On August 16, Mr. Liu Yunshan, Member of Political Bureau of the CPC Central Committee, Secretary of the CPC Central Committee Secretariat and Director of CPC Publicity Department, visited PetroChina Lanzhou Petrochemical Company. He looked around the 3 mt/a reforming catalyse unit and the grand ethylene unit and acquired a general understanding of the performance of the company in terms of energy conservation and emission reduction, refining and chemical production, independent innovation, technology R&D and environmental protection.