| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1067.39 | USD | 20251204 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 876.54 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 975.5 | USD | 20251204 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 735.16 | USD | 20251204 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.87 | USD | 20251203 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 727.87 | 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 | 734.94 | USD | 20251203 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 876.28 | USD | 20251203 |