| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.5 | USD | 20251126 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1285.38 | USD | 20251126 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1073.51 | USD | 20251126 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 847.51 | USD | 20251126 |