| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1074.16 | USD | 20251210 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1286.16 | USD | 20251210 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1116.56 | USD | 20251210 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 727.88 | USD | 20251210 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |