March 2012 ethylene production in Japan fell 8.6% from levels seen in March 2011, partly due to a heavier maintenance shutdown, as per Reuters. Ethylene output totalled 470,400 tons in March 2012, vs 514,800 tons in March 2011, the Ministry of Economy, Trade and Industry said. March 2012 output was down 10.5% from 525,500 tons in February 2012. March saw two maintenance-related plant shutdowns in Japan, while one plant was shut in the same month a year earlier. Ethylene exports fell 14.7% to 163,600 tons in February 2012 vs February 2011.