摘要
On July 1st,2009 Sinopec Baling Petrochemical Company Ltd.(BalingPetrochemical) commenced the production of its SBS(styrene-butadiene-styreneblock copolymer)expansion project(from 150000 t/a to 200000 t/a) in Yueyangof Hunan province,and become a leading SBS producer in China.