled fish nets collected from oceans are used for the tyre casing, leading to a 49 percent reduction in emissions and a 15 percent decrease in energy use compared to virgin materials.

Friedemann Ohse, who is leading the Carbon-Neutral Tyre Project at reTyre, elaborates on the meticulous process behind achieving carbon neutrality: “The product carbon footprint of this tyre is based on our third-party verified LCA, including the end-of-life, which is how we measure all our products. Our production and transportation processes are optimised to have close to zero emissions. End-of-life is reduced to almost zero due to the recycling of the tyres. The algae used in the tyre has a negative CO2 equivalent, balancing any remaining emissions to achieve a net-zero impact. This way, we have a carbon-neutral product without using well-known shortcuts, such as carbon quotas, subsidies, or other non-product-related contributions.”

Global collaboration for sustainability

reTyre partners with suppliers worldwide to ensure the responsible sourcing of materials. The UN Ecosystem Restoration Programme supports algae harvesting from lakes and oceans across the globe.

Sustainable tyres without compromise

reTyre offers a comprehensive portfolio of 100 percent sustainable products, providing brands with high-quality, eco-friendly tyres. Bio-based and fully renewable materials, never before used in pneumatic tyres, significantly reduce emissions. Additionally, a third-party-verified life cycle assessment (LCA) confirms an 82 percent reduction in greenhouse gas emissions compared to conventional tyres.

Ohse continues: “This carbon-neutral tyre is at a concept stage, and it is a result of continuous innovation that shows what our unique manufacturing is capable of.”

Beyond innovation: a full range of sustainable options

Alongside the groundbreaking carbon-neutral tyre, reTyre will showcase its entire range of sustainable products, including the new City Range bicycle tyre models explicitly designed for urban riders. These tyres boast bio-based and sustainable materials utilising reusable plant-based elastomers, new tread patterns for enhanced performance and grip, and matching performance to standard tyres, ensuring a smooth, eco-friendly cycling experience. The City Range also features a low carbon footprint throughout production and the product lifecycle and is fully reusable, setting a new benchmark in tyre sustainability. For complete data transparency, reTyre provides comprehensive compliance and sustainability tracking information.

reTyre’s entire product range prioritises sustainability and reusability, a unique proposition in the tyre industry. This commitment ensures that every component can be fully recycled and repurposed, fostering a closed-loop system that benefits the environment.

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Kraton Corporation, a leading global producer of speciality polymers and high-value biobased products derived from pine chemicals, has revealed a new strategic initiative for its Berre, France facility. The plan involves streamlining its polymer operations to concentrate exclusively on manufacturing USBC products, which will result in the cessation of HSBC production at that site.

This move is designed to bolster Kraton's long-term competitiveness by optimising its manufacturing footprint in reaction to a global overcapacity for HSBC. The company has formally started an information and consultation process with the local Works Councils, with a final decision expected following this mandatory period. The company has reaffirmed its commitment to supplying HSBC from its broader global network and to leveraging its worldwide presence to continue adapting to market demands.

Prakash Kolluri, President, Kraton Polymers, said, “Our aim with this plan is to strengthen Kraton’s long-term competitive position by optimising our manufacturing footprint in response to changing market dynamics associated with global overcapacity of HSBC production capability. With this step, we are preparing Kraton for a sustainable future by securing Kraton’s position as the leading global HSBC producer. Kraton is fully committed to supporting our customers through this transition with supply of HSBC products produced within our unmatched global manufacturing network. We recognise the impact of these actions, and are committed to a safe, respectful and supportive transition. The health, safety and well-being of the employees remain our top priorities.”

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Continental is accelerating its transition towards a circular economy by systematically increasing the use of renewable and recycled materials in its tyres. The company, which averaged a 26 percent sustainable material share in 2024, has set an ambitious target to raise this to at least 40 percent within five years. This strategy involves not only internal innovation but also actively encouraging its supply chain to develop and provide more sustainable raw materials.

A critical area of development is finding green alternatives for reinforcement materials like steel and textiles, which are essential for tyre safety, durability and performance. These materials can constitute over 18 percent of a passenger car tyre, and even more in commercial vehicle tyres. Continental is already integrating recycled steel and is pioneering the use of polyester yarn made from recycled PET bottles. Depending on the tyre size, the carcass of a single passenger car tyre can incorporate the equivalent of up to 15 bottles. This recycled polyester, developed with partner OTIZ, is verified to cut CO₂ emissions by approximately 28 percent compared to conventional materials and is already featured in production tyres like the UltraContact NXT.

The company's sustainable material portfolio extends beyond reinforcements. It includes synthetic rubber derived from used cooking oil, bio-based resins from waste streams and silica obtained from rice husk ash. Complementing these material advances is a commitment to greener manufacturing processes. Together with Kordsa, Continental has developed COKOON, an adhesion technology that bonds textiles to rubber without harmful chemicals. In a move to uplift the entire industry, this innovative solution has been made available to all tyre manufacturers as a free, open-source license, demonstrating Continental's broader commitment to fostering industry-wide sustainability.

Dr Matthias Haufe, Head of Material Development and Industrialization, Continental Tires, said, “We are not reinventing the wheel – but we are reinventing the tyre, with more sustainable materials and more environmentally compatible production processes. It’s not just about the rubber itself. We also focus on the materials that give the rubber its shape and make tyres stable and safe. Recycled steel and polyester yarn made from recycled PET bottles are important for more sustainable tyre production. Our goal is to use at least 40 percent renewable and recycled materials in our tyres within five years. Every alternative material brings us an important step closer to this goal. When it comes to sustainability, it’s not just the materials we switch to, but also those we deliberately do without.”

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Pyrum Innovations AG has officially announced that it will break ground on its next wholly-owned recycling facility in Perl-Besch on 14 November 2025. This new facility is a landmark project for the company, designed to be its largest to date and more than double its existing recycling capacity by processing in excess of 22,000 tonnes of used tyres each year.

The financial framework for this expansion is already taking shape. The project is supported by a diversified funding strategy that includes drawing on a EUR 25 million credit line from BASF and a committed debt financing term sheet from a major European bank. Finalising the package is contingent upon an agreement with Saarland authorities regarding land costs. Crucially, securing the Perl-Besch financing will unlock access to further substantial funding, including a second loan tranche from BASF, paving the way for additional projects in the company's rollout plan.

From a technical and logistical perspective, the Perl-Besch plant will be a state-of-the-art operation. It will be constructed on a 25,000-square-metre site in the strategically important border triangle of Germany, France and Luxembourg. The integrated facility will comprise a shredder plant, three next-generation Pyrum reactors, its own power plant and a grinding and pelletising plant. Insights gained from the existing plant in Dillingen are being directly applied to optimise construction and commissioning, aiming for a faster ramp-up to full production. The site was selected for its superior logistical advantages, offering direct connections to the Moselle River, railway lines and a nearby motorway to efficiently manage material flows from across Europe.

This new facility is central to Pyrum's financial roadmap, with the company projecting it will reach break-even upon its commissioning in 2027. Achieving this milestone is anticipated to create significant momentum and provide a solid foundation for the accelerated rollout of the company's broader project pipeline.

Pascal Klein, CEO, Pyrum Innovations AG, said, “Now that all the legal formalities have finally been clarified – development plan, planning permission and access to the site – we can hardly wait for things to visibly get underway. In the background, planning is already well advanced: The site has been prepared, numerous plant components with long delivery times – so-called long leads – have been ordered and the architect’s tenders for the ground work are underway. During construction, we will also benefit from the experience we have gained from the expansion of our main plant in Dillingen, so we are planning to start production in Perl-Besch in 2027.”

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Capital Carbon, a brand under India's Rathi Group, has successfully commissioned its new greenfield Recovered Carbon Black (rCB) facility in Gummidipoondi, Tamil Nadu. This development dramatically boosts the group's total rCB manufacturing capacity to 20,000 metric tonnes per year, a significant rise from its previous 5,000-tonne capacity.

The group distinguishes itself through complete vertical integration, handling the entire process from shredding end-of-life tyres to pyrolysis. This operation transforms waste into valuable materials, including rCB, fuel oil, steel wires and pyrolytic gas. The company utilises this gas for process heating, while the carbon char is either refined into rCB or supplied to cement plants as a sustainable energy source.

Ravi Rathi, Director, Rathi Group, said, "As Recovered Carbon Black gains wider acceptance, the industry continues to prioritise quality and consistency – and that's exactly what we've focused on addressing.”

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