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For Immediate Release October 27 , 2021 Sumitomo Chemical Reports Consolidated Financial Results For the Half - Year Ended September 30 , 2021 For the half - year ended on September 30 , 2021 , the Sumitomo Chemical Group reported consolidated sales revenue of ¥ 1,325.2 billion , an increase of ¥ 278.4 billion year on year , core operating income * of ¥ 148.9 billion , operating income of ¥ 144.3 billion , and net income attributable to owners of the parent of ¥ 88.9 billion , all higher than the results from the same period of the previous year . Sumitomo Chemical decided to pay an interim dividend of ¥ 10 per share . * Core operating income is a gain and loss concept , reflecting recurring earning capacity , and deducts gains and losses incurred by non - recurring factors from operating income . It includes the share of profit from investments accounted for using the equity method . The financial results by business segment for the half - year are as follows : Petrochemicals & Plastics Market prices of petrochemical products , synthetic resins and synthetic fibers increased due to recovery of demand and an increase in raw material prices . Margins also improved . Therefore , sales revenue increased by ¥ 155.9 billion , to ¥ 399.5 billion , and core operating income recovered by ¥ 73.3 billion , to ¥ 42.0 billion , compared with the same period of the previous year , when the shipment volumes decreased due to the periodic shutdown maintenance for Rabigh Refining and Petrochemical Company , our equity method investee , and due to the impact of the COVID - 19 pandemic , mainly on demand for automotive use .