| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.28 | USD | 20250929 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 825.73 | USD | 20250929 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 801.81 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1062.05 | USD | 20250929 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.18 | USD | 20250929 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1069.08 | USD | 20250929 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1097.22 | USD | 20250929 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1097.22 | USD | 20250929 |