The price of Japanese-made naphtha, an indicator of synthetic rubber prices, was 47,200 yen ($380) per kiloliter for the third quarter (July–September), down by more than 3 percent, or 1,600 yen ($13), over the second quarter (April–June). Naphtha prices are expected to drop further in the October–December period. Falling raw material prices look to continue as a factor in tire…
