The Tokyo Commodity Exchange (TOCOM) rubber contract, which began trading on the Osaka Exchange on Monday, fell nearly 1% on concerns about the impact of a second wave of Covid-19 cases on global growth and demand for commodities.
Japan's government said on Monday it would urge businesses to aim for 70% telecommuting and enhance other social-distancing measures amid a rise in cases among workers.
Around the world, infections continue to rise amid record cases in countries including the United States.
Japan's rubber contract for December delivery finished down 1.4 yen, or 0.9%, at 158.2 yen per kg.
