Shipping volume for Japan’s synthetic rubber in 2015 (January–December) dropped by about 5 percent year-on-year to slightly over 1.632 million tons, according to the Japan Rubber Manufacturers Association (JRMA). Domestic shipping volume excluding chloroprene rubber (CR) and butyl rubber (IIR), whose figures weren’t released, fell about 5 percent from the previous year to around 890,000 tons. Export volume also declined…