| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.69 | USD | 20250809 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.71 | USD | 20250809 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 784.51 | USD | 20250809 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1008.66 | USD | 20250809 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1092.71 | USD | 20250809 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 784.51 | USD | 20250808 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1092.71 | USD | 20250808 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1092.71 | USD | 20250808 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1008.66 | USD | 20250808 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.71 | USD | 20250808 |