| Kuwait National Petroleum Co.(KNPC) | Fujian Meizhou Gulf Chlorine Alkali Co.,Ltd |
| China National Petroleum Corporation(CNPC) | Shenhua Ningxia Coal Industry CoM.,Ltd |
| China petroleum Chemical Copporation(SINOPEC) | Huisheng(Nanjing)Chemical Co.,Ltd |
| BEMCO | Shanxi Weihe Ferilizer Factory Inner Mongonlia Yitai Coal-Oil Co.,Ltd |
| IMT | Inner Mongonlia Yitai Coal-Oil Co.,Ltd |
| SWCC | Shanxi Shenmu Chemical Industry Co.,Ltd |
| National Power Plant(NPP) | Yankuang Lunan Fertilizer Factoty |
| Ministy of Electricity and Water(MEW) | Yankuang Guohong Chemical Co.,Ltd |
| KLAUS UNION | Yankuang Coal Industry Energy Chemical Co.,Ltd |
| LURGI | Shandong Binhua Group Co.,Ltd |
| SNC-LAVALIN | Shaxi Fengxi Fertilizer industry(Group) Co.,Ltd |
| TECHNIP | Shenmu Jinjie Tianyuan Chemical Co.,Ltd |
| CHEMTEX | CNPC Jilin Engineering Structure Co.,Ltd |
| LINDE | Shanxi Luan Coal-Oil Co.,Ltd |
| Bayer(Shanghai)Polymer Co.,Ltd | Shanxi lanhua Clean Energy Co.,Ltd |
| Tyco Flow Control | Anhui Linquan Chemical Co.,Ltd |
| SIMOPEC Material Adn Equipment Department | Zhejiang Hesheng Chemical Co.,Ltd |
| CCPITTEX/Zhejiang Hualian Sanxin Petro-Chemical Co.,Ltd | Hangzhou Boiler Group Co.,Ltd |
| SINOPEC luoyang Petroleum Chemical Engingeering Company(LPEC) | SINOPEC Shengli Oil Field Co.,Ltd |
| China Tianchen Chemical Engineering Company | SINOPEC Henan Oil Field Co.,Ltd |
| SINOPEC Qilu Branch Second Fertilizer Factory | SINOPEC Maoning Branch |
| SINIPEC Shanghai Engineering Compangy(SSEC) | SINOPEC Yangzi Branch |
| SINIPEC Ningbo Engineering Co.,Ltd(SNEC) | Shanghai Coking Factory |
| Huanlu Engineering Technology Co.,Ltd | Shanxi Coking Co.,Ltd |
| Wuhuan Chemical Engineering Co.,Ltd | Henan Goal Gas Co.,Ltd |