| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.87 | USD | 20251203 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 876.28 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1116.54 | USD | 20251203 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.94 | USD | 20251203 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 876.28 | USD | 20251203 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 727.87 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.94 | USD | 20251203 |