The fifth and sixth rounds of the EV category in the All-Japan Kart Championship, featuring one-make tire supply by Sumitomo Rubber, were held on September 14 at Citycircuit Tokyo Bay in Koto-ku, Tokyo. In 2023, Sumitomo Rubber formulated its unique circular economy initiative, Towanowa, within its tire business. The company is promoting the use of sustainable raw materials in its…
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