Dunlop (Sumitomo Rubber Industries) has signed an MoU with Cabot Corporation to explore the use of circular reinforcing carbons in tire production, a move that could significantly cut the industry’s carbon footprint.

The partnership will evaluate Cabot’s patented regenerated carbon technology, part of its EVOLVE Sustainable Solutions. This innovative material is derived from the pyrolysis of end-of-life tires and represents a new sustainable raw material for Sumitomo Rubber, which has not previously used regenerated carbon in its tires.

Recognized by both companies as a key step in reducing emissions, the material will undergo testing for use in mass-produced tires, while Cabot scales production to meet anticipated market demand.

“As a brand committed to continuous innovation, DUNLOP will accelerate its efforts toward the commercialization of circular reinforcing carbon through our collaboration with Cabot,” said Takuya Horiguchi, general manager, Material Research & Development Headquarters, Material Department IV, Sumitomo Rubber Industries.

“By harnessing and integrating the full breadth of technologies and expertise of both companies, DUNLOP will expedite the path toward mass production and actively contribute to the realization of a decarbonized society.”

Aatif Misbah, vice president and general manager, Sustainable Solutions, Reinforcement Materials segment, Cabot Corporation, added: “As a leading producer of reinforcing carbons, enabling sustainability through innovation and collaboration is core to our work. We are committed to investing in technologies that advance the sustainability and performance of our products and their use.

"We are proud to collaborate with Sumitomo to test our regenerated reinforcing carbon material in tire applications. This MOU aligns with our sustainability commitment and contributes to the transition to a lower carbon future for the tire industry.”

The move ties into Sumitomo Rubber’s TOWANOWA circular economy initiative, which integrates sustainable raw materials and big data to reduce environmental impact across the tire value chain. The concept combines a “Sustainable Ring,” covering five key production processes, with a “Data Ring” that links insights from each step to create new value.

Looking forward, Sumitomo Rubber aims to expand TOWANOWA by reducing environmental impact, enhancing tyre safety and performance, and delivering innovative solutions to customers, all in pursuit of a sustainable future.