【文章摘要】 <正> On December 14th,2010 Yip's Chemical Holdings Limited (HKEx:0408),the world's largest manufacturer of acetate solvents and one of China's largest manufacturers of petrochemical products,announced it has signed a ten-year agreementwith Shanghai Zhangjiang Biotech & Pharmaceutical Base Development Co Ltd to rent a four-storey building in Shang- |