Sumitomo Chemical Co. Ltd. (TYO:4005) is ceasing operations at its ethylene propylene diene monomer (EPDM) production plant in Sodegaura, Chiba Prefecture, with plans to complete its sale by the end of March 2023. Sumitomo Chemical has been making efforts to boost the competitiveness of its operations here by increasing added value and cutting costs. More than 50 years after it…
