The Mitsubishi Chemical Group (MCG Group) announced that it has launched studies to perform chemical recycling of end-of-life tires (ELTs) by utilizing the coke ovens at its Kagawa Plant (Sakaide City, Kagawa Prefecture). The MCG Group aims to begin marketing sustainable carbon black made from ELTs by March 2026.

Image by MCG Group.

Along with the accelerating trend in the tire industry toward using sustainable raw materials, there is a growing need to use recycled carbon black, one of the main raw materials and a rubber reinforcing agent used in tires. By leveraging the MCG Group’s supply chain, it is able to feed crushed ELTs as raw material into its coke ovens and produce carbon black again from the tar.

According to the MCG Group’s research, this is the first attempt in the world to produce sustainable carbon black from ELTs using coke ovens. The sustainable carbon black produced has the same performance as conventional carbon black and can therefore be used again in new tires and hence contributes to a closed-loop recycling of tires. In preparation for commercialization, in July 2024, MCG started demonstration experiments where ELTs are fed into coke ovens. The aim is to sell sustainable carbon black at an annual rate of several thousand tons in FY2025, and at an annual rate of tens of thousands of tons in FY2030.

By establishing chemical recycling technology for ELTs, the MCG Group seeks to contribute to realizing a circular economy in the automobile and tire industries.

Press release by MCG Group.

For more information on Klean’s technology at work with Mitsubishi Group, please see » GO.