The 180,000-ton-per-year butadiene extraction unit and the 100,000-ton/60,000-ton-per-year MTBE/1-butene units were successfully delivered.

The 180,000-ton/year butadiene extraction unit and the 100,000-ton/60,000-ton/year MTBE/butene-1 unit of the Guangxi Petrochemical Refining and Chemical Integration Transformation and Upgrading Project, undertaken by Qingdao Huayuan, have been successfully delivered.