| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 1097.22 | USD | 20250929 | |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 886.21 | USD | 20250929 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1266.02 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Xinjiang Tianli Petrochemical Co., Ltd. | China national standards | MT | 1266.02 | USD | 20250929 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1406.69 | USD | 20250929 |