Continental is accelerating its efforts to make tyre production more sustainable, with the German tyre manufacturer expecting the share of renewable and recycled materials in its tyres to rise by up to three percentage points in 2025.

The average share stood at 26 percent in 2024, and Continental said it anticipates a further increase this year due to the expanded use of materials such as synthetic rubber derived from renewable sources, recycled PET polyester, recycled steel, and silica made from rice husk ash — a by-product of rice production.

“We are systematically increasing the share of renewable and recycled materials in our raw material portfolio. In five years, we aim to surpass the 40 percent mark,” said Jorge Almeida, Head of Sustainability at Continental Tires. “To achieve sustainable mobility, we are constantly searching for even more environmentally friendly materials. After extensive testing, we integrate them into production as quickly as possible.”

The company has set a goal of using over 40 percent renewable or recycled materials in its tyres by 2030, without compromising on performance or safety.

A key pillar of this transformation is the adoption of mass balance-certified materials. This approach, certified under ISCC Plus, enables Continental to mix certified and non-certified materials during production while maintaining strict accounting procedures to ensure traceability.

The company has already secured ISCC sustainability certification for its tyre plants in Lousado (Portugal), Hefei (China), Púchov (Slovakia) and Korbach (Germany). Continental is also scaling up its use of recycled steel, silica from rice husk ash, and PET yarns made from recycled plastic bottles via its proprietary ContiRe.Tex process.

Other sustainable innovations include COKOON, an adhesive coating system co-developed with Kordsa that replaces formaldehyde and resorcinol in bonding textile components with rubber. Continental also continues to explore alternative additives derived from renewable sources to improve the tyre vulcanisation process.

“We have developed a comprehensive portfolio of diverse, more sustainable materials and are continuously integrating them into all our products after extensive testing,” Almeida said. “In doing so, we ensure that there is no compromise in safety or performance. With this portfolio, we are getting closer and closer to our ambitious, long-term sustainability goals.”

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Kuraray Co., Ltd. has announced a significant step in its renewable energy transition through a 10-year virtual power purchase agreement (VPPA) between Kuraray Holdings U.S.A., Inc. and Tokyo Gas America Ltd. (a subsidiary of TOKYO GAS CO., LTD.). This agreement, which commences in October 2025, involves the procurement of renewable energy from a solar power project located in Wharton County, Texas.

Annually, the arrangement will supply Kuraray with renewable energy certificates equivalent to 300 gigawatt-hours of electricity. The company projects this initiative will yield a substantial reduction in its greenhouse gas emissions, cutting the Kuraray Group's US emissions by nearly 70 percent. Furthermore, this shift is expected to lower the entire Group's global electricity-related emissions by approximately 40 percent.

This VPPA is a core component of Kuraray's broader environmental strategy, which identifies climate action as a critical priority. The Group has established a long-term objective of achieving carbon neutrality for its Scope 1 and Scope 2 emissions by 2050. To ensure meaningful near-term progress, a new interim target has been set to reduce these emissions by 63 percent by 2035, using 2021 as the baseline year.

Beyond securing external renewable power, Kuraray is implementing a multi-faceted approach to decarbonisation. This includes enhancing energy conservation and operational efficiency across its production facilities, transitioning in-house power generation to natural gas and developing carbon capture, utilisation and storage technologies. The company will also collaborate with its supply chain to encourage a broader shift towards cleaner utility fuels. For advisory services related to this specific VPPA, Kuraray engaged Kinect Energy, Inc., a subsidiary of World Kinect Corporation.

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Cabot Corporation has announced a significant expansion of its manufacturing capabilities in North America, now producing circular reinforcing carbons through its EVOLVE Sustainable Solutions technology. This milestone elevates the company’s Ville Platte, Louisiana plant to the status of a key production site for these sustainable materials, alongside its existing facilities in Mauá, Brazil, and Valasske Mezirici, Czech Republic. The production of these carbons relies on a certified mass balance approach, using tyre pyrolysis oil (TPO) sourced from end-of-life tyres, which is validated under the International Sustainability & Carbon Certification (ISCC) PLUS framework.

This strategic move is a direct response to the ambitious goals of global tyre manufacturers, who are targeting 40 percent sustainable material content in their products by 2030. Cabot’s TPO-based circular reinforcing carbons are engineered to function as a drop-in replacement for traditional carbon black, enabling tyre makers to enhance the sustainable composition of their products without compromising performance or altering their manufacturing processes. By establishing production in Louisiana, Cabot is advancing its ‘make-in-region, sell-in-region’ strategy, which is designed to increase supply chain efficiency and significantly reduce transportation-related emissions for its North American customers.

To solidify the foundation for these offerings, Cabot has substantially grown its global network of ISCC PLUS certified sites, which now totals 14 facilities. This expanded certification encompasses 12 sites dedicated to its reinforcing carbons portfolio across Europe, the Americas and Asia, plus two additional masterbatch and compounding sites in Europe. This robust, globally distributed network ensures that Cabot can provide its customers with third-party certified, sustainable solutions that deliver consistent performance and verifiable traceability at an industrial scale.

Aatif Misbah, Vice President and General Manager, Sustainable Solutions, Reinforcement Materials segment, said, “As a leader and innovator in our industry, we are continuously enhancing our technology and manufacturing footprint to enable our customers to meet their sustainability objectives – now and into the future. With the expansion of our manufacturing footprint for circular reinforcing carbons under the recovered category of our EVOLVE Sustainable Solutions technology platform, we are well-positioned to continue to deliver scalable solutions that help drive progress towards a more sustainable world. As we advance in our own sustainability journey, we will continue to refine our efforts to ensure our offerings support the dynamic priorities of the industry.”

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Gummiwerk KRAIBURG GmbH & Co. KG has introduced a new portfolio of high-performance FKM compounds, marketed as KRAIBURG Fluor. This new series is engineered to meet the rigorous demands of technical applications where exceptional resilience to high temperatures and aggressive chemicals is paramount. The materials deliver an optimal balance of superior performance and cost-effectiveness.

These compounds provide outstanding resistance to heat, ozone, UV radiation and a wide range of corrosive media, claims the company. This robust profile ensures the longevity and reliability of components, even when subjected to the most severe operating environments. The versatility of KRAIBURG Fluor makes it suitable for numerous critical sectors. In the automotive industry, it is ideal for O-rings, fuel system components and various seals. The chemical industry can utilise it for seals that handle aggressive substances, while the aerospace and oil and gas sectors benefit from its high-temperature sealing capabilities and compatibility with fuels and lubricants.

Available standard in black, with other colours offered upon request, the materials come in various forms for further processing. These include calendered sheets and plates, endless feeder strips, extruded strips and granules. Manufacturers can utilise conventional techniques such as compression, transfer and injection moulding, as well as extrusion for specific types. Furthermore, the entire KRAIBURG Fluor series is fully compliant with major regulatory standards, including REACH, RoHS and strict limits on PFHxA.

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In a significant expansion of their existing recycling partnership, Alcoa Australia and Tyrecycle have commenced a new programme to repurpose used conveyor belts from Alcoa’s mining operations. The first reel of used belt was successfully delivered to Tyrecycle’s East Rockingham processing plant, marking a pivotal step in addressing a major waste stream. This initiative builds upon the companies' established contract for recycling off-the-road tyres and forms a core component of Alcoa’s broader corporate strategy to minimise, recycle and reuse waste generated by its Western Australian activities.

The ambitious programme will see approximately 32 kilometres of used conveyor belt transported to the facility over several months. In its initial phase, the collaboration aims to recycle 80 reels of belting. Tyrecycle will process an estimated 100 tonnes of this material weekly, transforming it into rubber crumb. This output will supplement the more than 300 tonnes of Alcoa’s used tyres the company already recycles annually. The primary focus of the recycling process is to reclaim the steel wire embedded within the belts and to convert the rubber into a versatile crumb product.

This crumb is destined for a wide array of practical applications, serving as a valuable additive in road construction bitumen, and as a raw material for creating surfaces for sports fields and playgrounds, adhesives and various moulded rubber goods. Tyrecycle emphasises a circular economy vision, aiming not just for repurposing but for eventually integrating recycled material back into the manufacturing of new conveyor belts. Since its inauguration, the East Rockingham facility has been instrumental in providing Western Australian mining operators with solutions to decarbonise their supply chains. This partnership with Alcoa simultaneously supports regional employment and advances shared environmental goals by diverting substantial rubber waste from landfill and giving it a productive new life.

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