Revamping and expanding HDPE plant of Chemical Works No.1 was one of the ten benefit - increasing projects arranged by Beijing Yanhua Petrochemical Company in 1998.

• 北京燕化石油化工股份有限公司化工一厂高密度聚乙烯装置扩容改造项目是该公司1998年安排的10个效益增长点之一。