DUNLOP is pleased to announce that it has for the first time adopted the sustainable carbon black for mass-production tires designed for certain passenger car models. The sustainable carbon black is produced via a chemical recycling process* that uses end-of-life tires (“ELTs”) and other materials. The production commenced at its Miyazaki Factory in November as part of the company’s efforts to promote recycling of resources.

The sustainable carbon black is manufactured using rubber chippings generated from tire manufacturing processes and crushed ELTs, which undergo a process called chemical recycling. We have been working on it in a joint project with Mitsubishi Chemical Corporation since January 2025.

This past August, we supplied racing tires produced using this material for a real-world racing series: the GT300 Class in Round 4 of the 2025 AUTOBACS SUPER GT, where the vehicle equipped with the tires took victories two days in a row. The tires demonstrated consistently stable performance throughout the race in the motorsports field, which stands at the forefront of tire development, where the latest vehicles are introduced.