Chenggong Mafuta Mugari weCongying City Daqing Oine Oine Resing Refinery Guizhou Baota Petrochemical Tank Zone Petrochina Dongying Petrochemical Co Ltd Shanxi Yanchang China Coal Yulin Energy uye Chemical Co LTD Sidalia kuungana uye kuratidzira Tianjin Cnooc Weiming petrochemical saiti Xinjiang kunlun Tianizeri yekambani yegasi Zhongke (Guangdong) Kunatsa & Chemical Co LTD