ChengGong Suauuli i le Onngeat City Daqing suauu lafu Giazhou Baota Petrochmical Tank Sone Petrochina le togiina o perrochemical co. ltd Shanxi Yanchang Saina Coal Yul Malosiaga ma Chemical CO. LTD Sa faapotopoto e Sidalia le Faapotopotoina ma Faaaliga Tianjin cnooc Sii atu o le petrochmical nofoaga Xinjiang Kunlun Tiaze Kakaina o Kaka Zhonngke (Guangdong) toe mauaina & chemical co. ltd